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Pipe & fittings Standards

With the rapid expansion in the global trade, standardization of various products has become an essential requirement. The standards given to various products significantly contributes towards increasing international trade which in turn bridges the quality gap between the manufacturers, producers and buyers of different nations.

Standards for Alloy pipes & tubes

In pipe & fittings as well, standards play a vital role. The manufacture and installation of pipe fittings is tightly regulated by various standards and codes.

ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
ASTM A333
Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications.
ASTM A335 P22 is the part of ASTM A335, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.
ASTM A335
Astm A335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service
Standars for Tubing and Casing, Line Pipes
API 5L
API Spec 5L
is the American Petroleum Institute specification API 5L covers seamless and welded steel line pipe.
API Spec 5CT
API Spec 5CT
Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes.

ASTM/ ASME- Standards for pipes

Difference between “Standard” and “Codes”:

Piping codes imply the requirements of design, fabrication, use of materials, tests and inspection of various pipe and piping system. It has a limited jurisdiction defined by the code. On the other hand, piping standards imply application design and construction rules and requirements for pipe fittings like adapters, flanges, sleeves, elbows, union, tees, valves etc. Like a code, it also has a limited scope defined by the standard.

DIN/EN- European Standards for steel

Germany Safety(GS), Deutsches Institut für Normung(DIN)

Product name Executive standard Dimension (mm) Steel code/ Steel grade
Seamless Steel Tubes for Elevated Temperature DIN 17175 10~762 x 1.0~120 St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36
Manufacturing pipeline,vessel,equipment,pipe fittings. DIN 1629 13.5~762 x 1.8~120 St37.0, St44.0, St52.0
Seamless steel tubes for pressure purposes EN 10216 4.0~60.0 x 0.5~8
5-7 m manufacturing lenght
P235GH TC1, P235GH TC2, 16Mo3
Seamless precision steel tube applications EN 10305-1 13.5~165.1 x 1.8~4.85 St33.2
Seamless Precision Steel Tube DIN 2391 4.0~60.0 x 0.5~8 St35, St45, St52
Seamless Steel Tubes DIN 2440 13.5~165.1 x 1.8~4.85 St33.2
JIS

Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan.

Product name Executive standard Dimension (mm) Steel code/ Steel grade
High pressure and high temperature service JIS G3454/5/6 19.05~114.3 x 2.0~14 JIS G3454(STPG370, STPG410), JIS G3455(STS370, STS410, STS480), JIS G3456(STPT370, STPT410, STPT480)
Tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts. JIS G3445 19.05~114.3 x 2.0~14 STKM11A, STKM12(A,B,C), STKM13(A,B,C), STKM14(A,B,C).
Carbon steel/Alloy steel boiler and heat exchanger tubes JIS G3461,2 19.05~114.3 x 2.0~14 G3461(STB340, STB410, STB510)
G3462(STBA22, STBA23)
Seamless steel tubes for high pressure gas cylinder JIS G3429 19.05~114.3 x 2.0~14
Length: max 16000mm
STH11, STH12, STH21, STH22
GB 国标
Product name Executive standard Dimension (mm) Steel code/ Steel grade
Low and medium pressure boiler seamless pipe GB 3087 19.05~114.3 x 2.0~14 10#, 20#
Low-temperature heat exchanger tubes seamless steel pipe GB/T18984 19.05~351 x 2.0~14 06Ni3MoDG, 09DG, 09Mn2VDG, 10MnDG, 16MnDG
High pressure and above pressure steam boiler tubes with high quality carbon structural. GB5310 19.05~114.3 x 2.0~14 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG, 15CrMoG(T12/P12), 12CrMoG, 12Cr2MoWVTiB.

Standards for flanges & fittings

AWWA standards
- evaluate properties that particularly affect potable water use, as opposed to broader industrial flange applications.
ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
ANSI standards
-approved flanges are used for the industrial market which handles gas, air and steam process systems.
ASTM A234 WPB
Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service.
ASTM A420 WPL6 90 degree short radius Elbow
Our Stainless Steel Pipes meets mainly the following standards:
ASTM-A511-Seamless-Stainless-Steel-Tubing.jpgASTM A511 Standard Specification
ASTM A312 stainless steel
ASTM A312 stainless steel
Stainless steel pipes for oil cracking ANSI Standards Stainless Steel

Recommend steel products

We provide our customer with mainly steel pipe include carbon steel seamless tube,stainless seamless tube, alloy seamless tube,seamless pipe, welded pipes and ceramic lined pipe. The fittings include bend pipe, flange, cap, tees and cross, elbow, and reducers etc.

Pipe flange, Flanges
Flanges
are integral parts of many engineering and plumbing projects.
Pipe fittings
Pipe fittings
are used to connect pipes comprises of bend, elbow, reducer, tees, cross etc.
ASTM A335 Chrome monly pipe
Chrome monly pipe
Chorme-Moly is a seamless ferritic Alloy-Steel Pipe for high temperature service.
ASTM A179 Heat Exchanger tube
A179 exchange tube
for tubular, heat exchanger, condensers, heat transfer services.
Low Temperature Pipe
Low Temperature Pipe
ASTM A333 (ASME S/A-333) Pipe grades permit low temperature service.
Ceramic lined pipe
is made through self-propagating high-temperature synthesis (SHS) technique.
ceramic ring lined pipe
In the electric power, metallurgy, chemical industry, mining, cement...
Alloy pipes stock
These offered alloy pipes are available with us in divergent sizes and ...


About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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