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ER630
ER630 is a precipitation hardening grade of stainless steel used for joining materials of similar chemical composition. Mechanical properties of this alloy are greatly influenced by the heat treatment.
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AWS Class: ER630 |
Certification: AWS A5.9/ A5.9M:2006 |
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Alloy: ER630 |
AWS/ASME SFA A5.9 |
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Welding Position: F, V, OH, H |
Current: DCEP |
Typical Properties (as welded)
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Yield, kpsi: |
135 |
|
Tensile Strength, kpsi: |
150 |
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Elongation%, min: |
10 |
Typical Wire Chemistry as per AWS A5.9 (single values are maximum)
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C |
Cr |
Ni |
Mo |
Mn |
Si |
P |
S |
Cu |
Element |
Amount |
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0.05 |
16.00-16.75 |
4.5-5.0 |
0.75 |
0.25-0.75 |
0.75 |
0.03 |
0.03 |
3.25-4.00 |
Nb |
0.15-0.30 |
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Typical Welding Parameters |
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Diameter |
Process |
Volt |
Amps |
GAS |
|
|
in |
(mm) |
||||
|
.035 |
(0.9) |
GMAW |
26-29 |
160-210 |
98% Argon/2% Oxygen or 97% Argon/3% Oxygen |
|
.045 |
(1.14) |
GMAW |
28-32 |
180-250 |
98% Argon/2% Oxygen or 97% Argon/3% Oxygen |
|
1/16” |
(1.6) |
GMAW |
29-33 |
200-280 |
98% Argon/2% Oxygen or 97% Argon/3% Oxygen |
|
Diameter |
Process |
Volt |
Amps |
GAS |
|
|
in |
(mm) |
||||
|
1/16” |
(1.6) |
GTAW |
14-18 |
90-130 |
100% Argon |
|
3/32” |
(2.4) |
GTAW |
15-20 |
120-175 |
100% Argon |
|
1/8” |
(3.2) |
GTAW |
15-20 |
150-220 |
100% Argon |