jis stpg38 tube 6m length 30 36 28 inch large diameter thick wall black iron carbon steel seamless pipe for oil gas

Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow - liquids and gases (fluids), slurries, powders and masses of small solids. These pipes are used in various application industry like shipbuilding, power plants, oil and gas, automotive, sugar mills and distilleries, cement and construction industries etc.

Hot rolled seamless steel pipe deformation process can be summarized as three stages: extension, perforation and finishing. Hot rolled seamless steel pipes is relative to the cold-rolled, cold rolling is below the recrystallization temperature of the rolling and hot rolled is carried out at above the recrystallization temperature of the rolling. Hot rolled seamless steel pipe can damage the refinement of the crystal grains of the steel, cast microstructure of the steel ingot and eliminate the defects of the microstructure so that the the steel organization compacting, improves the mechanical properties. This improvement is reflected in the rolling direction so that the steel is no longer at a certain extent isotropic; pouring the formation of bubbles, cracks and osteoporosis, under high pressure and temperature can also be welded together.

10#, 20#, 45#, Q235, Q345, Q195, ASTM A53/ A106/ A178/ A333/ A335,

SAE1018, SAE1020, SAE1045, ST37, ST37-2, ST35, ST45, ST52, ST35.8, 19Mn5,

16Mn, SS400, Q345B, 27SiMn, 20Cr,

40Cr, 12CrMo, 15CrMo, 30CrMo, 35CrMo, 42CrMo

Steel strip packed. Standard Export Seaworthy Package.

Suit for all kinds of transport,or as required

Accessorize, machinery parts, structure steel pipe, piling pipe, sewage and

clear water transportation, Line pipe for petroleum and so on

*ASTM A106 Seamless carbon steel tube
ASTM A106 pipe (also covered in ASME specifications as S/A 106) is the standard specification for seamless carbon steel pipe for high-temperature service. Most common uses are in refineries and plants when gasses or fluids are transported at high temperatures and pressures. ASTM A106 Gr. B seamless steel pipe is a kind of low carbon steel widely used in petroleum, chemical industry and boiler industry. The material has good mechanical properties.

1. Standards: ASTM A106 (ASME SA106)
2. Products mainly used: apply to bending, curling and similar forming process.
3. The main products of steel / steel grade: Gr.A, Gr.B, Gr.C.
4. Specifications:
Range of OD outer diameter: NPS 1/8 inch to NPS 20 inch, 10.13mm to 1219mm
Range of WT wall thickness: SCH 10, SCH 20, SCH STD, SCH 40, SCH 80, to SCH160, SCHXX; 1.24mm up to 1 inch, 25.4mm
Range of length: 20ft to 40ft, 5.8m to 13m, single random lengths of 16 to 22ft, 4.8 to 6.7m, double random length with average 35ft 10.7m
Ends procession: Plain end, beveled, threaded
Coating: Black paint, varnished, epoxy coating, polyethylene coating, FBE and 3PE, CRA Clad and Lined.

* ASTM A53 Carbon Steel Pipe & Tube
ASTM A53 (ASME SA53) carbon steel pipe is a specification that covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8″ to NPS 26.  A 53 is intended for pressure and mechanical applications and is also acceptable for ordinary uses in steam, water, gas, and air lines.

A53 pipe comes in three types (F, E, S) and two grades (A, B).
A53 Type F is manufactured with a furnace butt weld or may have a continuous weld (Grade A only)
A53 Type E has an electric resistance weld (Grades A and B)
A53 Type S is a seamless pipe and found in Grades A and B)
A53 Grade B Seamless is our most polar product under this specification and A53 pipe is commonly dual certified to A106 B Seamless pipe.

*The specified steel pipe material list for your reference

Hot rolling seamless steel pipe flow chart is : round tube blank → heating → piercing → three-roll cross rolling, continuous rolling or extrusion → tube stripping → sizing (or reducing) → cooling → straightening → hydraulic test (or flaw detection) → marking → warehousing

There are at least 15 sets equipment for making seamless steel tube, such as Blanking sawing machine, tube billet heating equipment, intermediate frequency heating furnace, conical piercer, Accu-Roll rolling mill, 8-stand three-roll micro-tension reducing machine, step-by-step cooling bed, six-roll straightening machine, high-efficiency pipe cutting machine , 180mm automatic magnetic flux leakage flaw detection equipment, 80MPa hydraulic pressure testing machine and length measuring, weighing, spraying, laser marking, bundling equipment, etc.

1. How can customer get the current best offer of pipes within 1 hour?
You can chat with us or send us inquiry, tell us the quantity pcs or tons, outer diameter, wall thickness, length, seamless or welded technique etc requirements you need.

2. Where is your company located? Can customer visit you?
We are located in jinan city, shandong province. Welcome to visit us. and please tell us the product you are interested before come here, so that our responsible person can arrange suitable time & factory location according to different product for your visiting in advance.

3. How is your company product & service guaranteed?
*if customer is looking for Chinese famous brand steel material, our company can be able to supply corresponding product;
*the factories we have been kept over 5 years cooperation with has strict quality control system before/during/after production;
*CE, ISO etc other product or company certification can be provided accordingly for customer;

*third-party inspection is no problem.
*moreover, if customer receive our product that is not they need, we will make compensation without hesitation.

4. What is your product delivery time?

it takes 7-10 days for stock, and it spends 15-25 days for larger quantity or customized product. We suggest customer chat with our sales person for accurate date.

Please contact us at any time if you have other question.