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CMA1

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England B.S. CMA1 Specification for copper alloy ingots and copper alloy and high conductivity copper castings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CMA1 / CMA1
Category Grade Standard Region/Area Standard Content
Metals CMA1 BS 1400 England Specification for copper alloy ingots and copper alloy and high conductivity copper castings

Chemical composition(mass fraction)(wt.%) of the CMA1

Element Min Max Similar
Zn - 1.0000 -
Sn - 0.5000 -
Si - 0.1500 -
Pb - 0.0500 -
P - 0.0500 -
Ni 1.5000 4.5000 -
Mn 11.0000 15.0000 -
Fe 2.0000 4.0000 -
Cu - - -
Al 7.0000 8.5000 -

Mechanical Properties of steel grade CMA1

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)
343 (≥) 278 (≥) 42 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade CMA1

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 - -     0.12 -  
432 288 - 42.3 111   -  
688 - 11 14.2   422 222

Heat Treatment of steel grade CMA1

Heat treated : 1948°C - 1181°C

Technological Curves of steel grade CMA1

Cross Reference Table (Equivalent Grade) of CMA1

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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