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ER80S-B8

AWS A5.28 ER80S-B8

80S-B8 is a low alloy Cr-Mo air hardening filler commonly
Used for high temperature and creep resistance needs often in the oil and chemical industries where base metal such as 9% Cr, 1% Mo steels are found. Typical base metals found in this group are ASTM/ASME grades: A/SA- 182-F9, A/SA- 199-T-9, A/SA- 213-T9, A217 C12, A/SA- 234 WP9, A/SA- 335-P9, A/SA- 336-P9, A/SA- 369-FP9, A/SA- 691 9CR, A/SA 989 9% chromium, A1012 T9 and A/SA- 387-Gr9. Controlled preheat, interpass and postheat treatment are needed. 80S-B8 is similar to the previously classified ER505 in AWS A5.9-93

TYPICAL WIRE CHEMISTRY (%)

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ER80S-B6

AWS Spec

C


0.10 max.

Mn


0.40-0.70

Si


0.50 max.

P


0.025 max.

S


0.025 max.

Mo


0.80-1.20

Cr

8.00-10.50





Typical mechanical properties of weld metal (C02 shielding gas)

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ER80S-B6

AWS Spec

Yield strength (psi)


68,000 min

Ultimate tensile strength (psi)


80,000 min

Elongation in 2" (%)


17 min

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


N/A

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