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牌號
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30CrNi2MoVA合金結(jié)構(gòu)鋼絲
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中國ISC
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A51303
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對應(yīng)標(biāo)準(zhǔn)
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GB /T 3079-1993
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合金結(jié)構(gòu)鋼絲
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Alloy structure steels wires
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歸類
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合金鋼
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30CrNi2MoVA 化學(xué)元素成分含量(%)
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成分
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C
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Si
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Mn
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P
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S
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Cr
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Ni
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Cu
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Mo
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V
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最小值
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0.26
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0.17
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0.3
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-
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-
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0.6
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2
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-
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0.2
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0.15
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最大值
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0.33
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0.37
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0.6
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0.025
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0.025
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0.9
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2.5
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0.25
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0.3
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0.3
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特級優(yōu)質(zhì)鋼 P≤0.025%，S≤0.015%，此時在鋼號后加E。
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GB 30CrNi2MoVA GB/T 3079 Mechanical
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Yield
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Tensile
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Impact
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Elongation
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Reduction in cross section on fracture
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As-Heat-Treated Condition
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Brinell hardness (HBW)
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Rp0.2 (MPa)
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Rm (MPa)
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KV/Ku (J)
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A (%)
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Z (%)
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762 (≥)
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577 (≥)
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21
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44
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32
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Solution and Aging, Annealing, Ausaging, Q+T,etc
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322
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GB 30CrNi2MoVA GB/T 3079 Physical
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GB 30Cr Ni2Mo VA GB/T 3079的物理性能參數(shù)主要由密度、泊松比、熱導(dǎo)率、比熱容、熱膨脹系數(shù)、彈性模量、電阻值等表示。
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Temperature
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Modulus of elasticity
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Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and
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Thermal conductivity
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Specific thermal capacity
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Specific electrical resistivity
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Density
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Poisson’s coefficient, ν
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(°C)
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(GPa)
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(W/m·°C)
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(J/kg·°C)
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(Ω mm2/m)
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(kg/dm3)
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21
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-
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-
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0.21
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-
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616
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224
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-
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14.3
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234
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-
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574
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-
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24
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13.2
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444
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133
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GB 30CrNi2MoVA GB/T 3079 Processing Service
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