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4890

Favorite Datasheet

America SAE 4890 Copper-Beryllium Alloy Castings 97Cu - 2.1Be - 0.52Co - 0.28Si Solution Heat Treated (TB00) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 4890 / 4890
Category Grade Standard Region/Area Standard Content
Metals 4890 SAE AMS 4890C America Copper-Beryllium Alloy Castings 97Cu - 2.1Be - 0.52Co - 0.28Si Solution Heat Treated (TB00)

Chemical composition(mass fraction)(wt.%) of the 4890

Element Min Max Similar
Zn - 0.1000 -
Sn - 0.1000 -
Si 0.2000 0.3500 -
Pb - 0.0200 -
Other 99.5000 - -
Ni - 0.2000 -
Fe - 0.2500 -
Cu - - -
Cr - 0.1000 -
Co 0.3500 0.7000 -
Be 1.9000 2.2500 -
Al - 0.1500 -

Mechanical Properties of steel grade 4890

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)
438 (≥) 932 (≥) 32 24 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade 4890

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
23 - -     0.13 -  
986 433 - 41.3 222   -  
931 - 21 43.2   123 212

Heat Treatment of steel grade 4890

Heat treated : 1817°C - 1488°C

Technological Curves of steel grade 4890

Cross Reference Table (Equivalent Grade) of 4890

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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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...

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