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ER 90S-B3

Technical Data Sheet

Chemical Composition Limits
Weight%	C	Mn	Si	Cr	Mo	P	S	Cu	Ni	OET
ER 90S-B3	0.07-0.12	0.40-0.70	0.40-0.70	2.30-2.70	0.90-1.20	0.025 max	0.025 max	0.35 max	0.20 max	0.50 max

Alloy ER90S-B3 is designed for welding 2.25 % Cr and 1% Mo steels, which are used for high temperature applications. A preheat and interpass temperature of not less than 350ºF should be maintained during welding.

Typical Mechanical Properties

Material	Ultimate Tensile Strength		Offset Yield Strength 0.2 %		Elongation (%)
Material	psi	MPa	psi	MPa	Elongation (%)
ER 90S-B3	97,150	670	79,750	550	26

Availability
Alloy ER 90S-B3 is a mild and low alloy steel TIG, MIG and SUB-ARC wire used for welding. For all stock availability contact Sales.

Specifications
AWS 5.28
ASME SFA 5.28
AWS ER90S B3
UNS K30960

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.