Class: ER90S-B9

AWS: A5.28

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

Weld Process: Mig (GMAW) 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

Sizes Available Upon Request

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 (S.R.) 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
MIG – Sprayer Transfer	.035 inches	28 – 32	165 – 200	98% Argon + 2% Helium
	.045 inches	30 – 34	180 – 220	75% Argon + 25% CO2
	1/16 inches	30 – 34	230 – 260	100% CO2
MIG – Short Arc Transfer	.035 inches	22 – 25	100 – 140	100% CO2
	.045 inches	23 – 26	120 – 150	75% Argon + 25% CO2

 

 

 

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