07Cr18Ni11Nb S34779 - GB /T 713.7-2023

Grade	07Cr18Ni11Nb
China ISC	S34779
Corresponding Standard	GB /T 713.7-2023 Steel Plate,Sheet and Strip for Pressure Equipments Part7:Stainless Steel and Heat Resisting Steel
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance
Density	8.03 g/cm³

07Cr18Ni11Nb Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	0.04	-	-	-	-	17	9
Maximum Value	0.1	0.75	2	0.035	0.015	19	12

07Cr18Ni11Nb Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
Solutioon treatment	≥515	≥205	≥40	HBW: ≤201 HRB: ≤92 HV: ≤210	-

1 Approximate Comparison Table Austenitic Stainless Steel

China		Japan	United States		International Organization for Standardization		France	European Standard
GB	ISC	JIS	ASTM/AISI	UNS	ISO	Numerical Grade	NF EN/NF	EN	Numerical Grade
07Cr18Ni11Nb (1Cr19Ni11Nb)	S34779	SUS347H	347H	S34709	X7CrNiNb18-10	4912-347-09-I	Z2CND17-11 Z2CND18-13 Z8CNNb18-10	X7CrNiNb18-10	1.4912

2 Approximate Comparison Table Seamless Steel Tubes and Pipes for High Pressure Boiler

07Cr18Ni11Nb Corresponding Standards(Same grade name, different standards)

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