Chinese
Available 24/7 at sales@steel-grades.com
SGSG
Post Your Request Now
Toggle menu

A20404

Favorite Datasheet
A20374 A30304
#A20404

Description

China GBT A20404 China structural steel and alloy steel and A20404 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: A20404
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel A20404 GBT China China structural steel and alloy steel
U40252
U40302
U40352
U40402
U40452
L20158
U41252
U41302
U41352
A20374

Chemical composition(mass fraction)(wt.%) of the A20404

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.38-0.45 Max 0.30 0.60-0.90 0.035 0.035 0.90-1.20 — —

Mechanical Properties of steel grade A20404

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)
839 (≥) 873 (≥) 22 42 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade A20404

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
31 - -     0.11 -  
963 951 - 42.3 131   -  
177 - 34 14.2   122 212

Heat Treatment of steel grade A20404

Heat treated : 1936°C - 1263°C

Technological Curves of steel grade A20404

Cross Reference Table (Equivalent Grade) of A20404

Grade Standard Country Application
A20404 GBT China China structural steel and alloy steel
A20374 A30304
Available Suppliers
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...

Rfq.: sales@longhaisteel.com
  • Do you supply this A20404?
  • List your company on S&G now? Join
  • Non-paying users only
Top