WPHY 42 - ASTM A860/A860M-2024

Grade	WPHY 42
Corresponding Standard	ASTM A860/A860M-2024 Standard Specification for Wrought High-Strength Ferritic Steel Butt-Welding Fittings
Classification	Alloy Steel

WPHY 42 Chemical Element Composition Content (%)

Component	C ^①	Si ^②	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	Al	More
Minimum Value	-	0.15	1	-	-	-	-	-	-	-	-	-	-	V+Nb:≤0.12 Ni+Cr+Mo+Cu:≤1.0
Maximum Value	0.2	0.4	1.45	0.03	0.01	0.3	0.5	0.35	0.25	0.05	0.1	0.04	0.06	V+Nb:≤0.12 Ni+Cr+Mo+Cu:≤1.0

① The carbon equivalent, as calculated by the following formula, shall not exceed 0.42%: CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
② If vacuum carbon deoxidation is used, silicon shall not exceed 0.10 % by heat analysis and 0.12 % by product analysis.

WPHY 42 Mechanical Properties

condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
	415~585	≥290	Rectangular specimen, for section thickness ≥ 7.94 mm ： ≥32
Specimen size, mm: 10×10				Average/min: 40/34
Specimen size, mm: 10×7.5				Average/min: 34/28
Specimen size, mm: 10×15				Average/min: 27/23

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