BS970 080M40 material or En8 steel equivalent to European EN (German DIN EN, French NF EN), ISO, Japanese JIS and Chinese GB standard (for reference).

• 标记中牌号尾缀字母P、Q、R、S、T、U、V、W、X、Y、Z分别对应淬火回火材料不同的抗拉强度范围。 • 正火温度830~860°C；淬火温度830~860°C，淬火介质油，回火温度550~660°C。 W-Nr. 注：数据仅供参考！ 如有疑问，请填写"我要纠错"！

Complete BS 970 EN8 carbon steel definition, steel properties, chemical composition. Check in all detailed data of EN8 carbon steel / 080M40 steel material.

080m40是一种钢材。 强度较高，可切削性良好，冷变形能力中等，焊接性差，无回火脆性，淬透性低，易生水淬裂纹，多在调质或正火态使用，两者综合性能相近，表面淬火后可用于制造承受较大应力件。

EN8 engineering steel is an unalloyed carbon steel with reasonable tensile strength. It can be flame or induction hardened and is a readily machinable material. When heat treated, EN8 offers moderate wear resistance. Commercial applications for this engineering material include:

080M40 is a popular grade of through-hardening medium carbon steel, which is readily machinable in any condition. 080M40 properties make it suitable for the manufacture of parts such as general-purpose axles and shafts, gears, bolts and studs

080m40属于英国标准碳素结构钢，执行标准：bs 970-3 1991 . 080m40强度较高，塑性和韧性尚好，用于制作承受负荷较大的小截面调质件和应力较小的大型正火零件，以及对心部强度要求不高的表面淬火零件，如梢子,导柱，表针等部件。 080m40化学成分如下图：

EN8 (080M40) is an unalloyed carbon steel with reasonable tensile strength. It can be flame or induction hardened and is a readily machinable material. When heat treated, EN8 offers moderate wear resistance.

2023年12月21日 · 080m40是一种中碳钢，主要成分为碳、铁和少量合金元素。 其化学成分在国际标准中有详细的规定，一般来说，其碳含量在0.36-0.44%之间，还含有一定量的锰、硅、磷和硫等元素。

080M40 grade steel is a medium carbon steel offering moderate tensile strengths. The material is capable of through hardening by quenching and tempering on limited sections, but is more commonly supplied in the untreated or normalised condition. Machinability similar to that of mild steel can be expected, however weldability is reduced. Size Range