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HR207 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR207

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B.S. HR207

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This page is mainly introduced the HR207 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR207,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

Steel Garde:HR207
Type:Stainless Steels
Country:UK
Standard:B.S.

Standard Number:

ITEM	Standard Number	Descriptions
1	BS HR 207 (1973)	Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)
2	BS 2HR 207 (2009)	Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

Application:Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.08
Si		0.50
Mn		0.20
P
S		0.015
Cr	15.50	17.50
Ni	42.00	45.00
Mo	2.80	3.80
Co		2.00
Ti	1.10	1.30
Fe		remaining
Al	1.10	1.30
Cu		0.50
Zr	0.02	0.04
B		0.0050
Bi		0.0001
Pb		0.0015
Ag		0.0005

Mechanical Properties

Tensile strength	886～893	σb/MPa
Yield Strength	680	σ 0.2 ≥/MPa
Elongation	92	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	174～506	-
HRC	30	-

Physical Properties

Thermal expansion	89-37	e-6/K
Thermal conductivity	83-20	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8361-3973	째C
Density	7194-9730	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)
HR207 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