TRUSTED QUALITY. UNDENIABLE PERFORMANCE. INDUSTRY HERITAGE.

Er90s-B3

AWS A5.28 Class ER90S-B3

90S-B3 is a low alloy fillerdesigned to produce high strengths on2 1/4 & Cr-1 Mo steels found in high temperature/high pressure piping and vessels. It may also be used on carbon steels to Cr-Mo base metals. Controlled preheat, interpass and postheat treatment may be needed to avoid cracking.

TYPICAL WIRE CHEMISTRY (%)

-

ER90S-B3

AWS Spec

C

0.10

0.07-0.12

Mn

0.63

0.40-0.70

Si

0.46

0.40-0.70

P

0.012

0.025 max.

S

0.012

0.025 max.

Mo

1.06

0.90-1.20

Cr

2.55

2.30-2.70

Ni

0.10

0.20 max.

Cu

0.11

0.35 max.

Typical mechanical properties of weld metal (C02 shielding gas)

-

ER90S-B3

AWS Spec

Yield strength (psi)

80,500

78,000 min

Ultimate tensile strength (psi)

94,500

90,000 min

Elongation in 2" (%)

19

17 min

Charpy V-notch at 0 F (ft. lbs)


N/A