Class: ER90S-B9

AWS: A5.28

Conforms to Certification: AWS A5.28                     ASME SFA A5.28

Weld Process: Tig (GTAW) Welding Processes

AWS Chemical Composition Requirements
C = 0.07 – 0.13	Mn = 1.20 max
Si = 0.15 – 0.50	P = 0.010 max
S = 0.010 max	Ni = 0.80 max
Cr = 8.00 – 10.50	Mo = 0.85 – 1.20
V = 0.15 – 0.30	Al = 0.04 max
Cu = 0.20 max	N = 0.03 – 0.07
Nb = 0.02 – 0.10	Other = 0.50 max

Note:  the sum of Mn + Ni shall be less than or equal to 1.50% max.

Available Sizes
.030 x 36
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36
3/16 x 36
5/32 x 36

Application
Material contains 9% chromium and 1% molybdenum. Classification is intended for welding base materials of similar composition. Requires controlled preheat, inter-pass and post-weld heat treatment.

Deposited Chemical Composition % (Typical)
C = 0.09	P = 0.009	Cr = 8.75
Mn = 0.85	S = 0.009	Mo = 1.08
Si = 0.20	Ni = 0.55	Cu = 0.11
V = 0.19	Nb = 0.08	N = 0.04

 

Deposited Mechanical Properties (SR) 1400º F for (2) Hours
Tensile Strength	112,000 psi
Yield Strength	100,000 psi
Elongation	17%

Deposited Charpy-V-Notch Impact Properties %
Not Applicable

Available Sizes & Recommended Welding Parameters
Process	Diameter of Wire	Voltage (V)	Amperage (A)	Gas
Tig	.035 inches x 36	10 – 12	50 – 70	100% Argon
	.045 inches x 36	10 – 12	70 – 100	100% Argon
	1/16 inches x 36	12 – 15	100 – 125	100% Argon
	3/32 inches x 36	15 – 20	125 – 175	100% Argon
	1/8 inches x 36	15 – 20	175 – 250	100% Argon