Common Standard Classification And Core Requirements Of Stainless Steel Pipes

标准类型

Standard type

标准编码

Standard code

适用范围

Scope of application

核心技术要求

Core technical requirements

材质推荐

Material recommendations

GB/T

GB/T 14975-2012

《Stainless steel seamless pipes

》

Industrial fluid transportation, mechanical structural components

Outer diameter: 10 - 630mm, wall thickness: 1 - 50mm; Hydrostatic test and intergranular corrosion test are required.

06Cr19Ni10(304)

022Cr19Ni10(304L)

06Cr17Ni12Mo2(316)

022Cr17Ni12Mo2(316L)

GB/T

GB/T 12771-2019

《Stainless steel welded steel pipes for fluid transportation》

Drinking water, industrial water, gas transportation

Outer diameter ranges from 15 to 2000mm, and wall thickness from 1.0 to 20mm. It should meet the corrosion resistance standard and the welding quality should be qualified.

304,316L,Antibacterial stainless steel

(GB/T 42675-2023)

GB/T

GB/T 19228.2-2011

《Stainless steel press - fitting assemblies - Part 2: Light gauge stainless steel tubes for press - fittings》

Building water supply and hot water systems

Outer diameter is 16 - 100mm, wall thickness is 0.8 - 2.0mm. It features a thin - wall design and is suitable for press - fit connection.

304,316L

GB/T

GB/T 24593-2018

《Welded austenitic stainless steel tubes for boiler and heat - exchanger.》

boiler heating surface

It can withstand high temperature (≤700℃) and high pressure. Flattening test and flaring test are required.

304H,316H,321(1Cr18Ni9Ti)

ASTM

ASTM A312《Austenitic stainless steel seamless pipes and welded pipes

》

Chemical, petroleum, and nuclear power fields

It covers grades such as TP304, TP316, and TP321, and complies with ASME specifications.

TP304,TP316L,TP321

EN

EN 10216-5《Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Austenitic stainless steel》

European industrial system, export equipment matching

The dimensional tolerances are strict, and the mechanical properties meet the standards.

X5CrNi18-10(304),X2CrNiMo17-12-2(316L)

National standards for food contact

GB 4806.9-2023《National food safety standard - Metal materials and products for food contact》

Food processing, drinking water, kitchenware

The migration amount of heavy metals meets the standards, and non - food - grade materials like 201 are prohibited.

304,316L(Mn≤2%)