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1Cr17Ni7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1Cr17Ni7

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GB 1Cr17Ni7

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This page is mainly introduced the 1Cr17Ni7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1Cr17Ni7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Austenitic stainless steel. Grade 1Cr17Ni7 was replaced by new designation 12Cr17Ni7 according to GB/T 20878 (2007)

Steel Garde:1Cr17Ni7
Type:Stainless Steels
Country:China
Standard:GB

Standard Number:

ITEM	Standard Number	Descriptions
1	GB/T 1220 (1992)	Stainless steel bars
2	GB/T 3280 (2007)	Cold rolled stainless steel sheets and plates
3	GB/T 4231 (1993)	Cold rolled stainless steel strips for springs
4	GB/T 4239 (1991)	Cold rolled stainless steel and heat resisting steel strips

Metallographic Structure:Austenite
Application:High strength after cold forming. Used in railway vehicle, conveyor belt, bolt and nut, etc

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si		1.00
Mn		2.00
P		0.035
S		0.030
Ni	6.00	8.00
Cr	16.00	18.00

Mechanical Properties

Tensile strength	453～576	σb/MPa
Yield Strength	175	σ 0.2 ≥/MPa
Elongation	29	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	985～858	-
HRC	30	-

Physical Properties

Thermal expansion	23-40	e-6/K
Thermal conductivity	36-09	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3976-3908	째C
Density	2596-9790	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
1Cr17Ni7 Stainless Steels	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk