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2Cr25Ni20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2Cr25Ni20

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GB 2Cr25Ni20

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This page is mainly introduced the 2Cr25Ni20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2Cr25Ni20,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
2Cr25Ni20

Steel Garde:2Cr25Ni20
Type:Stainless Steels
Country:China
Standard:GB

Standard Number:

ITEM	Standard Number	Descriptions
1	GB 13296 (2007)	Seamless stainless steel tubes for boiler and heat exchanger
2	GB 4238 (1992)	Heat-resisting steel sheets and plates
3	GB/T 1221 (1992)	Heat-resisting steel bars
4	JB/T 6398 (2006)	Heavy stainless acid resistant and heat resistant steel forgings

Metallographic Structure:Austenite
Application:Seamless stainless steel tubes for boiler and heat exchanger

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.25
Si		1.50
Mn		2.00
P		0.35
S		0.03
Ni	19.00	22.00
Cr	24.00	26.00

Mechanical Properties

Tensile strength	710～620	σb/MPa
Yield Strength	409	σ 0.2 ≥/MPa
Elongation	52	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	065～428	-
HRC	30	-

Physical Properties

Thermal expansion	84-66	e-6/K
Thermal conductivity	50-56	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2248-1380	째C
Density	4252-8666	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)
2Cr25Ni20 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