This standard specifies classification and designation, ordering information, dimensions, shape, technical requirements, test methods, inspection rules, packaging, marking and quality certificate for high -carbon chromium bearing steel.
This standard is applicable to high-carbon chromium bearing steel in the form of hot-rolled and forged round bars, hot-rolled round wire rods as well as cold drawn round bars(in straight lengths or in coils) to be used in the manufacture of bearing rings and rolling bodies (hereinafter referred to as steel products).
By agreement between the manufacturer and purchaser, this standard may be applied to steel products or billets of other forms and dimensions, with specific requirements indicated in the contract.
本标准规定了高碳铬轴承钢大型锻制钢棒的订货内容、尺寸、外形、重量、技术要求、试验方法、检验规则以及包装、标志及质量证明书。本标准适用于制作轴承套圈用公称直径400 mm~1 000 mm高碳铬轴承钢锻制钢棒(以下简称钢材)。
本标准规定了GB/T 15574中所包括的钢及钢产品(铸钢和粉末冶金制品除外)交货一般技术要求。当产品标准中的规定或合同中的协议与本标准中的规定不一致时,应以产品标准的规定或合同的协议为准。注: 本标准须与其他技术标准配套使用,不能单独用于订货。
本标准规定了按照生产工序、外形、尺寸和表面状态对钢产品进行分类的基本准则。本标准适用于按照生产工序、外形、尺寸和表面状态对钢产品进行分类。
本标准规定了优质碳素结构钢棒材的分类与代号,订货内容,尺寸、外形及重量,技术要求,试验方法,检验规则,包装、标志和质量证明书。 本标准适用于公称直径或厚度不大于250 mm热轧和锻制优质碳素结构钢棒材。经供需双方协商,也可供应公称直径或厚度大于250 mm热轧和锻制优质碳素结构钢棒材(以下简称钢棒)。 本标准所规定牌号及化学成分也适用于钢锭、钢坯、其他截面的钢材及其制品。
This standard specifies the classification and designation, ordering information, dimensions, shape, mass, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of quality carbon structure steel bars.
This standard applies to hotrolled and forged quality carbon structure steel bars with nominal diameter or thickness not greater than 250 mm.Quality carbon structure steel bars (hereinafter referred to as steel bars) with nominal diameter or thickness greater than 250 mm may also be supplied upon agreement between the purchaser and the manufacturer.
The steel grades and chemical composition specified in this standard also apply to steel ingots, billets, blooms, steel products with other crosssections and their products.
本标准规定了合金结构钢的分类与代号、订货内容、尺寸、外形、重量及允许偏差、技术要求、试验方法、检验规则、包装、标志和质量证明书。本标准适用于公称直径或厚度不大于250 mm的热轧和锻制合金结构钢棒材。经供需双方协商,也可供应公称直径或厚度大于250 mm热轧和锻制合金结构钢棒材(以下简称钢棒)。本标准所规定牌号及化学成分亦适用于钢锭、钢坯及其制品。
This standard specifies the classification and designation,ordering information,dimensions,shape,mass and tolerances,technical requirements,test methods,inspection rules,packaging,marking and quality certificate of alloy structure steels.
本标准规定了大型锻件用优质碳素结构钢和合金结构钢的分类与代号、订货内容、尺寸、外形、重量及允许偏差、技术要求、试验方法、检验规则、包装、标志及质量证明书。本标准适用于一般用途用公称直径大于250 mm~1 500 mm锻制圆钢、边长大于250 mm~1 300 mm锻制方钢,以及厚度大于250 mm~1 000 mm且宽度大于250 mm~1 700 mm锻制扁钢(以下简称锻材)。
本标准规定了保证淬透性结构钢条钢的订货内容、分类和代号、尺寸、外形、重量及允许偏差、技术要求、试验方法、检验规则、包装、标志和质量证明书等。
本标准适用于机械制造用保证淬透性的热轧及热锻结构钢条钢(以下简称钢材)。用末端淬火方法测定或按公式计算钢的淬透性。