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

牌号	A551 Class DHT
對應标準	ASTM A551/A551M-2008(R2018) 鐵路和快速運輸用碳鋼輪箍 Standard Specification for Carbon Steel Tires for Railway and Rapid Transit Applications
歸類	合金鋼
說明	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 化學元素成分含量(%)

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

碳當量計算

A551 Class DHT 機械性能

抗拉強度 σ_b Mpa	斷後伸長率或延伸率 δ %	斷面收縮率 ψ %	硬度 HBW
≥1070	≥10	≥20	321~363

注：數據僅供參考！如有疑問，請填寫"我要糾錯"！