GB/T 42675-2023Welded antibacterial stainless steel pipes and fittings (English PDF)

1 Scope

This document stipulates the classification and code number, ordering content, size, shape, weight and allowable deviation of antibacterial stainless steel welded steel pipes and fittings,

Technical requirements, test methods, inspection rules, marking, packaging, storage and quality certificates.

This document is applicable to applications where the nominal pressure is not greater than 1.6MPa and the nominal diameter is not greater than DN300, transporting medical gases, domestic hot and cold water, and biomass.

Antibacterial stainless steel welded steel pipes (hereinafter referred to as "steel pipes") and clamped and grooved pipe fittings (hereinafter referred to as "steel pipes") that utilize water purification and medical vacuum systems

"Fittings").

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 191 Packaging, storage and transportation pictorial mark

GB/T 222 Allowable deviations in chemical composition of finished steel products

GB/T 223.11 Determination of chromium content in steel and alloys by visual titration or potentiometric titration method

GB/T 223.18 Methods for chemical analysis of steel and alloys. Separation of sodium thiosulfate-Determination of copper content by iodometric method

GB/T 223.25 Chemical analysis methods for steel and alloys - Determination of nickel content by diacetyl oxime gravimetric method

GB/T 223.28 Methods for chemical analysis of steel and alloys - Determination of molybdenum content by alpha-benzoxime gravimetric method

GB/T 223.59 Determination of phosphorus content in steel and alloys bismuth phosphorus molybdenum blue spectrophotometry and antimony phosphorus molybdenum blue spectrophotometry

GB/T 223.60 Chemical analysis methods for steel and alloys Determination of silicon content by perchloric acid dehydration gravimetric method

GB/T 223.63 Determination of manganese content in steel and alloys - Sodium (potassium) periodate spectrophotometry

GB/T 223.85 Determination of sulfur content in steel and alloys - Infrared absorption method after combustion in induction furnace

GB/T 223.86 Determination of total carbon content of steel and alloys - Infrared absorption method after combustion in induction furnace

GB/T 228.1 Tensile testing of metallic materials Part 1.Room temperature test methods

GB/T 241 Hydraulic test method for metal pipes

GB/T 242 Metal pipe expansion test method

GB/T 245 Test method for hemming of metal material tubes

GB/T 246 Flattening test method for metal tubes

GB/T 2102 Acceptance, packaging, marking and quality certificate of steel pipes

GB/T 2651 Tensile test method for welded joints

GB/T 2653 Bending test method for welded joints

GB/T 2828.1-2012 Enumeration sampling inspection procedures Part 1.Batch-by-batch inspection sampling retrieved by acceptance quality limit (AQL) plan

GB/T 2975 Sampling location and sample preparation for mechanical property testing of steel and steel products

GB/T 3098.6 Mechanical properties of fasteners Stainless steel bolts, screws and studs

GB/T 3098.10 Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals

GB/T 3098.15 Mechanical properties of fasteners stainless steel nuts […]