Product FormSelect first TABLE2Athe ProductForm before FERROUS MATERIALS AT DESIGN TEMPERATURElooking for (Materials Permitted on ASME Sec. VIII-2 Only)the materialspecification. ASME 2001 Allowable Stress at Design Temp.

Design TemperatureSmls. pipe 0 32 Stress

Nominal Composition Min. Strength18Cr - 8Ni

TensileSpec No Type/Grade Alloy Design / UNS YieldSA-312 TP304 S30400ASME Locator Applic. & Max. Temp.(deg.F / NP)

Addenda Page Line Class / Cond / Tempe Limits on Section III 316 7 Limits on Sec.VIII-2

Applicable Notes Ext.Chart.No.

G7 G10 G11 HA-1

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General Notes(a) The following abbreviations are used: Applic., Applicability; Cond., Condition; Desig., Designation; Smls., Seamless; and Wld., Welded.

G7

G10 At temperatures over 1000oF, these stress intensity values apply only when the carbon is 0.04% or higher. This note is applicable only when stresses above 800oF are published.

G11 #N/A

MAXIMUM ALLOWABLE STRESS VALUES S FOR

oC oF

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

Plate

Forgings

Pipe

Tube

Fitting

Bar

Cast

Remarks:

FERROUS MATERIALS AT DESIGN TEMPERATURE

Allowable Stress at Design Temp.

ksi Mpa

20.0 137.8951 1406.14

Min. Strengthksi Mpa

75 517.1068 5,273

30 206.8427 2,109

Applic. & Max. Temp.(deg.F / NP)Limits on Section III 800Limits on Sec.VIII-2 800

Tick(in) P-No. G-No. 8 1

General NotesThe following abbreviations are used: Applic., Applicability; Cond., Condition; Desig., Designation; Smls., Seamless; and Wld., Welded.

At temperatures over 1000oF, these stress intensity values apply only when the carbon is 0.04% or higher. This note is applicable only when stresses above 800oF are published.

#N/A

MAXIMUM ALLOWABLE STRESS VALUES S FOR

kg/cm2

kg/cm2

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will

Austenitic S.S. High temperature & general corrosion service. As low as -425ﾟF(-250ﾟC) w/o impact test

Notes Group Addenda note_abrv note_textGeneral Note (a) The following abbreviations are used: Applic., Applicability; Cond., Condition; Desig., Designation; Smls., Seamless; Temp., Temperature; and Wld., Welded.General Requirements G1 Material that conforms to Class 10, 13, 20, 23, 30, 33, 40, 43, 50, or 53 is not permitted.General Requirements G2 Material that conforms to Class 11 or 12 is not permitted.General Requirements G3 Material that conforms to Class 11 or 12 is not permitted when the nominal thickness of the material exceeds 3/4 in.General Requirements G4 Material that conforms to Class 11 or 12 is not permitted when the nominal thickness of the material exceeds 1 1/4 in.General Requirements 01 G5 ...

General Requirements G6General Requirements G7 Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

General Requirements G8

General Requirements G9

General Requirements G10

General Requirements G11

General Requirements G12General Requirements G13 The Sy values of this material vary with annealing temperature. See Table Y-1.General Requirements G14 A quality factor of 0.85 has been applied in arriving at the design stress intensity values for this material.General Requirements G15 Impact testing in accordance with Section III Subarticle NX-2300 is not required.General Requirements G16 G-2110(b) of Section III is mandatory for this material.General Requirements G17 These stress intensity values shall be considered basic values to be used when no effort is made to control or check the grain size of the steel.

General Requirements G18General Requirements G19 The tensile strength shall not be in excess of 20,000 psi above the specified minimum.General Requirements G20 All forgings shall have a maximum tensile strength not in excess of 25 ksi above the specified minimum.General Requirements G21 For Section VIII applications, SA-723 is exempt from the requirement in AF-730.3(b) that the average of the individual Brinell hardness numbers shall not be more than 10% below or 25% above the number corresponding to the tensile strength.General Requirements G22 Fabricated from SA-387 Grade 12 Class 1 plate.General Requirements G23 Fabricated from SA-387 Grade 12 Class 2 plate.General Requirements G24 See Appendix 26 of Section VIII, Division 2.Heat Treatment Requirements H1 Annealed.Heat Treatment Requirements H2 Normalized and tempered.Heat Treatment Requirements H3 Quenched and tempered.Heat Treatment Requirements H4 Liquid quenched and tempered.Heat Treatment Requirements H5 Normalized, normalized and tempered, or quenched and tempered.

Heat Treatment Requirements H6

Heat Treatment Requirements H7Size Requirements S1 The maximum thickness of forgings shall not exceed 3 3/4 in. (4 in. as heat treated).Size Requirements S2 The maximum section thickness shall not exceed 3 in. for double-normalized-and-tempered forgings, or 5 in. for quenched-and-tempered forgings.Size Requirements S3 Both NPS 8 and larger, and schedule 140 and heavier.Size Requirements S4 The minimum thickness of pressure retaining parts shall be 1/4 in.Welding Requirements W1 Not for welded construction.Welding Requirements W2 For Section VIII applications, welding not permitted when carbon content exceeds 0.35% by ladle analysis except for limited types of welding, as allowed in Part AF.Welding Requirements W3 Nonwelded, or welded if the tensile strength of the Section IX reduced section tension test is not less than 100 ksi.Welding Requirements W4 Welded, with the tensile strength of the Section IX reduced section tension test less than 100 ksi but not less than 95 ksi.

Welding Requirements W5Welding Requirements W6 For Section VIII applications, Section IX, QW-250 Variables QW-404.12, QW-406.3, QW-407.2, and QW-409.1 shall also apply to this material. These variables shall be applied in accordance with the rules for welding of Part AF.

SA-723 shall not be used for minimum permissible temperature below +40oF.

This material has reduced toughness at room temperature after exposure at high temperature. The degree of embrittlement depends on composition, heat treatment, time, and temperature. The lowest temperature of concern is about 500oF. See Appendix 6, 6-360.

The stress-rupture test is not required for design temperatures 800oF and below.

At temperatures over 1000oF, these stress intensity values apply only when the carbon is 0.04% or higher. This note is applicable only when stresses above 800oF are published.

For temperatures above 1000oF, these stress intensity values may be used only if the material has been heat treated by heating to a minimum temperature of 1900oF and quenching in water or rapidly cooling by other means. This note is applicable only when stresses above 800oF are published.

These stress intensity values at temperatures of 1050oF and above should be used only when assurance is provided that the steel has a predominant grain size not finer than ASTM No. 6. This note is applicable only when stresses above 800oF are published.

This steel may be expected to develop embrittlement after service at moderately elevated temperature; see Appendix 6. For P-No. 10H Gr. 1 materials, exposure to temperatures in the range of 1100oF to 1700oF for relatively short periods of time may result in severe loss of ductility due to sigma formation; see 6-340 and 6-360.

Normalized at 1900-2000oF and tempered at 1350oF, minimum.

For Section III applications (if any), if heat treatment is performed after forming or fabrication, it shall be performed at 1500-1850oF for a period of time not to exceed 10 min at temperature, followed by rapid cooling. For Section VIII applications involving consideration of heat treatment after forming or welding, see Table AF-402.1 for P-No. 10K, Group No. 1 materials.

In welded construction, for temperatures above 850oF, the weld metal shall have a carbon content of greater than 0.05%.

The following abbreviations are used: Applic., Applicability; Cond., Condition; Desig., Designation; Smls., Seamless; Temp., Temperature; and Wld., Welded.Material that conforms to Class 10, 13, 20, 23, 30, 33, 40, 43, 50, or 53 is not permitted.Material that conforms to Class 11 or 12 is not permitted.Material that conforms to Class 11 or 12 is not permitted when the nominal thickness of the material exceeds 3/4 in.Material that conforms to Class 11 or 12 is not permitted when the nominal thickness of the material exceeds 1 1/4 in.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

The Sy values of this material vary with annealing temperature. See Table Y-1.A quality factor of 0.85 has been applied in arriving at the design stress intensity values for this material.Impact testing in accordance with Section III Subarticle NX-2300 is not required.G-2110(b) of Section III is mandatory for this material.These stress intensity values shall be considered basic values to be used when no effort is made to control or check the grain size of the steel.

The tensile strength shall not be in excess of 20,000 psi above the specified minimum.All forgings shall have a maximum tensile strength not in excess of 25 ksi above the specified minimum.For Section VIII applications, SA-723 is exempt from the requirement in AF-730.3(b) that the average of the individual Brinell hardness numbers shall not be more than 10% below or 25% above the number corresponding to the tensile strength.Fabricated from SA-387 Grade 12 Class 1 plate.Fabricated from SA-387 Grade 12 Class 2 plate.See Appendix 26 of Section VIII, Division 2.

Normalized, normalized and tempered, or quenched and tempered.

The maximum thickness of forgings shall not exceed 3 3/4 in. (4 in. as heat treated).The maximum section thickness shall not exceed 3 in. for double-normalized-and-tempered forgings, or 5 in. for quenched-and-tempered forgings.Both NPS 8 and larger, and schedule 140 and heavier.The minimum thickness of pressure retaining parts shall be 1/4 in.

For Section VIII applications, welding not permitted when carbon content exceeds 0.35% by ladle analysis except for limited types of welding, as allowed in Part AF.Nonwelded, or welded if the tensile strength of the Section IX reduced section tension test is not less than 100 ksi.Welded, with the tensile strength of the Section IX reduced section tension test less than 100 ksi but not less than 95 ksi.

For Section VIII applications, Section IX, QW-250 Variables QW-404.12, QW-406.3, QW-407.2, and QW-409.1 shall also apply to this material. These variables shall be applied in accordance with the rules for welding of Part AF.

SA-723 shall not be used for minimum permissible temperature below +40oF.

This material has reduced toughness at room temperature after exposure at high temperature. The degree of embrittlement depends on composition, heat treatment, time, and temperature. The lowest temperature of concern is about 500oF. See Appendix 6, 6-360.

The stress-rupture test is not required for design temperatures 800oF and below.

At temperatures over 1000oF, these stress intensity values apply only when the carbon is 0.04% or higher. This note is applicable only when stresses above 800oF are published.

For temperatures above 1000oF, these stress intensity values may be used only if the material has been heat treated by heating to a minimum temperature of 1900oF and quenching in water or rapidly cooling by other means. This note is applicable only when stresses above 800oF are published.

These stress intensity values at temperatures of 1050oF and above should be used only when assurance is provided that the steel has a predominant grain size not finer than ASTM No. 6. This note is applicable only when stresses above 800oF are published.

This steel may be expected to develop embrittlement after service at moderately elevated temperature; see Appendix 6. For P-No. 10H Gr. 1 materials, exposure to temperatures in the range of 1100oF to 1700oF for relatively short periods of time may result in severe loss of ductility due to sigma formation; see 6-340 and 6-360.

Normalized at 1900-2000oF and tempered at 1350oF, minimum.

For Section III applications (if any), if heat treatment is performed after forming or fabrication, it shall be performed at 1500-1850oF for a period of time not to exceed 10 min at temperature, followed by rapid cooling. For Section VIII applications involving consideration of heat treatment after forming or welding, see Table AF-402.1 for P-No. 10K, Group No. 1 materials.

In welded construction, for temperatures above 850oF, the weld metal shall have a carbon content of greater than 0.05%.

The following abbreviations are used: Applic., Applicability; Cond., Condition; Desig., Designation; Smls., Seamless; Temp., Temperature; and Wld., Welded.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

These stress intensity values shall be considered basic values to be used when no effort is made to control or check the grain size of the steel.

For Section VIII applications, SA-723 is exempt from the requirement in AF-730.3(b) that the average of the individual Brinell hardness numbers shall not be more than 10% below or 25% above the number corresponding to the tensile strength.

The maximum section thickness shall not exceed 3 in. for double-normalized-and-tempered forgings, or 5 in. for quenched-and-tempered forgings.

For Section VIII applications, welding not permitted when carbon content exceeds 0.35% by ladle analysis except for limited types of welding, as allowed in Part AF.

For Section VIII applications, Section IX, QW-250 Variables QW-404.12, QW-406.3, QW-407.2, and QW-409.1 shall also apply to this material. These variables shall be applied in accordance with the rules for welding of Part AF.

This material has reduced toughness at room temperature after exposure at high temperature. The degree of embrittlement depends on composition, heat treatment, time, and temperature. The lowest temperature of concern is about 500oF. See Appendix 6, 6-360.

F, these stress intensity values apply only when the carbon is 0.04% or higher. This note is applicable only when stresses above 800oF are published.

F, these stress intensity values may be used only if the material has been heat treated by heating to a minimum temperature of 1900oF and quenching in water or rapidly cooling by other means. This note is applicable only when stresses above 800oF are published.

F and above should be used only when assurance is provided that the steel has a predominant grain size not finer than ASTM No. 6. This note is applicable only when stresses above 800oF are published.

This steel may be expected to develop embrittlement after service at moderately elevated temperature; see Appendix 6. For P-No. 10H Gr. 1 materials, exposure to temperatures in the range of 1100oF to 1700oF for relatively short periods of time may result in severe loss of ductility due to sigma formation; see 6-340 and 6-360.

For Section III applications (if any), if heat treatment is performed after forming or fabrication, it shall be performed at 1500-1850oF for a period of time not to exceed 10 min at temperature, followed by rapid cooling. For Section VIII applications involving consideration of heat treatment after forming or welding, see Table AF-402.1 for P-No. 10K, Group No. 1 materials.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

For Section VIII applications, SA-723 is exempt from the requirement in AF-730.3(b) that the average of the individual Brinell hardness numbers shall not be more than 10% below or 25% above the number corresponding to the tensile strength.

For Section VIII applications, Section IX, QW-250 Variables QW-404.12, QW-406.3, QW-407.2, and QW-409.1 shall also apply to this material. These variables shall be applied in accordance with the rules for welding of Part AF.

This material has reduced toughness at room temperature after exposure at high temperature. The degree of embrittlement depends on composition, heat treatment, time, and temperature. The lowest temperature of concern is about 500oF. See Appendix 6, 6-360.

F and quenching in water or rapidly cooling by other means. This note is applicable only when stresses above 800oF are published.

F and above should be used only when assurance is provided that the steel has a predominant grain size not finer than ASTM No. 6. This note is applicable only when stresses above 800oF are published.

F to 1700oF for relatively short periods of time may result in severe loss of ductility due to sigma formation; see 6-340 and 6-360.

F for a period of time not to exceed 10 min at temperature, followed by rapid cooling. For Section VIII applications involving consideration of heat treatment after forming or welding, see Table AF-402.1 for P-No. 10K, Group No. 1 materials.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

F for relatively short periods of time may result in severe loss of ductility due to sigma formation; see 6-340 and 6-360.

F for a period of time not to exceed 10 min at temperature, followed by rapid cooling. For Section VIII applications involving consideration of heat treatment after forming or welding, see Table AF-402.1 for P-No. 10K, Group No. 1 materials.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.

Due to the relatively low yield strength of these materials, these higher stress values were established at temperatures where the short time tensile properties govern to permit the use of these alloys where slightly greater deformation is acceptable. The stress values in this range exceed 66 2/3% but do not exced 90% of the yield strength at temperature. Use of these stresses may result in dimensional changes due to permanent strain. These stress values are not recommended for the flanges of gasket joints or other applications where slight amounts of distortion can cause leakage or malfunction. Table Y-2 lists multiplying factors which, when applied to the yield strength values shown in Table Y-1, will give allowable stress values that will result in lowerlevels of permanent strain.