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SUH31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH31

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CNS SUH31

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This page is mainly introduced the SUH31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUH31,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard heat resistant steel bar steel grade and chemical composition

Steel Garde:SUH31
Type:Stainless Steels
Country:China
Standard:CNS
Metallographic Structure:Austenite
Application:CNS standard heat resistant steel bar steel grade and chemical composition

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SUH310	CNS	China
SUH310	CNS	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.35	0.45
Si	1.50	2.50
Mn		0.60
P		0.040
S		0.030
Cr	14.00	16.00
Ni	13.00	15.00
Mo
N
W	2.00	3.00

Mechanical Properties

Tensile strength	073～287	σb/MPa
Yield Strength	101	σ 0.2 ≥/MPa
Elongation	94	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	221～507	-
HRC	30	-

Physical Properties

Thermal expansion	50-63	e-6/K
Thermal conductivity	40-24	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8400-5258	째C
Density	2025-4151	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)
SUH31 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