材料SB25和S45的性能差別
S45 為匈牙利鋼號,日本有
S45C 相當於我國45#鋼,優質碳素結構鋼,價格壹般:
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Symbol : S 45 C
Material number : 1.0503, 1.1191, 1.1193
Steel group : Structural and constructional steels
Standards :
G 4051 (1979): Carbon steels
含碳量0.42%~0.48%
Mn 0.6%~0.9%
Si 0.15%~0.35%
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SB25 查不到,
但有SB42、SB46,為低碳鋼,適合做壓力容器。
含碳量<0.24%
Mn<0.9%
也許相當於我國A3(Q235A)鋼