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301S21

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284S16 304S16
#301S21

Description

UK B.S. BS 1449-2, BS 5770-4, 301S21 Specialsteel Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 301S21
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 301S21 B.S. UK Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel

Chemical composition(mass fraction)(wt.%) of the 301S21

C Si Mn P S Cr Mo Ni
≤0.15 ≤1.00 ≤2.00 ≤0.045 ≤0.03 16.00 -18.00 ≤ ≥ 6.00 -8.00

Mechanical Properties of steel grade 301S21

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
369 (≥) 987 (≥) 13 32 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade 301S21

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
43 - -     0.23 -  
111 323 - 41.3 241   -  
791 - 22 32.2   331 344

Heat Treatment of steel grade 301S21

Heat treated : 1228°C - 1173°C

Technological Curves of steel grade 301S21

Cross Reference Table (Equivalent Grade) of 301S21

Grade Standard Country Application
301S21
301S21

Relevant standard of 301S21

BS 1449-2 Steel plate, sheet and strip. Specification for stainless and heat-resisting steel plate, sheet and strip BS-1449-2.pdf
BS 5770-4 Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel BS-5770-4.pdf
284S16 304S16
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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