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HR6 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR6

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B.S. HR6

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This page is mainly introduced the HR6 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR6,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for nickel-chromium- iron-molybdenum-cobalt-tungsten heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)

Steel Garde:HR6
Type:Stainless Steels
Country:UK
Standard:B.S.

Standard Number:

ITEM	Standard Number	Descriptions
1	BS HR 6 (1972)	Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)
2	BS 2HR 6 (2010)	Specification for nickel-chromium- iron-molybdenum-cobalt-tungsten heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)

Application:Specification for nickel-chromium- iron-molybdenum-cobalt-tungsten heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.05	0.15
Si		1.00
Mn		1.00
P		0.015
S		0.015
Cr	20.50	23.00
Ni		remaining
Mo	8.00	10.00
Co	0.50	2.50
Ti
Fe	17.00	20.00
B		0.010
W	0.20	1.00
Pb		0.0050

Mechanical Properties

Tensile strength	772～843	σb/MPa
Yield Strength	054	σ 0.2 ≥/MPa
Elongation	22	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	873～558	-
HRC	30	-

Physical Properties

Thermal expansion	48-85	e-6/K
Thermal conductivity	41-25	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5298-5359	째C
Density	7400-5451	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)
HR6 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