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H70MΦB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of H70MΦB

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GOST H70MΦB

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This page is mainly introduced the H70MΦB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of H70MΦB,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Russia GOCT standard deformation of high temperature alloy grades and chemical composition

Steel Garde:H70MΦB
Type:Stainless Steels
Country:Russia
Standard:GOST
Application:Russia GOCT standard deformation of high temperature alloy grades and chemical composition

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.02
Si		0.10
Mn		0.50
P
S
Cr		0.30
Ni		remaining
Mo	25.00	27.00
Al
Ti		0.15
Fe		0.80
V	1.40	1.70
W	0.10	0.45

Mechanical Properties

Tensile strength	271～417	σb/MPa
Yield Strength	871	σ 0.2 ≥/MPa
Elongation	76	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	876～557	-
HRC	30	-

Physical Properties

Thermal expansion	22-27	e-6/K
Thermal conductivity	45-77	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2939-1979	째C
Density	8401-4435	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)
H70MΦB 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