Class: ER80S-B6

AWS: A5.28

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

Weld Process: Tig (GTAW) Welding Processes

AWS Chemical Composition Requirements
C = 0.10 max	Mn = 0.40 – 0.70
Si = 0.50 max	P = 0.025 max
S = 0.025 max	Ni = 0.60 max
Cr = 4.50 – 6.00	Mo = 0.45 – 0.65
Cu = 0.35 max	Other = 0.50 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
This type of material contains 4% – 6% chromium and about 0.50% molybdenum. It is used to weld materials of similar composition, usually in the form of pipe or tubing for high temperature service applications.

Recommend using preheat and inter-pass temperature of 350º F min. during welding.

Deposited Chemical Composition % (Typical)
C = 0.07	P = 0.015	Cr = 5.25
Mn = 0.60	S = 0.006	Mo = 0.50
Si = 0.04	Ni = 0.45	Cu = 0.20

Deposited Mechanical Properties (S.R.) 1575º F for 2 Hours
Tensile Strength	78,500 psi
Yield Strength	60,500 psi
Elongation	32%

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