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EU EN 990R 铅及铅合金 - 铅 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 990R / 990R
Category Grade Standard Region/Area Standard Content
Metals 990R EN 12659 EU 铅及铅合金 - 铅

Chemical composition(mass fraction)(wt.%) of the 990R

Element Min Max Similar

Mechanical Properties of steel grade 990R

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)
213 (≥) 845 (≥) 41 13 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade 990R

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
42 - -     0.22 -  
332 517 - 34.3 222   -  
631 - 42 31.2   114 242

Heat Treatment of steel grade 990R

Heat treated : 1683°C - 1637°C

Technological Curves of steel grade 990R

Cross Reference Table (Equivalent Grade) of 990R

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