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2Cr21Ni12N chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2Cr21Ni12N

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GB 2Cr21Ni12N

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This page is mainly introduced the 2Cr21Ni12N chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2Cr21Ni12N,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
2Cr21Ni12N

Steel Garde:2Cr21Ni12N
Type:Stainless Steels
Country:China
Standard:GB

Standard Number:

ITEM	Standard Number	Descriptions
1	GB/T 1221 (1992)	Heat-resisting steel bars
2	GB/T 12773 (1991)	Valve steel bars for internal combustion engines - Technical requirements

Metallographic Structure:Austenite
Application:Heat-resisting steel bars

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.15	0.28
Si	0.75	1.25
Mn	1.00	1.60
P		0.35
S		0.03
Ni	10.50	12.50
Cr	20.00	22.00
N	0.15	0.30

Mechanical Properties

Tensile strength	482～511	σb/MPa
Yield Strength	237	σ 0.2 ≥/MPa
Elongation	28	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	267～141	-
HRC	30	-

Physical Properties

Thermal expansion	92-24	e-6/K
Thermal conductivity	88-54	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4355-2386	째C
Density	8397-5172	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)
2Cr21Ni12N 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