Available 24/7 at contact@steel-grades.com

EU EN 8 紧固件机械性能 - 第2部分:规定保证载荷值的螺母 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 8 / 8
Category Grade Standard Region/Area Standard Content
Metals 8 EN 20898-2 EU 紧固件机械性能 - 第2部分:规定保证载荷值的螺母

Chemical composition(mass fraction)(wt.%) of the 8

Element Min Max Similar
S - 0.1500 -
P - 0.0600 -
Mn 0.2500 - -
C - 0.5800 -
S - 0.1500 -
P - 0.0600 -
Mn 0.2500 - -
C - 0.5800 -

Mechanical Properties of steel grade 8

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)
817 (≥) 212 (≥) 42 24 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade 8

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 -  
973 266 - 21.3 341   -  
184 - 42 33.2   223 132

Heat Treatment of steel grade 8

Heat treated : 1915°C - 1618°C

Technological Curves of steel grade 8

Cross Reference Table (Equivalent Grade) of 8

Available Suppliers

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 8?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top