A470 Grade C Class 6 A470 Class 6 - ASTM A470/A470M-2005(R2025)

Grade	A470 Grade C Class 6
Old Grade
Corresponding Standard	ASTM A470/A470M-2005(R2025) Standard Specification for Vacuum-Treated Carbon and Alloy Steel Forgings for Turbine Rotors and Shafts
Classification	Alloy Steel

A470 Grade C Class 6 Chemical Element Composition Content (%)

Component	C	Si ^{① ②}	Mn	P	S	Cr	Ni	Mo ^③	V	Al ^④
Minimum Value	-	-	0.2	-	-	1.25	3.25	0.25	0.05	-
Maximum Value	0.28	0.1	0.6	0.012	0.015	2	4	0.6	0.15	0.015

① 0.10 % max, unless an alternative value, not in excess of 0.30 %, is specified in the purchase order.
② 0.15 % to 0.30 % silicon is permitted for material that is subsequently VAR Processed.
③ If desirable because of operating temperatures, the purchaser may specify a molybdenum content of 0.40 % min.
④ Total of soluble and insoluble.

A470 Grade C Class 6 Mechanical Properties

Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
725~860	≥620	≥585	Longitudinal ≥18	Longitudinal ≥52	≥61

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!