牌號(hào) | 817M40 |
對(duì)應(yīng)標(biāo)準(zhǔn) | BS 970-1-1983
英國標(biāo)準(zhǔn)規(guī)范機(jī)械和相關(guān)工程用鍛鋼 第一部分 碳鋼蜡镶,碳錳鋼商佛,合金鋼和不銹鋼的一般檢驗(yàn)試驗(yàn)程序和具體要求 British Standard Specification for Wrough steels for mechanical and allied engineering purposes Part 1. General inspection and testing procedures and specific requirements for carbon,carbon manganese,alloy and stainless steels |
歸類 | 合金鋼 |
說明 | ? A級(jí)鋼(A grade)抽减,對(duì)化學(xué)成分范圍有限制居绸,對(duì)機(jī)械性能或淬透性沒有規(guī)定腿箩。如:080A30 ? M級(jí)鋼(M grade)冷吏,對(duì)機(jī)械性能有要求男应。如:080M15 ? H級(jí)鋼(H grade)搞疗,對(duì)淬透性和化學(xué)成分有要求陌凳。如:080H36 |
參考符號(hào) | 抗拉強(qiáng)度/MPa |
P | 550~700 |
Q | 625~775 |
R | 700~850 |
S | 775~925 |
T | 850~1000 |
U | 925~1075 |
V | 1000~1150 |
W | 1075~1225 |
X | 1150~1300 |
Y | 1225~1375 |
Z | 1550min |