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HR51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR51

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B.S. HR51

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This page is mainly introduced the HR51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HR51,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for heat-resisting alloy billets, bars, forgings and parts (Ni 25.5, Cr 14.7, Ti 2, Mn 1.5, Mo 1.2, Si 0.7, V 0.3, Fe remainder)

Steel Garde:HR51
Type:Stainless Steels
Country:UK
Standard:B.S.

Standard Number:

ITEM	Standard Number	Descriptions
1	BS 2HR 51 (2010)	Specification for high expansion heat-resisting steel billets, bars, forgings and parts (Ni 25.5, Cr 15, Ti 2, Mn 1.5, Mo 1.25, Si 0.7, V 0.3)(Solution treated at 980 °C)
2	BS HR 51	Specification for heat-resisting alloy billets, bars, forgings and parts (Ni 25.5, Cr 14.7, Ti 2, Mn 1.5, Mo 1.2, Si 0.7, V 0.3, Fe remainder)

Application:Specification for heat-resisting alloy billets, bars, forgings and parts (Ni 25.5, Cr 14.7, Ti 2, Mn 1.5, Mo 1.2, Si 0.7, V 0.3, Fe remainder)

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.020
S		0.015
Cr	13.50	16.00
Ni	24.00	27.00
Mo	1.00	1.50
Co
Ti	1.90	2.30
Fe		remaining
Al		0.35
V	0.10	0.50
B	0.0030	0.0100
Pb		0.005

Mechanical Properties

Tensile strength	427～177	σb/MPa
Yield Strength	494	σ 0.2 ≥/MPa
Elongation	14	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	172～557	-
HRC	30	-

Physical Properties

Thermal expansion	89-78	e-6/K
Thermal conductivity	91-35	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0411-9973	째C
Density	5537-0333	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)
HR51 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