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2S.144

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2S.143 2S.155
#2S-144

Description

UK B.S. BS S 144, 2S.144 Specialsteel Specification for chromium-nickel-copper-molybdenum corrosion resisting steel (precipitation hardening) billets, bars, forgings and parts (1130-1330 MPa) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 2S.144
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 2S.144 B.S. UK Specification for chromium-nickel-copper-molybdenum corrosion resisting steel (precipitation hardening) billets, bars, forgings and parts (1130-1330 MPa)

Chemical composition(mass fraction)(wt.%) of the 2S.144

C Si Mn P S Cr Ni Mo Nb Cu
≤0.07 ≤0.60 ≤1.00 ≤0.035 ≤0.025 13.20 -14.70 5.00 -5.80 1.20 -2.00 0.10 -0.40 1.20 -2.00

Mechanical Properties of steel grade 2S.144

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)
228 (≥) 273 (≥) 13 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade 2S.144

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
13 - -     0.33 -  
315 513 - 24.3 224   -  
347 - 41 31.2   231 131

Heat Treatment of steel grade 2S.144

Heat treated : 1537°C - 1837°C

Technological Curves of steel grade 2S.144

Relevant standard of 2S.144

BS S 144 Specification for chromium-nickel-copper-molybdenum corrosion resisting steel (precipitation hardening) billets, bars, forgings and parts (1130-1330 MPa) BS-S-144.pdf
2S.143 2S.155
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