Alloy seamless steel pipe

SunnySteel is a merchant exporter and supplier of alloy steel pipes and alloy steel tubes used for many different purposes.

Alloy pipes specification and Size

Alloy steel is a series of alloy which its main content is steel. To add different metal elements with different ratios in steel can change the mechanical properties of alloy steel.

ASTM/ ASME

American Society for Testing and Materials(ASTM), American Society of Mechanical Engineers (ASME)

Description Standard Dimension
(mm)
Steel code/ Steel grade
Carbon and alloy steel mechanical tubing, either hot-finished or cold-finished ASTM A519 20-180 x 2-30 A1, C
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes ASTM A213 09 10.3-426 x 1.0-36 T5, T5b, T9 , T11, T22 ,T91
Seamless Carbon and Alloy Steel for Mechanical Tubing ASTM A333 1/4"-42" x SCH20-XXS Grade1 Gr. 3,Gr..6, Gr.8 , Gr. 9
Seamless ferritic alloy-steel pipe for high-temperature service ASTM 335/335M 1/4"-42" x SCH20-XXS P5, P9 ,P11, P91, P22, P92
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
Seamless steel tubes for pressure purposes EN10216 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
JIS

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

Product name Executive standard Dimension (mm) Steel code/ Steel grade
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)
Heat resistant alloy steel pipes that are used for high temperature conveying fluid pipes for heaters and boiler tubes. JIS G3458 10.5-660.4 mm STPA 12, STPA 20, STPA 22, STPA 23, STPA 24, STPA 25, STPA 26

Alloy steels are made by combining carbon steel with one or several alloying elements, such as manganese, silicon, nickel, titanium, copper, chromium and aluminum. These metals are added to produce specific properties that are not found in regular carbon steel. The elements are added in varying proportions (or combinations) making the material take on different aspects such as increased hardness, increased corrosion resistance, increased strength, improved formability (ductility); the weldability can also change.

The most important and desired changes in alloy steel are:

  • Increased hardenability.
  • Increased corrosion resistance.
  • Retention of hardness and strength.

Nearly all alloy steels require heat treatment in order to bring out their best properties.

Alloying Elements & Their Effects

  • Chromium – Adds hardness. Increased toughness and wear resistance.
  • Cobalt – Used in making cutting tools; improved Hot Hardness (or Red Hardness).
  • Manganese – Increases surface hardness. Improves resistance to strain, hammering & shocks.
  • Molybdenum – Increases strength. Improves resistance to shock and heat.
  • Nickel – Increases strength & toughness. Improves corrosion resistance.
  • Tungsten – Adds hardness and improves grain structure. Provides improved heat resistance.
  • Vanadium – Increases strength, toughness and shock resistance. Improved corrosion resistance.
  • Chromium-Vanadium – Greatly improved tensile strength. It is hard but easy to bend and cut.
ASTM A213 T5 Superheater and Heat-Exchanger Tubes

ASTM A213 T5 Superheater and Heat-Exchanger Tubes

Measurment out diameter

ASTM A213 T5b Seamless alloy tube

ASTM A213 T9

ASTM A213 T9 Seamless alloy pipe

ASTM A213 T11 Seamless alloy pipe

ASTM A213 T11 Seamless alloy pipe

ASTM A213 T91 Seamless alloy tube

ASTM A213 T91 Seamless alloy tube

ASTM A213 T22 alloy steel pipe

ASTM A213 T22 alloy steel pipe

ASTM A213 T12 Seamless alloy pipes

ASTM A213 T12 Seamless alloy pipes

ASTM A213 T92 Alloy Steel Seamless Tube

ASTM A213 T92 Alloy Steel Seamless Tube

ASTM A213 T122 Seamless alloy pipes

ASTM A213 T122 Seamless alloy pipes

Standards for Alloy pipes & tubes

ASTM A213 T91
ASTM A213M-09
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
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/ASME SA335 standard specication for seamless ferritic alloy-steel pipe for high-temperature service
Related alloy steel products:
Carbon steel flanges
Alloy steel flanges
Alloy steel flange, that is, the main material is alloy steel flange or end flange connectors. It contains alloy steel flange, known as alloy steel flange.
Rare earth alloy wear-resistant tube
Rare earth alloy wear resistant pipe has the characteristics of fast velocity and high flow rate is used for pneumatic, pump slurry, etc.
Wear resistant alloy composite pipe
Wear resistant alloy composite pipe
Wear-resistant alloy steel pipe as the base, lined with ultra-wear-resistant alloy, through the centrifugal casting, metallurgy combined to form a solid.

Alloy steel specification, Standard and identification

Alloy Steel pipe contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous.

Industries We Serve

Our team of experienced sales specialists proudly partners with gas and chemical processors, power generation plants, oil refineries, and related industries to offer piping components and value-added services.

ASTM A335 P11 alloy pipe


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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