| Payment Type: | L/C,T/T,D/P |
| Incoterm: | FOB,CFR,CIF,EXW |
| Transportation: | Ocean,Land,Express |
| Port: | Tianjin,Qingdao,Shanghai |
Model No.: ASTM A106
Standard: Astm, Bs, Gb, Jis, Api
Material: Q195-Q345, 10#-45#, A53-A369, St35-St52, Seamless Steel
Section Shape: Round
Place Of Origin: China
Application: Fluid Pipe, Boiler Pipe, Gas Pipe, Oil Pipe, Structure Pipe
Production Process: Hot Rolled
Certification: Ce, Api
Special Tube: Api Pipe, Thick Wall Pipe
Whether Alloy: Non-Alloy
Tolerance: ±1%
Category: Seamless Steel Pipe
Processing Service: Bending, Welding, Punching, Cutting, Decoiling
Length: 6-12m
Thickness: customized
| Selling Units | : | Ton |
| Package Type | : | Exported Packaging Standard |
| Picture Example | : |
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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.
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.
Hot Rolled Steel Pipes (Seamless Tube) in different size, specifications, grades & thickness as per the client's requirements. The range offered by tubes is available as per the international & national standard and can be available from us at affordable prices. 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.
ASTM A106 seamless pressure pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships where the piping must transport fluids and gases that exhibit higher temperatures and pressure levels.
Product Introduction
ASTM A106 seamless pipes (also known as ASME SA106 pipes) are commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers and ships. These pipes must carry fluids that exhibit higher temperature and pressure levels And gas.ASTM A106 pipe includes three grades, A106 grade a, A106 grade b, and A106 grade c.
About ASTM A106 Gr B
ASTM A106 Gr.B seamless pipes (also known as ASME SA106 GR B pipes) is a cs Seamless Pipe nominal pipe for high temperature use.The chemical composition of A 106 Gr.B is as follows:
C≤0.25, Mn=0.27-0.93, P≤0.035, S≤0.035, Si≤0.1, Cr≤0.4, Cu≤0.4, Mechanical properties: ób≥415/MPa, ós≥240/MPa.
About ASTM A106 Gr C
ASTM A106 Gr.C seamless pipes (also known as ASME SA106 GR C pipes) is a carbon-manganese steel pipe for high-temperature large-diameter boilers and superheaters. Its chemical composition is simple and similar to 20G carbon steel, but its carbon and manganese content is higher, so its yield strength is about 12% higher than that of 20G, and its plasticity and toughness are not bad. The steel has a simple production process and good cold and hot workability. Using it to replace 20G headers (economizer, water wall, low-temperature superheater and reheater header) can reduce the wall thickness by about 10%, which can save material costs, reduce welding workload, and improve headers The stress difference at start-up.
Technical data
Chemical Requirements of ASTM A106 grade a, b and c
| Grade | Grade A | Grade B | Grade C |
| Carbon max. % | 0.25 | 0.30 | 0.35 |
| Manganese % | 0.27 to 0.93 | 0.29 to 1.06 | 0.29 to 1.06 |
| Phosphorous, max. % | 0.035 | 0.035 | 0.035 |
| Sulfur, max. % | 0.035 | 0.035 | 0.035 |
| Silicon, min.% | 0.10 | 0.10 | 0.10 |
| Chrome, max. % | 0.40 | 0.40 | 0.40 |
| Copper, max. % | 0.40 | 0.40 | 0.40 |
| Molybdenum, max. % | 0.15 | 0.15 | 0.15 |
| Nickel, max. % | 0.40 | 0.40 | 0.40 |
| Vanadium, max.% | 0.08 | 0.08 | 0.08 |
Note: Total of Cr, Cu, Mo, Ni, and V shall not exceed 1%
Tensile requirement of ASTM A106 grade a, b and c.
| Grade | Grade A | Grade B | Grade C |
| Tensile Strength, min., psi | 48000 | 60000 | 70000 |
| Yield Strength, min., psi | 30000 | 35000 | 40000 |
Mechanical Properties of ASTM A106 Seamless Pipes
| ASTM A106 Steel Grade | Tensile Test MPa or N/mm2 | ||
| Min. Yield Point | Min. Tensile Strength | Elongation (%) | |
| Grade A | 205 | 330 | 20 |
| Grade B | 240 | 415 | 20 |
| Grade C | 275 | 485 | 20 |
Equivalents of ASTM A106 Seamless Pipes
| Specification | Mechanical Properties | Grade A | Grade B | Grade C |
| ASTM A53 | Tensile strength, min, psi (MPa) | 48000(330) | 60000(415) |
|
| Yield strength, min, psi (MPa) | 30000(205) | 35000(240) |
| |
| ASTM A106 | Tensile strength, min, psi (MPa) | 48000(330) | 60000(415) | 70000(485) |
| Yield strength, min, psi (MPa) | 30000(205) | 35000(240) | 40000(275) |
Manufacturing & Testing Requirements for A106 Seamless Pipes
| Heat Treatment | Hot-finished pipe need not be heat treated. Cold-drawn pipe shall be heat treated after the final cold draw pass at a temperature of 1200 °F (650 °C) or higher. |
| Process | The steel shall be killed steel, with the primary melting process being open-hearth, basic-oxygen, or electric-furnace, possibly combined with separate degassing or refining. If secondary melting, using electroslag remelting or vacuum-arc remelting is subsequently employed, the heat shall be defined as all of the ingots remelted from a single primary heat. Steel cast in ingots or strand cast is permissible. When steels of different grades are sequentially strand cast, identifi- cation of the resultant transition material is required. The producer shall remove the transition material by any estab- lished procedure that positively separates the grades. |
| Surface Treatment | Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting |
| Hydrostatic Testing | Inspection test pressures produce a stress in the pipe wall equal to 60% of specified minimum yield strength (SMYS) at room temperature. Maximum Pressures are not to exceed 2500 psi for NPS3 and must stay under 2800 psi for the larger sizes. Pressure is maintained for not less than 5 seconds. |
| Nondestructive Electric Test | The full body of each pipe shall be tested with a nondestructive electric test in accordance with Practice E 213, E 309, or E 570. |
| Mechanical Tests Specified | Tensile Test — NPS 8 and larger — either transverse or longitudinal acceptable smaller than NPS 8 — weighed in lots. Larger sizes — by length. Flattening Test — NPS 2-1/2 and larger. Bending Test (Cold) — NPS 2 and under. |
Application
Carbon Steel Pipe and tube are used in high-pressure conditions. They are highly resistant to shock and vibration, making it ideal to transport fluids. Carbon steel pipes are widely used in a number of industries, such as construction material, buidlings, bridges, transporting water and sewage, oil and gas industries, boiler and condenser tubes, high-pressure applications, and chemical processing.
- Construction material / bridges
- Transporting water and sewage
- Oil and gas industries
- Boiler and condenser tubes
- High-pressure applications
- Chemical processing
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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