GB/T 8892-2014Copper alloy tube for pressure gauge (English PDF)

Foreword

Accordance with the standards GB/T 1.1-2009 given rules drafted.

This standard replaces GB/T 8892-2005 "copper alloy tube pressure gauge." This standard and GB/T 8892-2005 compared to the main changes as follows.

--- Increased product classification description;

--- Remove the oval tube, flat tube terminology and definitions;

--- Increased BFe10-1-1 grades and the corresponding technical requirements;

--- Pipe specifications from the original (phi2mm ~ phi25mm) × (0.11mm ~ 1.8mm) extended (phi1.5mm ~ phi25mm) × (0.10mm ~ 1.8mm);

--- The product size tolerances adjusted and supplemented;

--- Mechanical properties increased by a predetermined short sample A;

--- Increased residual stress test requirements and test methods;

--- On the surface quality requirements for the supplement.

1 Scope

This standard specifies the gauge copper alloy tube (hereinafter referred to as "pipe") requirements, test methods, inspection rules and signs, packaging, transportation Transport, storage, quality certificate and contract (or purchase order) content.

This standard is based on the use of the product is divided into 2 levels.

a) high-precision. for precision pressure gauges, special pressure gauges, pressure gauges and other instruments with a special chemical copper alloy tube.

b) Ordinary Level. Suitable for general pressure gauges, pressure gauge, differential pressure gauges and other remote instruments and copper alloy tubes for pressure purposes.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

RT Test Method. Test Part 1 GB/T 228.1-2010 metal material tensile

GB/T 241 metal pipe Hydrostatic pressure testing Opening Test methods GB/T 242 metal tube expansion

GB/T 244 metal pipe bending test method

GB/T 246 metal pipe Flattening test methods

GB/T 2828.1 Sampling procedures for inspection - Part 1.

GB/T 5121 (all parts) of copper and copper alloys - GB/T 5231 and processing of copper and copper alloy grades and chemical composition

GB/T 5248 copper and copper alloy seamless pipe eddy current testing method

GB/T 8888 heavy non-ferrous metal processing products packaging, labeling, transportation and storage

GB/T 10567.2 copper and copper alloy processing material residual stress - Ammonia test test method

GB/T 26303.1 copper and copper alloy processing material Dimensions detection methods - Part 1: Pipes

YS/T 482 copper and copper alloy analysis photoemission spectroscopy

YS/T 483 copper and copper alloy analysis X-ray fluorescence spectrometry (wavelength dispersion)

YS/T 668 copper and copper alloy physical and chemical detection sampling method

YS/T 815 methods for preparing copper and copper alloy mechanical and technological properties of the sample

3 Requirements