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S.129

Favorite Datasheet
S.127 S.150
#S-129

Description

UK B.S. BS 2S 129, S.129 Specialsteel Specification for 18/9 chromium-nickel corrosion-resisting steel (titanium stabilized) billets, bars, forgings and parts (540 MPa: limiting ruling section 150 mm) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: S.129
Category Class Grade Standard Country Application
Steel GradesSpecialsteel S.129 B.S. UK Specification for 18/9 chromium-nickel corrosion-resisting steel (titanium stabilized) billets, bars, forgings and parts (540 MPa: limiting ruling section 150 mm)

Chemical composition(mass fraction)(wt.%) of the S.129

C Si Mn P S Cr Ni Mo Ti
≤0.12 0.20 -1.00 0.50 -2.00 ≤0.035 ≤0.025 17.00 -19.00 8.00 -11.00 ≤ ≥ ≤5×C

Mechanical Properties of steel grade S.129

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)
726 (≥) 757 (≥) 42 13 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade S.129

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
12 - -     0.34 -  
586 573 - 34.3 134   -  
464 - 24 12.2   312 322

Heat Treatment of steel grade S.129

Heat treated : 1523°C - 1553°C

Technological Curves of steel grade S.129

Relevant standard of S.129

BS 2S 129 Specification for 18/9 chromium-nickel corrosion-resisting steel (titanium stabilized) billets, bars, forgings and parts (540 MPa: limiting ruling section 150 mm) BS-2S-129.pdf
S.127 S.150
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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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