GB/T 21469-2008 in English
VALIDMachining allowances and tolerances for steel open die forgings on hammer - General requirement
- Issued on:2008-02-28
- Implemented on:2008-08-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$78.00
《GB/T 21469-2008锤上钢质自由锻件机械加工余量与公差 一般要求》由TC74（全国锻压标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了锤上钢制自由锻件的机械加工余量与公差及其使用的一般要求。本标准适用于含碳量不超过0.9%和其他合金成分总含量不超过4%的碳素钢和合金钢的自由锻件。
Scope
This standard specifies the machining allowances and tolerances of steel free forgings on hammers and the general requirements for their use. This standard applies to free forgings of carbon steel and alloy steel with a carbon content not exceeding 0.9% and a total content of other alloy components not exceeding 4%. For free forgings that exceed the scope specified in this standard, the machining allowance and tolerance shall be determined through negotiation between the supplier and the buyer.
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