specification for cold rolled sheet steels
TRANSCRIPT
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8/6/2019 Specification for Cold Rolled Sheet Steels
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Date : 23rd August 2006
SCOPE : This specification specifies the delivery conditions of Cold Rolled Close
Annealed (CRCA) and Cold Rolled Full Hard (CRFH) Steel sheets and
coils supplied by Ispat Industries Ltd.
REFERRED STANDARDS : JIS:G:3141 - Cold Reduced Carbon Steel sheets & strips.
IS:513 - Cold Rolled Low Carbon Steel Sheets & Strips
DIN:1623 - Cold Rolled Carbon Steel sheets & strips.
BS:1449 - Cold Rolled Carbon Steel sheets & strips.ASTM:A:1008 - Cold Rolled Carbon Structural High Strength Low Alloy
ASTM:A:620 - Specification for Drawing Steel (DS) Sheet, Carbon.
Cold Rolled
Parameters Unit Product Min Max
Thickness(CRCA) mm Coil/Sheets 0.35 4.00
Thickness (Hot Rolled, Pickled and Skin pass) mm Coil/Sheets 1.4 6.00
Thickness CRFH mm Coil 0.13 4.00
ISPAT INDUSTRIES LIMITED, KALMESHWAR - NAGPUR (INDIA)
Phone ++91 7118 271401 to 271406
Fax ++91 7118 271400, 271479
PRODUCT RANGE :
E-mail - [email protected] - www.ispatind.com
SPECIFICATION FOR COLD ROLLED STEEL SHEETS & COILS
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Width mm Coil/Sheets 600 1250
Length mm Sheets 500 3600
Coil OD (As per Wt Requirement) mm Coils - -
Coil ID mm Coils 508 508
Coil Weight MT Coils 4 12
Packet Weight MT Sheets 1.5 2.5
Thickness Tolerance Thickness Tolerance
Under 0.25 0.020
0.26 - 0.40 0.030
0.41 - 0.60 0.040
0.61 - 0.80 0.050
0.81 - 1.00 0.060
1.01 - 1.25 0.060
1.26 - 1.60 0.070
1.61 - 2.00 0.0802.01 - 2.50 0.090
2.51 - 3.00 0.100
3.01 - 4.00 0.120
4.01 - 5.00 0.1505.01 - 6.00 0.160
Width Tolerance Tolerance
Upto 1250 mm Slit Edge mm 0.50
Upto 1270 mm Mill Edge mm +6,-0.00
Length Tolerance mm +6,-0.00
Diagonal Difference mm 2.00 max
Flatness mm 5.00 max
Camber mm 0.5mm/mtr
RP oil Film on strip (Both side together) gsm 1 to 2Surface Finish(Bright) Ra Microns 0.5 maxSurface Finish(Matt) Ra Microns 0.6 to 1.6