The term "carbon steel" may also be used in reference to steel which is not stainless steel; in this use carbon steel may include alloy steels.
Applications
Carbon Steel is used in the most critical engineering applications and also in certain applications in the automotive sector. In addition, some of the value-added Carbon Steel products include steel for LPG cylinders, API grade, corrosion resistant steel, critical structural application steel, boiler quality, auto grades, precision tubes and medium/high carbon grades, among others.
Carbon Products
A53 A106 API5L Grade B/C X42 Seamless Pipe
Size Range : 1/8" - 26"
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH
Grades : ASTM A53 Gr B, ASME SA53 Gr B, API-5L Gr B, ASTM A106 Gr B, ASME SA106 Gr B, ASTM A106 Gr C, PSL 1 and PSL2
API5L X-42 X-52 X-60 Seamless Pipe
Size Range : 2" - 24"
Schedules : Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH
Grades : PSL1 and PSL2
A333 (Low Temp) Grade 1/6 Carbon Steel Seamless Pipe
Size Range : 1/2" - 24"
Schedules : Standard (STD), Extra Heavy (XH), 100, 120, 160, XXH
A53 API5L Grade B X-42 X-52 X-60 ERW (Electric Resistance Welded) Pipe
Size Ranges : 2" - 24"
Schedules : 10, 20, Standard (STD), Extra Heavy (XH)
Non-Schedules : .120wall, .156wall, .188wall, .203 wall, .219wall etc.
Grades : API-5L Gr B, API-5L Gr X42, API-5L Gr X52, API-5L Gr X60, API-5L Gr X65PSL1 and PSL2
API5L Grade B X-42 X-52 X-60 DSAW/SAW
Size Ranges : 26" - 60"
Schedules : 20, Std, XH, 30,
Grades : API-5L Gr B, API-5L Gr X42, API-5L Gr X52, API-5L Gr X60, API-5L Gr X65PSL1 and PSL2
Sizes (Seamless): 1/2” NB - 60” NB
Sizes (ERW): 1/2” NB - 24” NB
Sizes (SAW): 16” NB - 100” NB
Wall Thickness available:
Schedule 20 - Schedule XXS (heavier on request) up to 250 mm thk.
Material Grades :
High Temperature Seamless Pipe ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B
Heat Exchanger Seamless Tube ASTM A179/ 192/ 210
Low Temperature Seamless Pipe ASTM A333 Gr. 3/6
Low Temperature Seamless Tube ASTM A334 Gr. 6
High Yield Seamless Pipe API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield Seamless Pipe ISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485
Atmospheric & Low Temp EFW Pipes ASTM A671 Gr. CC60/CC65/CC70
High Pressure & Moderate Temp EFW Pipes ASTM A672 Gr. B60/B65/B70/C55/C60/C65/C70
High Yield ERW/SAW Pipe API 5L Gr. X42/X46/X52/X56/X60/X65/X70/X80 PSL-1/PSL-2
High Yield ERW/SAW Pipe ISO 3183 Gr.L245, L290, L320, L360, L390, L415, L450, L485
Additional Testing :
NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.
Dimensions :
All Pipe is manufactured and inspected/tested to the relevant standards including ASTM, ASME, API.
Please read more informations about About carbon steel pipe tubing as below:
- Difference between carbon steel pipe fittings and stainless steel pipe fittings
- Welding method of low carbon steel at a low temperature
- Carbon steel advantages and disadvantages in piping
- Difference between mild steel and carbon steel pipe
- Carbon steel pipe products and classfication
Looking for a Carbon Steel Seamless Pipes Supplier?
We can help supply all of the Carbon Steel Seamless Pipes or linepipe supplies that your company needs for use in the oil or natural gas industries. Carbon steel is a metal alloy that is formed as a result of combining iron and carbon.
ASTM / ASME
| Product name | Executive standard | Dimension (mm) | Steel code/ Steel grade |
| Black and Hot-dipped Zinc-coated Steel Pipes Seamless | ASTM A53 | 0.3~1200 x 1.0~150 | GR.A, GR.B, GR.C |
| Seamless Carbon Steel for High Temperature Service | ASTM A106 | 10.3~1200 x 1.0~150 | GR.B, GR.C |
| Seamless Cold-drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes | ASTM A179 | 10.3~426 x 1.0~36 | Low Carbon Steel |
| Seamless Carbon Steel Boiler Tubes for High Pressure | ASTM A192 | 10.3~426 x 1.0~36 | Low Carbon Steel |
| Seamless Cold-drawn Intermediate Alloy Steel Heat-exchanger and Condenser Tubes | ASTM A199 | 10.3~426 x 1.0~36 | T5, T22 |
| Seamless Medium-carbon Steel Boiler and Superheater Tubes | ASTM A210 | 10.3~426 x 1.0~36 | A1, C |
| Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-exchanger Tubes | ASTM A213 | 10.3~426 x 1.0~36 | T5, T9, T11, T12, T22, T91 |
| Seamless Carbon and Alloy Steel for Mechanical Tubing | ASTM A333 | 1/4"~42" x SCH20~XXS | Gr1, Gr3, Gr6 |
| Seamless and Welded Carbon Steel Pipes and Alloy Steel Pipes for Low Temperature Use | ASTM A334 | 1/4"~4" x SCH20~SCH80 | Gr1, Gr6 |
| Seamless Cold-drawn Carbon Steel Feedwater Heater Tubes | ASTM A556 | 10.3~426 x 1.0~36 | A2, B2 |
Steel typically is considered to be carbon steel when the proportions of other trace elements in it do not exceed certain percentages.
GS/ 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 | DIN 1629 | 13.5~762 x 1.8~120 | St37.0, St44.0, St52.0 |
| Seamless Precision Steel Tube | DIN 2391 | 4.0~60.0 x 0.5~8 | St35, St45, St52 |
| Seamless Steel Tubes | DIN 2440 | 13.5~165.1 x 1.8~4.85 | St33.2 |
Carbon steelspecification, Standard and identification
Carbon steel pipe tubing is used to transport fluids and gases in a variety of pneumatic, hydraulic, and process applications.
Carbon Steel Chemical composition
| Steel Grade | Standard Number | Type | Chemical composition | Other | ||||||||||||
| C | Si | S | P | Mn | Cr | Ni | Mo | Other | ób | ós | δ5 | HB | ||||
| 20 | GB/T699 | Bar | 0.17-0.23 | 0.17-0.37 | 0.035 | 0.035 | 0.35-0.65 | 0.25 | 0.3 | Cu：0.25 | 410 | 245 | 25 | 156 | ψ%：55 | |
| 20 | GB3087 | Pipe | 0.17-0.23 | 0.17-0.37 | 0.035 | 0.035 | 0.35-0.65 | 0.25 | 0.3 | Cu：0.25 | 410-550 | 245 | 20 | |||
| 20 | GB/T8163 | Pipe | 0.17-0.23 | 0.17-0.37 | 0.035 | 0.035 | 0.35-0.65 | 0.25 | 0.3 | Cu：0.25 | 410-550 | 245 | 20 | |||
| 20 | GB9948 | Pipe | 0.17-0.24 | 0.17-0.37 | 0.035 | 0.035 | 0.35-0.65 | 0.25 | 0.25 | Cu：0.25 | 410-550 | 245 | 21 | Akv J:39 | ||
| 20 | GB711 | Plate | 0.17-0.24 | 0.17-0.37 | 0.04 | 0.035 | 0.35-0.65 | 0.25 | 0.25 | Cu：0.25 | 410 | 245 | 28 | |||
| 20G | GB5310 | Pipe | 0.17-0.24 | 0.17-0.37 | 0.03 | 0.03 | 0.35-0.65 | 0.25 | 0.25 | 0.15 | Cu：0.2；V：0.08 | 410-550 | 245 | 24 | Akv J:35 | |
| 20G | GB6479 | Pipe | 0.17-0.24 | 0.17-0.37 | 0.035 | 0.035 | 0.35-0.65 | 410-550 | 245 | 24 | ak J/cm2：49 | |||||
| 20g | GB713 | Plate | 0.2 | 0.15-0.3 | 0.035 | 0.035 | 0.5-0.9 | 400-530 | 245 | 26 | Akv J:27；aku J/cm2：29 | |||||
| 20R | GB6654 | Plate | 0.2 | 0.15-0.3 | 0.03 | 0.035 | 0.4-0.9 | 400-520 | 245 | 25 | Akv J:31 | |||||
| Q235A | GB3724 | Plate | 0.14-0.22 | 0.3 | 0.05 | 0.045 | 0.3-0.65 | 375-500 | 235 | 26 | ||||||
| Q235B | GB3724 | Plate | 0.12-0.2 | 0.3 | 0.045 | 0.045 | 0.3-0.7 | 375-500 | 235 | 26 | Akv J:27 | |||||
Carbon steel pipe cooling method varies with the material. For most kinds of steel use natural cooling to meet the requirements.
Carbon steel pipe is the most commonly and widely used in the gas project field.
The large diameter coated steel pipes are widely used in tap water, natural gas, petroleum, chemical, pharmaceutical, telecommunications, electricity, large diameter steel marine engineering field generally less than the outer diameter of the tubes 89 are collectively referred to as small-diameter steel pipe.
The large diameter coated steel pipes are widely used in tap water, natural gas, petroleum, chemical, pharmaceutical, telecommunications, electricity, large diameter steel marine engineering field generally less than the outer diameter of the tubes 89 are collectively referred to as small-diameter steel pipe.
Carbon steel tube mechanical properties is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks.
Carbon steel pipe anti-rust oil: it is with a high corrosion resistance and adhesion,which does not contain harmful substances such as formaldehyde, benzene, heavy metals, environmental protection and the operator's physical and mental health.
Density is calculated by dividing the mass by the volume. The density of carbon steel is approximately 7.85 g/cm3 (0.284 lb/in3).
Improving the performance of the steel is two ways, First, adjusting the chemical composition of the steel alloying; the other is the heat treatment, heat treatment and shaping deformation combination of approaches. In the field of modern industrial technology, heat treatment to improve the performance of the steel still occupy a dominant position.
Inner diameter of seamless steel pipe is more than 6.0mm and wall thickness is less than 13mm annealed seamless steel pipe material, which can be used W-B75 Webster Hardness test with very fast, easy, suitable for rapid non-destructive of the seamless steel pipe material qualified inspection.
Low carbon steel is a type of metal that has an alloying element made up of a relatively low amount of carbon. Typically, it has a carbon content that ranges between 0.05% and 0.30% and a manganese content that falls between 0.40 and 1.5%. Low carbon steel is one of the most common types of steel used for general purposes, in part because it is often less expensive than other types of steel.
Carbon steel pipe rusting
Carbon steel pipe anti-rust oil: it is with a high corrosion resistance and adhesion,which does not contain harmful substances such as formaldehyde, benzene, heavy metals, environmental protection and the operator's physical and mental health.
Brinell hardness (HB) with a certain diameter of the steel balls or tungsten carbide balls, pressed into the pattern surface of a predetermined test force (F), after the predetermined hold time after drop test force, the diameter of the measurement sample surface indentation (L).
Steel is an alloy that mostly contains iron. But its properties can be changed to suit specific requirements by adding certain other elements.
Encountered hole problems are very common in the welding process, welding materials drying, corrosion of the base metal and welding consumables, welding process is not stable enough oil and impurities and to protect the poor will be varying degrees of blowholes.
The strip is into the welded pipe unit and by the multi-channel roll rolling, gradually rolled strip steel, formed with an opening gap round tube, adjust the amount of reduction squeeze rollers, so that the weld gap control for carbon steel pipe in 1 ~ 3mm, and to weld ends flush. If the gap is too large and will result in reduced proximity effect, eddy current lack of heat, poor weld joint between grain yield incomplete fusion or cracking.
Delivery standard length of carbon steel pipe, also known as user requirements length or the length of the contract, there are four provisions in the existing standards
Carbon steel internal defects is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks.
Carbon steel tube mechanical properties is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks.
Carbon steel defect is caused by the equipment, processes and operations in carbon steel smelting and rolling (forging) process, including scarring, cracks, residual shrinkage, layered, white point, segregation, non-metallic inclusions, such as osteoporosis and banded.