301 S 81

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England B.S. 301S81 Specification for stainless steel wire for mechanical springs and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 301S81 / 301 S 81

Category	Grade	Standard	Region/Area	Standard Content
Metals	301 S 81	BS 2056	England	Specification for stainless steel wire for mechanical springs

Chemical composition(mass fraction)(wt.%) of the 301 S 81

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade 301 S 81

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
897 (≥)	844 (≥)	41	24	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	322

Physical Properties of steel grade 301 S 81

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
31	-	-			0.33	-
754	575	-	33.3	241		-
933	-	23	13.2			142	441

Heat Treatment of steel grade 301 S 81

Heat treated : 1138°C - 1784°C

Technological Curves of steel grade 301 S 81

No Curve

Cross Reference Table (Equivalent Grade) of 301 S 81

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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