Carbon Seamless Steel Pipe / Tube
Seamless carbon steel pipes are made of steel ingots or solid billets through perforation to make capillaries, which are then hot-rolled, cold-rolled or cold-drawn. The raw material of Carbon Steel Pipe is a round tube blank, which is cut by a cutting machine into a billet with a length of about 1 meter, and sent to a furnace for heating through a conveyor belt. The billets are fed into the furnace and heated at about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a critical issue. After the round tube blank is released from the furnace, it is pierced through a pressure punching machine. Generally, the more common punching machine is the conical roller punching machine. This kind of punching machine has high production efficiency, good product quality, large amount of perforation and diameter expansion, and can wear a variety of steel grades. After perforation, the round tube blank is successively cross-rolled, continuously rolled or extruded by three rolls.
1. Seamless Steel Pipe for structure (GBT8162-2008). Mainly used for general structure and mechanical structure. Its representative material (brand): carbon steel, 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
2. Seamless steel pipes for conveying fluids (GBT8163-2008). It is mainly used for conveying fluid pipelines in engineering and large-scale equipment. The representative material (grade) is 20, Q345, etc.
3. Seamless steel pipes for low and medium pressure boilers (GB3087-2008) are used to manufacture various structures of low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam pipes, large smoke pipes, small smoke pipes and arch bricks for locomotive boilers Hot-rolled and cold-drawn (rolled) seamless steel pipes of high-quality carbon Structural Steel for pipes. The representative material is 10, 20 steel.
Product Specification
| Out Diameter | 13.7mm-914mm |
| Wall Thickness | 2mm-120mm |
| Length | 2m-12m |
| Producing Standard | American ASME B36.10M, ASTM API 5L, API 5CT
Japanese JIS, German DIN, Chinese GB, BS standard |
| Steel Grade | ASTM A53, A106, A210, A252, A178, A333, A335, SAE1018, SAE1020, SAE1045 etc; API 5L PSL1: A, B, x42, x46, x52, x56, x60, x65, x70
API 5L PSL2: B, x42, x46, x52, x56, x60, x65, x70, x80
JIS SS400, STPG42, G3454, G3456 etc;
DIN St35, St35.8, St37, St42, St45, St52, DIN1626, DIN17175 etc;
GB 10#, 20#, 45#, Q235, Q345, Q195, 16Mn, 27SiMn, 20Cr, 40Cr, 12CrMo, 15CrMo, 30CrMo, 35CrMo, 42CrMo etc; |
| Special specifications | Available according to customer's requirements and quantity. |
| End Shape | Beveled end, plain end, varnished, or adding plastic caps to protect the two ends as per customer's requirements |
| Surface treatment | Painted, Oiled, galvanized, phosphate etc |
| Usage | 1.Widely used in the mechanical treatment field, petrochemical industry, transport and construction field
2.Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;
3.The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc
4.Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc |
| Third party inspection | Welcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products. |
ASTM A106 Seamless carbon steel tube
ASTM A106/ASME SA106 is the standard specification for seamless carbon steel pipe applied for high temperature services. It includes three grades A, B and C, and common use grade is A106 Grade B. It used in different industries not only for pipeline systems like oil and gas, water, mineral slurry transmission, but also for boiler, construction, structural purposes.
ASTM A106 Grade B pipe is equivalent to ASTM A53 Grade B and API 5L B on chemical position and mechanical properties, in general use carbon steel and yiled strength minimum 240 MPa, tensile strength 415 Mpa.
Description
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: diameter: 10.3 to 114.3 mm thickness: 0.8 to 12 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe.
5. Chemical composition and mechanical properties
6. JIS Number and Corrensponding Foreign Standards
Chemical Composition And Mechanical Properties
| Grade | Chemical Compositions |
| C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V |
| A106-A | ≤0.25 | 0.27-0.93 | ≤0.035 | ≤0.035 | ≥0.10 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 |
| A106-B | ≤0.30 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥0.10 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 |
| A106-C | ≤0.35 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥0.10 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.40 | ≤0.08 |
| Grade | Mechanical Properties |
| Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) |
| A106-A | ≥330 | ≥205 | 30 |
| A106-B | ≥415 | ≥240 | 30 |
| A106-C | ≥485 | ≥275 | 30 |
| INCH | OD | API 5L ASTM A53 A106 Standard Wall Thickness |
| | (MM) | SCH 10 | SCH 20 | SCH 40 | SCH 60 | SCH 80 | SCH 100 | SCH 160 |
| | | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) |
| 1/4” | 13.7 | | | 2.24 | | 3.02 | | |
| 3/8” | 17.1 | | | 2.31 | | 3.2 | | |
| 1/2” | 21.3 | 2.11 | | 2.77 | | 3.73 | | 4.78 |
| 3/4" | 26.7 | 2.11 | | 2.87 | | 3.91 | | 5.56 |
| 1" | 33.4 | 2.77 | | 3.38 | | 4.55 | | 6.35 |
| 1-1/4" | 42.2 | 2.77 | | 3.56 | | 4.85 | | 6.35 |
| 1-1/2" | 48.3 | 2.77 | | 3.68 | | 5.08 | | 7.14 |
| 2" | 60.3 | 2.77 | | 3.91 | | 5.54 | | 8.74 |
| 2-1/2" | 73 | 3.05 | | 5.16 | | 7.01 | | 9.53 |
| 3" | 88.9 | 3.05 | | 5.49 | | 7.62 | | 11.13 |
| 3-1/2" | 101.6 | 3.05 | | 5.74 | | 8.08 | | |
| 4" | 114.3 | 3.05 | 4.50 | 6.02 | | 8.56 | | 13.49 |
| 5" | 141.3 | 3.4 | | 6.55 | | 9.53 | | 15.88 |
| 6" | 168.3 | 3.4 | | 7.11 | | 10.97 | | 18.26 |
| 8" | 219.1 | 3.76 | 6.35 | 8.18 | 10.31 | 12.70 | 15.09 | 23.01 |
| 10" | 273 | 4.19 | 6.35 | 9.27 | 12.7 | 15.09 | 18.26 | 28.58 |
| 12" | 323.8 | 4.57 | 6.35 | 10.31 | 14.27 | 17.48 | 21.44 | 33.32 |
| 14" | 355 | 6.35 | 7.92 | 11.13 | 15.09 | 19.05 | 23.83 | 36.71 |
| 16" | 406 | 6.35 | 7.92 | 12.70 | 16.66 | 21.44 | 26.19 | 40.49 |
| 18" | 457 | 6.35 | 7.92 | 14.27 | 19.05 | 23.83 | 29.36 | 46.24 |
| 20" | 508 | 6.35 | 9.53 | 15.09 | 20.62 | 26.19 | 32.54 | 50.01 |
| 22" | 559 | 6.35 | 9.53 | | 22.23 | 28.58 | 34.93 | 54.98 |
| 24" | 610 | 6.35 | 9.53 | 17.48 | 24.61 | 30.96 | 38.89 | 59.54 |
| 26" | 660 | 7.92 | 12.7 | | | | | |
Product Display
We can produce different sizes, thicknesses, widths and materials according to your requirements
Test Before Delivery
We will control the quality from part of material steel pipe, each pipe produced will be have it is own identify label, quality will check the chemical component and physical property and then provide material test certificate. Size dimension will be checked and show pictures to customer to guarantee all goods will be meet requirement.
Factory Display
Packaging And Transportation
1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.
2) Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.
3) Trade terms: FOB/CIF/CFR
4) Shipping port: Qingdao/Tianjin/Shanghai
5) Shipment: A: Length: ≤6m, loaded in 20GP Container. B: Length: ≤12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside :5898*2352*2393mm); Size of 40GP Container (inside:12032*2352*2393mm); Size of 40HQ Container (inside:12032*2352*2698mm).
6) Delivery time: Normal size: 7-15days send from warehouse directly. Special size:15-30days custom made for you.
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