070m20 2 BS 970-1-1983 英国标准规范机械和相关工程用锻钢 第一部分 碳钢，碳锰钢，合金钢和不锈钢的一般检验试验程序和具体要求

070M20: 对应标准: BS 970-1-1983 英国标准规范机械和相关工程用锻钢 第一部分 碳钢，碳锰钢，合金钢和不锈钢的一般检验试验程序和具体要求 British Standard Specification for Wrough steels for mechanical and allied engineering purposes Part 1.

2013年9月9日 · 正确写法应为：bs970 070m20，为英国的牌号，含碳量要求为0.16%-0.24%，近似对应中国的20号钢（20号钢得含碳量要求为0.17%-0.24%），一定要选择中国牌号的话就一定是20号钢了。

EN3B (070M20) is suitable in applications where heavy stresses and heat treatment are not involved. EN3B offers good machinability but poor hardenability.

070M20 (EN3A) is a low carbon, well-balanced unalloyed engineering steel suited where heavy stresses and heat treatment are not applied. It is a bright drawn and turned mild steel offering excellent machinability. The “M” in the designation indicates that the steel has been fully killed (i.e., all oxygen has been removed from the steel ...

Chemical composition and properties of european equivalents (EN) for 070M20 (England, BS ): C22E (1.1151) , C22 (1.0402) , 070M20 (England, BS ) - European (EU, EN) and wordwide Steel equivalent grades

EN3B (070M20) Engineering Steel is suitable for low stress engineering applications and can be case hardened. Offering good machining and welding characteristics, EN3B is intended for general engineering us

This page is mainly introduced the B.S. 070 M 20 Datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc.

070M20 grade steel is a general purpose mild steel for welded or riveted structures, forgings, machined parts, hot pressing, etc. This steel will withstand a moderate amount of cold deformation and only offers low strength, but good machinability. 10mm - 860mm Dia.

EN3B, also known as 070m20, is available from stock in rounds, flats, squares and hexagons. EN3B is a mild steel suitable for general engineering use and offers good machining and welding characteristics. Used in low stress engineering applications, can be case hardened. AISI 1020. Material available ex stock, delivered nationwide next day.