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R250

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Germany DIN R250 铜及铜合金 - 水和气体在烧结和加热应用的无缝圆铜管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: R250 / R250
Category Grade Standard Region/Area Standard Content
Metals R250 DIN EN 1057 Germany 铜及铜合金 - 水和气体在烧结和加热应用的无缝圆铜管

Chemical composition(mass fraction)(wt.%) of the R250

Element Min Max Similar

Mechanical Properties of steel grade R250

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)
884 (≥) 785 (≥) 31 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade R250

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
33 - -     0.14 -  
796 141 - 42.3 323   -  
961 - 24 13.2   121 423

Heat Treatment of steel grade R250

Heat treated : 1899°C - 1424°C

Technological Curves of steel grade R250

Cross Reference Table (Equivalent Grade) of R250

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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