A747 CB7Cu-1 J92180 17-4 - ASTM A747/A747M-2023 - H2ABC

中文版

Grade	A747 CB7Cu-1
USA UNS	J92180
Other Names
Corresponding Standard	ASTM A747/A747M-2023 Steel Castings, Stainless, Precipitation Hardening
Classification	Cast Steel

A747 CB7Cu-1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	N	Nb
Minimum Value	-	-	-	-	-	15.5	3.6	2.5	-	0.15
Maximum Value	0.07	1	0.7	0.035	0.03	17.7	4.6	3.2	0.05	0.35

A747 CB7Cu-1 Mechanical Properties

form	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Casting	Precipitation hardening H900	≥1170	≥1000	≥5	≥375
Casting	Precipitation hardening H925	≥1205	≥1035	≥5	≥375
Casting	Precipitation hardening H1025	≥1035	≥965	≥9	≥311
Casting	Precipitation hardening H1075	≥1000	≥795	≥9	≥277
Casting	Precipitation hardening H1100	≥930	≥760	≥9	≥269
Casting	Precipitation hardening H1150	≥860	≥670	≥10	≥269
Casting	Precipitation hardening H1150M	-	-	-	≤310
Casting	Precipitation hardening H1150 DBL		-	-	≤310

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