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UK B.S. BS 970-1, 030 A 04 Specialsteel Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 030 A 04
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 030 A 04 B.S. UK Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels

Chemical composition(mass fraction)(wt.%) of the 030 A 04

C Si Mn P S Cr Ni Mo
≤0.0800 0.2000 -0.0500 0.2000 -0.2000 ≤0.0500 ≤0.0500 ≤0.3000 ≤0.4000 ≤0.1500

Mechanical Properties of steel grade 030 A 04

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)
941 (≥) 181 (≥) 41 33 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade 030 A 04

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
24 - -     0.32 -  
834 819 - 24.3 122   -  
315 - 14 44.2   224 121

Heat Treatment of steel grade 030 A 04

Heat treated : 1967°C - 1653°C

Technological Curves of steel grade 030 A 04

Relevant standard of 030 A 04

BS 970-1 Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels BS-970-1.pdf

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