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teels use boron as a hardening agent. The melting and refining process, together with thermomechanical treatment by controlled hot rolling, allow ArcelorMittal quenchable boron steel to attain a remarkable degree of hardness and a very uniform microstructure, resulting in excellent mechanical loading performance afte.

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2024年10月30日 · 型号：A554-21 标准规格 焊接不锈钢机械管¹ 本标准以固定名称 A554 发布;名称后面的数字表示最初采用的年份，或者在修订的情况下，表示最后一次修订的年份。 括号中的数字表示上次重新批准的年份。 上标 epsilon（e） 表示自上次修订或重新批准以来的编辑更改。 1. 范围* 1.1 本规范涵盖焊接奥氏体、铁素体和奥氏体-铁素体双相不锈钢机械管，用于装饰、结构、排气和其他需要外观、机械性能或耐腐蚀性的应用。 涵盖的等级列在 ... 该国际标准是根据国 …

2024年5月6日 · 内容提示： 1这一国际标准是根据《国家原则决定》中确立的国际公认的标准化原则制定的制定由世界贸易组织技术性贸易壁垒（ TBT ）委员会发布的国际标准、指南和建议。 名称：A564/A564M A564/A564M−19a 19a标准规范热轧和冷加工老化硬化不锈钢棒和形状 1 1本标准按固定名称A564/A564M发布；该名称后的数字表示原始采用年份，或上次修订年份。 括号中的数字表示上次重新批准的年份。 上标（‘）表示自上次修订或重新批准以来的编辑更改。 本标 …

2021年1月20日 · Such requirements may include but are notlimited to the following:3.1.1 Quantity (weight or number of pieces),3.1.2 Type or UNS designation (Table 1),3.1.3 Specif i c melt type when required,3.1.4 Heat treated condition (5.1),1 'This specif i cation is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and ...

1.1 This specification covers welded austenitic, ferritic, and austenitic-ferritic duplex stainless steel mechanical tubing intended for use in ornamental, structural, exhaust, and other applications where appearance, mechanical properties, or cor-rosion resistance is needed. The grades covered are listed in. Table 1.

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Scope* 1.1 This specification covers welded stainless steel tubing for mechanical applications where appearance, mechanical properties, or corrosion resistance is needed.

ASTM's steel standards are instrumental in classifying, evaluating, and specifying the material, chemical, mechanical, and metallurgical properties of the different types of steels, which are primarily used in the production of mechanical components, industrial parts, and construction elements, as well as other accessories related to them.