微信公众号随时随地查标准

QQ交流1群(已满)

QQ群标准在线咨询2

QQ交流2群

购买标准后,可去我的标准下载或阅读

ASTM A101-04(2019) Standard Specification for Ferrochromium Active 发布日期 :  实施日期 : 

定价: 515 加购物车

在线阅读 收 藏
ASTM A102-04(2019) Standard Specification for Ferrovanadium Active 发布日期 :  实施日期 : 

定价: 515 加购物车

在线阅读 收 藏
ASTM A144-04(2019) Standard Specification for Ferrotungsten Active 发布日期 :  实施日期 : 

定价: 571 加购物车

在线阅读 收 藏

This specification deals with the general requirements for round carbon spring steel wire coils intended for the manufacture of mechanical springs and wire forms that are heat treated after fabrication. Heat treatment processes include austenitizing, quenching and tempering. The steel shall be made by the open-hearth, basic-oxygen, or electric-furnace process and the wire shall be thermally treated, or thermally treated and drawn. Product analysis, wrap testing, and chemical analysis shall be performed and materials shall conform to the requirements for chemical composition, metallurgical structure and mechanical properties such as tensile strength. Packaging of the coils of wire shall be by agreement between the manufacturer and the purchaser wherein the agreement shall include coil dimensions and weights, while marking and bar coding for identification shall be by tag securely attached to each coil of wire.1.1 This specification covers round carbon spring steel wire in coils intended for the manufacture of mechanical springs and wire forms that are heat treated (austenitized, quenched, and tempered) after fabrication.1.2 The values stated in inch-pound units are to be regarded as the standard.

定价: 515 加购物车

在线阅读 收 藏

定价: 927 加购物车

在线阅读 收 藏

定价: 515 加购物车

在线阅读 收 藏

定价: 571 加购物车

在线阅读 收 藏

This PDF includes Update No. 1 Preface This is the fourth edition of CSA A440.2/A440.3, Energy performance of windows and other fenestration systems/User guide to CSA A440.2-04, Energy performance of windows and other fenestration systems. It superse

定价: 1001元 / 折扣价: 851

在线阅读 收 藏

定价: 646 加购物车

在线阅读 收 藏
526 条记录,每页 15 条,当前第 1 / 36 页 第一页 | 上一页 | 下一页 | 最末页  |     转到第   页