A551 Class DHT - ASTM A551/A551M-2008(R2018)

牌号	A551 Class DHT
对应标准	ASTM A551/A551M-2008(R2018) 铁路和快速运输用碳钢轮箍 Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications
归类	合金钢
说明	For heat-treated driving tires for locomo-tives with light braking conditions, heavily loaded trailer tires, and rapid transit wheels where off-tread brakes are employed.

A551 Class DHT 化学元素成分含量(%)

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

碳当量计算

A551 Class DHT 机械性能

抗拉强度 σ_b Mpa	断后伸长率或延伸率 δ %	断面收缩率 ψ %	硬度 HBW
≥1070	≥10	≥20	321~363

注：数据仅供参考！如有疑问，请填写"我要纠错"！