temper bead procedure

7/23/2019 Temper Bead Procedure

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1December 10, 2015

TEMPER BEAD PROCEDURE

Temper Bead weld reduces hardness and residual

stresses compared to welds created using

conventional process.

!O"#"#$%&ACE MR '" (# ) sour service speci*cation

re+uires onl, hardness control -ut does not maeP/0T is mandator,.

1 the welds can -e done with control on hardness ) it

meets the code re+uirement.



2 December 10, 2015


A!ME !ection 2 De*nes Temper Bead welding as3A weld -ead placed at a speci*c location in or

at the sur1ace o1 a weld 1or the purpose o1

a4ecting the metallurgical properties o1 the

heat a4ected 5one or previousl, deposited weldmetal. The temper -ead improves the properties o1 the

heat a4ected 5one or the weld metal deposited

-elow.



3 December 10, 2015

TEMPER BEAD PROCEDURE Once the 6irst -ead is deposited) the propert, o1

that -ead and its associated heat7a4ected 5one

can -e changed -, weld -eads that are depositedne8t to that -ead -ecause the energ, 9owing

1rom the weld pool raises the temperature o1 the

previousl, deposited weld and heat7a4ected 5one

to temper it.

Optimum tempering occurs when successive weld

-eads overlap previous weld heads -, :' to (';.

t is also important to mae the -ead consistentl,

uni1orm in thicness and width to optimi5e the

e4ectiveness to the tempering e4ects o1 the ne8t

la er o1 weld metal.



4 December 10, 2015

TEMPER BEAD PROCEDURE /hen writing the /P!) the heat input 1or each

weld la,er recorded on the P<R -ecomes the

-asis 1or the heat input speci*ed in the /P!.

/P! shall speci1, heat input and controls. This is

to help the welder and <C nspector not to

calculate the heat input during production weld

Temper Bead Techni+ue is also supplemented -,

0al17Bead Techni+ue= in weld repair .

0al17Bead Techni+ue involves grinding and

removal o1 #';o1 temper7-ead la,er o1 weld



December 10, 2015


TEMPER BEAD % 0A>6 BEAD TEC0&<UE O6 /E>D BEAD

DEPO!TO&

temper bead procedure

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