Carbon Steel Pipe STB30 STB33 STB35 JIS G3461

Carbon Steel Pipe STB30 STB33 STB35 JIS G3461

Steel Pipe, Seamless Steel Pipe, Tubing manufacturer / supplier in China, offering Carbon Steel Pipe STB30 STB33 STB35 JIS G3461, Cold Drawn Seamless Steel Pipe for Shock Absorber, Cold Drawn Seamless Steel Pipe for Bushing and so on.
Product description

Carbon Steel Pipe STB30 STB33 STB35 JIS G3461

  • Type: Seamless

  • Material: Carbon Steel

  • Usage: Pipeline Transport, Boiler Pipe, Oil/Gas Drilling, Mining, Construction & Decoration

  • Steel Grade: STB340 STB410 STB510

  • Standard: JIS G3461

  • Delivery Time: 30-50days

  • Specification: C Si Mn P S

  • Technique: Hot Rolled

  • Surface Treatment: Black

  • Section Shape: Round

  • Application: Heat Exchanger and Condensers

  • Payment: T/T;L/C

  • Origin: China

Product Description

(1) High quality JIS Standard G3461 STB30 carbon steel seamless pipewith reasonable price.
(2) Wide excellent experiences withafter-sale service.
(3) Every process will be checked by responsible QC whichinsuresevery product's quality.
(4) Professional packing teams whichkeep every packingsafely.
Production Description

Product Name

STB340 steel pipe

STB410 steel pipe

STB510 steel pipe

chemical analysis

C:≤0.18; Si:≤0.35;Mn:0.30-0.60;P: ≤0.035; S:≤0.035

C:≤0.32; Si:≤0.35;Mn:0.30-0.60;P: ≤0.035; S:≤0.035

C:≤0.25; Si:≤0.35;Mn:1.00-1.50;P: ≤0.035; S:≤0.035

Tensile Strength




Yield strength




Heat Treatment / Delivery Condition


Cold drawn / hard.

After the last cold forming no heat treatment.


Cold drawn / soft. After the last heat treatment follows the cold drawing there is a light finishing pass.


Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.


Annealed. After the last cold drawing process the tubes are annealed in a controlled atmosphere.



After the last cold drawing process the tubes are annealed in a controlled atmosphere.

our company
Jiangsu Jinguan Special Steel Pipe Co. Ltd., specialized in petroleum chemical industry, electric power industry with a variety of alloy steel pipe, stainless steel pipe, carbon steel, nickel base alloy, Hastelloy alloy, high temperature resistance, low temperature resistance, corrosion resistant pipe and plate, round steel, steel and other materials. Jinguan adhere to customer first, innovation based on customer demand, win the respect and trust of customers.

Jinguan has cooperated with famous enterprises, Sandvik NSSC (Sumitomo), JFE, VALLOUREC, Taina Reiss (Dahl), Spain United steel companies, the United States SMC, Baosteel, TPCO, Valin, Chengde and other kinds of producers to establish a long-term friendly cooperative partnership. Is the number of enterprises authorized agents and distributors.

According to ASTM/ASME, DIN/EN, BS, JIS, GOST, GB and even more stringent special requirements of various materials supply pipeline products and other special alloy materials according to the requirements of users.

Customer service is the only reason for the existence of Jinguan, the users’ demand is the driving force of the development of Jinguan, adhere to customer first, rapid response to customer needs, to provide users with better service, continue to create long-term value for users.

As the pipeline and special materials solutions provider, the ability of efficient integration of Jinguan team with professional

knowledge and skills, quality and reliable supply channels, global resources and rapid response to the implementation of the strategy, focus on the world to provide users with excellent service and all kinds of materials.

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