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hollow drill steels rock drilling rods circular hollow steels round hollow steels drilling polyurethane anti-corrosion coatings suiphur automatic balancing correction machine
GB/T 1301-2008 in English

GB/T 1301-2008 in English

SUPERSEDED

Hollow drill steels for rock drilling

  • Issued on:2008-08-19
  • Implemented on:2009-04-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $160.00
$156.00
Standard No: GB/T 1301-2008
Document status: SUPERSEDED
Superseded by: GB/T 1301-2025 Hollow drill steels for rock drilling
Superseded on: 2026-03-01
Title in English: Hollow drill steels for rock drilling
Title in Chinese: 凿岩钎杆用中空钢
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2008-08-19
Implemented on: 2009-04-01
Superseding: GB/T 1301-1994 Rock drilling equipment-Hollow drill steels in bar form
ICS Classification: 77.140.60-Steel bars and rods
Chinese Classification: H44-Profile steel and deformed steel
Professional Classification: GB-National Standard
Related Keywords: hollow drill steels
rock drilling rods
circular hollow steels
round hollow steels
drilling
Related Topics: Sinosteel
China Steel Standard
rock
Injection rod middle rod
mesothermal rock
GB/T 1301
GBT1301
GBT1301-1994
GB/T 1301-2008
Standard hydraulic rock drill drill rod
hammer drill rod
gbt1301

《GB/T 1301-2008凿岩钎杆用中空钢》由TC183(全国钢标准化技术委员会)归口,TC183SC8(全国钢标准化技术委员会型钢分会)执行,主管部门为中国钢铁工业协会。
本标准修改采用ISO 722:1991《凿岩钎具――钎杆用六角形和圆形中空钢钢材》(英文版)。
本标准根据ISO 722:1991重新起草,根据我国凿岩钎杆用空钢生产的实际情况,本标准在采用国际标准时进行了修改。这些技术性差异主要如下:
――增加了技术要求、试验方法、检验规则、包装、标准和质量证明书等相应内容;
――六角形中空钢公称尺寸删除38、45,增加35的规格;
――圆形中空钢增加R39-、R46-、R52-的规格;
――基本尺寸的允许偏差分为两个级别,ISO 722只有一个级别。
本标准代替GB/T 1301-1994《凿岩钎杆用中空钢》。
本标准规定了凿岩钎杆用六角形和圆形中空钢的分类及代号、尺寸、外形及允许偏差、技术要求、试验方法、检验规则、包装、标志和质量证明书。
本标准适用于凿岩钎杆用六角形和圆形中空钢。
本标准与GB/T 1301-1994相比主要变化如下:
――调整了分类及代号部分相应内容;
――改变了凿岩钎杆用中空钢的代号,将原六角形代号B改为H、圆形代号D改为R;
――用公称尺寸数值表示规格代号;
――调整了尺寸、外形及允许偏差部分;
――增加了牌号ZK95CrMo、ZK40SiMnCrNiMo、ZK23CrNi3Mo、ZK22SiMnCrNi2Mo,删除了ZKT8;
――增加了低倍组织的要求;
――加严了弯曲度、硬度、脱碳层的要求;
――增加了包装、标志和质量证明书的相应内容。


Scope

This standard specifies the classification and code, size, shape and allowable deviation, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of hexagonal and circular hollow steels for rock drilling rods. This standard applies to hexagonal and round hollow steels for rock drilling rods.

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