GB/T 10878-2026 气瓶锥螺纹丝锥

ICS23.020.30

CCSJ74

中华人民共和国国家标准

GB/T10878—2026

代替GB/T10878—2011

气瓶锥螺纹丝锥

Specialtapsoftaperthreadsforgascylinders

2026⁃09⁃28发布2027⁃04⁃01实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T10878—2026

目次

前言··························································································································Ⅲ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4型式和尺寸··············································································································1

5技术要求·················································································································3

5.1材料和硬度········································································································3

5.2外观和表面粗糙度·······························································································3

5.3螺纹牙型···········································································································3

5.4连接要求···········································································································3

5.5螺纹基面直径·····································································································3

5.6丝锥方头尺寸公差·······························································································3

5.7位置公差···········································································································4

6性能试验·················································································································4

6.1试验要求和方法··································································································4

6.2试验条件···········································································································4

6.3试验结果的评定··································································································4

7标志和包装··············································································································5

7.1标志·················································································································5

7.2包装·················································································································5

图1丝锥的型式和尺寸·································································································1

图2丝锥螺纹的牙型和尺寸···························································································2

表1丝锥尺寸·············································································································1

表2丝锥螺纹的牙型尺寸······························································································2

表3丝锥表面粗糙度的最大允许值··················································································3

表4丝锥各部的圆跳动公差···························································································4

表5切削规范·············································································································4

Ⅰ

GB/T10878—2026

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规定

起草。

本文件代替GB/T10878—2011《气瓶锥螺纹丝锥》，与GB/T10878—2011相比，除结构调整和编

辑性改动外，主要技术变化如下：

——增加了PZ30.3和PZ56的丝锥尺寸（见表1）；

——增加了PZ30.3和PZ56的丝锥牙型和螺纹尺寸（见表2）；

——增加了PZ30.3和PZ56的丝锥各部的圆跳动公差（见表4）；

——增加了PZ30.3和PZ56的规格切削的规范（见表5）；

——更改了包装要求（见6.2，2011年版的6.2）。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由全国气瓶标准化技术委员会（SAC/TC31）提出并归口。

本文件起草单位：上海市特种设备监督检验技术研究院有限公司、武义西林德机械制造有限公司、

宁波市特种设备检验研究院、廊坊恒宇工具制造有限公司、烟台市特种设备检验研究院、上海百图低温

阀门有限公司、中材科技（苏州）有限公司、宁波三安制阀有限公司、宁夏特种设备检验检测研究院、

山东鲁能特种设备检验检测有限公司、青岛市特种设备检验研究院、厦门市特种设备检验检测院。

本文件主要起草人：徐维普、徐俊伟、王小华、张秀芝、李广文、陈海涛、朱红波、何晓峰、杨明高、

翁国栋、王文达、刘景新、咸富海、辛爱玲、邹志坚、王建生。

本文件于1989年首次发布，1999年第一次修订，2011年第二次修订，本次为第三次修订。

Ⅲ

GB/T10878—2026

气瓶锥螺纹丝锥

1范围

本文件规定了气瓶锥螺纹丝锥的型式和尺寸、技术要求、性能试验以及标志和包装。

本文件适用于加工符合GB/T8335中圆锥内螺纹的丝锥。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于

本文件。

GB/T145中心孔

GB/T8335气瓶专用螺纹

3术语和定义

本文件没有需要界定的术语和定义。

4型式和尺寸

4.1丝锥的型式和尺寸按图1和表1的规定。

图1丝锥的型式和尺寸

表1丝锥尺寸

单位为毫米

′

牙数L0d方头尺寸

代号螺距PLlL

（每25.4mm）1

基本尺寸极限偏差基本尺寸极限偏差aL2

PZ19.275353016.0012.516

-0.070

141.814±0.96

PZ27.880403325.0020.020

-0.084

1