常用的国标钢管执行标准

国标钢管是用钢锭或实心管坯经穿孔制成毛管,然后经热轧、冷轧或冷拨制成。

GB/T 8163
国标钢管在我国钢管业中具有重要的地位。
国标钢管尺寸及允许偏差
国标钢管重量公式:[(外径-壁厚)*壁厚]*0.02466=kg/米(每米的重量)
偏差等级 标准化外径允许偏差
D1 ±1.5%,最小±0.75 mm
D2 ±1.0%。最小±0.50 mm
D3 ±0.75%.最小±0.30 mm
D4 ±0.50%。最小±0.10 mm
GB/T 12770-2002  

机械结构用不锈钢焊接钢管
Stainless steel welded pipe for mechanical structure

GB/T 12771-2000

流体输送用不锈钢焊接钢管
Welded stainless steel tubes for fluid transport

GB/T 13793-1992  

直缝电焊钢管
Straight seam welded steel pipe

GB/T 14975-2002
结构用不锈钢无缝钢管
Seamless stainless steel structure
GB/T 14976-2002

流体输送用不锈钢无缝钢管
Stainless steel seamless tubes for fluid transport

GB/T 18984-2003

低温管道用无缝钢管
Seamless steel tubes for low temperature pipe

GB/T 3639-2000

冷拔或冷轧精密无缝钢管
Cold drawn or cold-rolled precision seamless steel tube

GB 3087-1999

低中压锅炉用无缝钢管
Seamless steel tubes for low and medium pressure boiler

GB/T 3091-2001

低压流体输送用焊接钢管
Welded steel pipe for low pressure liquid delivery

GB 5310-1995

高压锅炉用无缝钢管
Seamless steel tube for high pressure boiler

GB/T 5312-1999

船舶用碳钢和碳锰钢无缝钢管
Marine carbon and carbon manganese steel seamless steel pipe

GB 6479-2000

高压化肥设备用无缝钢管
Seamless steel tubes for high-pressure chemical fertilizer equipment

GB/T 8162-1999

结构用无缝钢管
Seamless steel tubes for structure

GB/T 8163-2008

输送流体用无缝钢管
Seamless pipe conveying fluid

GB 9948-2006

石油裂化用无缝钢管
Seamless steel tubes for petroleum cracking

GB/T 14976-2002

流体输送用不锈钢无缝钢管
Stainless steel seamless tubes for fluid transport

GB/T 20409-2006

高压锅炉用内螺纹无缝钢管
For high pressure boiler seamless pipe thread

GB/T 14291-2006

矿山流体输送用电焊钢管
Welded steel pipe for mine fluid transport

GB 9948-2006

石油裂化用无缝钢管
Seamless steel tubes for petroleum cracking

CJ/T 3022-1993

城市供热用螺旋缝埋弧焊钢管
Spiral seam submerged arc welded steel pipe for urban heating

GB/T 9711.1-1997

石油天然气工业输送钢管交货技术条件第1部分:A级钢管
Industrial oil gas transportation pipe technical delivery conditions - part first: steel pipes

SY/T 5038-1992

普通流体输送管道用螺旋缝高频焊钢管
Spiral seam high frequency welded steel pipe for ordinary fluid transmission pipeline

DL/T 5017-2007

水电水利工程压力钢管制造安装及验收规范
Specification for fabrication, installation and acceptance of penstocks for hydropower and water conservancy projects

HG/T 20553-2011

化工配管用无缝及焊接钢管尺寸选用系列
Dimension selection series of seamless and welded steel pipe for chemical piping

SY/T 5037-2000

低压流体输送管道用螺旋缝埋弧焊钢管
Spiral seam submerged arc welded steel pipe for low pressure fluid transmission pipeline

GB/T13296

锅炉和热交换器用无缝钢管
Seamless steel tubes for boilers and heat exchangers

GB/T28413

锅炉和热交换器用焊接钢管
Welded steel tubes for boilers and heat exchangers

DIN/EN steel pipe
GB steel pipes
JIS seamless pipes


Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.


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