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A551 Class CHT簡(jiǎn)介

牌號(hào) A551 Class CHT
對(duì)應(yīng)標(biāo)準(zhǔn) ASTM A551/A551M-2008(R2018)
鐵路和快速運(yùn)輸用碳鋼輪箍
Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications
歸類(lèi) 合金鋼
說(shuō)明 For heat-treated driving tires and switch-ing locomotives and tires for locomotive-trucks, tender-trucks, trailer and car wheels, and miscellaneous service..
A551 Class CHT 化學(xué)元素成分含量(%)
成分 C Si Mn P S Cr Ni Cu Mo Ti V Nb Al
最小值 0.7 0.15 0.6 - 0.005 - - - - - - - -
最大值 0.85 1 0.9 0.03 0.04 0.25 0.25 0.35 0.1 0.03 0.04 0.05 0.06
碳當(dāng)量計(jì)算
A551 Class CHT 機(jī)械性能
抗拉強(qiáng)度
σb
Mpa 		斷后伸長(zhǎng)率或延伸率
δ
% 		斷面收縮率
ψ
% 		硬度
HBW
≥965 ≥12 ≥24 285~331
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