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3Cr18Mn12Si2N chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 3Cr18Mn12Si2N

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GB 3Cr18Mn12Si2N

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This page is mainly introduced the 3Cr18Mn12Si2N chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 3Cr18Mn12Si2N,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
3Cr18Mn12Si2N

Steel Garde:3Cr18Mn12Si2N
Type:Stainless Steels
Country:China
Standard:GB
Standard Number:

ITEM Standard Number Descriptions

1 GB/T 1221 (1992) Heat-resisting steel bars
Metallographic Structure:Austenite
Application:Heat-resisting steel bars

ITEM	Standard Number	Descriptions
1	GB/T 1221 (1992)	Heat-resisting steel bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
0Cr18Ni9	GB	China
0Cr18Ni9Cu3	GB	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.22	0.30
Si	1.40	2.20
Mn	10.50	12.50
P		0.35
S		0.03
Cr	17.00	19.00
N	0.22	0.33

Mechanical Properties

Tensile strength	147～991	σb/MPa
Yield Strength	745	σ 0.2 ≥/MPa
Elongation	41	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	834～204	-
HRC	30	-

Physical Properties

Thermal expansion	10-31	e-6/K
Thermal conductivity	78-78	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2428-1380	째C
Density	3836-4913	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)
3Cr18Mn12Si2N 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