Y15Pb的含碳量比12L14高，严格讲国内没有等同牌号。ISO标准的12SMnPb35与之匹配。
Material Number
~1.0737

Steel group
Structural and constructional steels

Symbol
12L14 (SAE); 12L14 (AISI); G12144 (UNS); A 29 (12L14) (ASTM); A 108 (12L14) (ASTM); A 510 (12L14) (ASTM); A 519 (12L14) (ASTM); A 521 (12L14) (ASTM); A 576 (12L14) (ASTM); A 711 (12L14) (ASTM)