040 A 04

This page provides BS 970-1, 040 A 04 datasheet, 040 A 04 mechanical properties, chemical element 040 A 04, technical specifications of 040 A 04 steel material properties. 040 A 04 performance specifications.

Category Class Grade Standard Country Application
Steel GradesSpecialsteel 040 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
Datasheet for:Steel Grades:Specialsteel:040 A 04

Chemical composition(mass fraction)(wt.%) of the 040 A 04

Elements Min.(≥) Max.(≤)
C - 0.0800
Si 0.2000 0.0500
Mn 0.3000 0.5000
P - 0.0500
S - 0.0500
Cr 16.5000 18.5000
Ni 11.0000 11.0000
Mo 2.2500 2.2500

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade 040 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)
656 (≥) 617 (≥) 23 14 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 333
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
23 - -     0.12 -  
471 686 - 11.3 242   -  
955 - 14 24.2   213 124
Heat treated : 1753°C - 1624°C
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
040 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
040 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
Relevant standard
Standard No. Description Download
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
Contact Suppliers with your enquiries for 040 A 04 any of the shape and size.

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BS 970-1, 040 A 04 can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
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