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Seamless carbon steel pipes are made of steel ingots or solid tube blanks perforated into capillary tubes and then made by hot rolling, cold rolling, or cold drawing, which have excellent durability and corrosion resistance characteristics.
Carbon Steel Seamless Pipe Uses
- Carbon Steel Seamless Pipes used in Textile machinery.
- Carbon Steel Seamless Pipes used in the Oil and gas industry
- Carbon Steel Seamless Pipes Uses in Medical Gas Pipeline Systems
- Carbon Steel Seamless Pipes used in the Pharmaceutical processing industry
- Carbon Steel Seamless Pipes Used in Fluid piping.
- Carbon Steel Seamless Pipes Used in Modern architecture.
- Carbon Steel Seamless Pipes Used in Water waste projects.
Application
Carbon steel seamless pipes are extensively applied in the nuclear device, gas conveyance, petrochemical, shipbuilding, and boiler industries, with characteristics of high corrosion resistance combined with suitable mechanical properties.
| NOMINAL PIPE SIZE | OD (mm) | NOMINAL WALL THICKNESS | |||||||||||||
| DN | NB(inch) | ASME | SCH10 | SCH20 | SCH30 | STD | SCH40 | SCH60 | XS | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | XXS |
| 15 | 1/2" | 21.3 | 2.11 | 2.41 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 7.47 | |||||
| 20 | 3/4" | 26.7 | 2.11 | 2.41 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 7.82 | |||||
| 25 | 1" | 33.4 | 2.77 | 2.9 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 9.09 | |||||
| 32 | 1.1/4" | 42.2 | 2.77 | 2.97 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 9.7 | |||||
| 40 | 1.1/2" | 48.3 | 2.77 | 3.18 | 3.68 | 3.68 | 5.08 | 5.08 | 7.14 | 10.15 | |||||
| 50 | 2" | 60.3 | 2.77 | 3.18 | 3.91 | 3.91 | 5.54 | 5.54 | 8.74 | 11.07 | |||||
| 65 | 2.1/2" | 73 | 3.05 | 4.78 | 5.16 | 5.16 | 7.01 | 7.01 | 9.53 | 14.02 | |||||
| 80 | 3" | 88.9 | 3.05 | 4.78 | 5.49 | 5.49 | 7.62 | 7.62 | 11.13 | 15.25 | |||||
| 90 | 3.1/2" | 101.6 | 3.05 | 4.78 | 5.74 | 5.74 | 8.08 | 8.08 | |||||||
| 100 | 4" | 114.3 | 3.05 | 4.78 | 6.02 | 6.02 | 8.56 | 8.56 | 11.13 | 13.49 | 17.12 | ||||
| 125 | 5" | 141.3 | 3.4 | 6.55 | 6.55 | 9.53 | 9.53 | 12.7 | 15.88 | 19.05 | |||||
| 150 | 6" | 168.3 | 3.4 | 7.11 | 7.11 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | |||||
| 200 | 8" | 219.1 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 10.31 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 250 | 10" | 273 | 4.19 | 6.35 | 7.8 | 9.27 | 9.27 | 12.7 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 25.4 |
| 300 | 12" | 323.8 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.7 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 |
| 350 | 14" | 355.6 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.7 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | |
| 400 | 16" | 406.4 | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 16.66 | 12.7 | 21.44 | 26.19 | 30.96 | 36.53 | 40.19 | |
| 450 | 18" | 457.2 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.7 | 23.83 | 39.36 | 34.93 | 39.67 | 45.24 | |
| 500 | 20" | 508 | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 20.62 | 12.7 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | |
| 550 | 22" | 558.8 | 6.35 | 9.53 | 12.7 | 9.53 | 22.23 | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | ||
| 600 | 24" | 609.6 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.7 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | |
| 650 | 26" | 660.4 | 7.92 | 12.7 | 9.53 | 12.7 | |||||||||
| 700 | 28" | 711.2 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||
| 750 | 30" | 762 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||
| 800 | 32" | 812.8 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||
| 850 | 34" | 863.6 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||
| 900 | 36" | 914.4 | 7.92 | 12.7 | 15.88 | 9.53 | 19.05 | 12.7 | |||||||
| Tolerances of Carbon Seamless Steel Pipe | ||
| Pipe types | Pipe sizes(mm) | Tolerances |
| Hot rolled | OD<50 | ±0.50mm |
| OD≥50 | ±1% | |
| WT<4 | ±12.5% | |
| WT 4~20 | +15%, -12.5% | |
| WT>20 | ±12.5% | |
| Cold drawn | OD 6~10 | ±0.20mm |
| OD 10~30 | ±0.40mm | |
| OD 30~50 | ±0.45 | |
| OD>50 | ±1% | |
| WT≤1 | ±0.15mm | |
| WT 1~3 | +15%, -10% | |
| WT >3 | +12.5%, -10% | |
| STANDARD | |
ASTM A53 Gr.B | Black and hot-dipped zinc-coated steel pipes welded and seamless |
ASTM A106 Gr.B | Seamless carbon steel for high temperature service |
ASTM SA179 | Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes |
ASTM SA192 | Seamless carbon steel boiler tubes for high pressure |
ASTM SA210 | Seamless medium-carbon boiler and superheater tubes |
ASTM A213 | Seamless alloy-steel boiler, superheater, and heat-exchanger tubes |
ASTM A333 GR.6 | Seamless and welded carbon and alloy steel pipe intended for use at low temperatures. |
ASTM A335 P9,P11,T22,T91 | Seamless ferritic alloy-steel pipe for high-temperature service |
ASTM A336 | Alloy steel forgings for pressure and high-temperature parts |
ASTM SA519 4140/4130 | Seamless carbon for mechanical tubing |
API Spec 5CT J55/K55/N80/L80/P110/K55 | Seamless steel pipe for casing |
API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70 | Seamless steel pipe for line pipe |
DIN 17175 | Seamless steel tube for elevated temperture |
DN2391 | Cold drawn seamless prevision pipe |
DIN 1629 | Seamless circular unalloyed steel tubes subject to special requirements |
| Chemical Composition and Mechanical Properties | ||||||||
Standard | Grade | Chemical Components (%) | Mechanical Properties | |||||
C | Si | Mn | P | S | Tensile STrength(Mpa) | Yield STrength(Mpa) | ||
ASTM A53 | A | ≤0.25 | - | ≤0.95 | ≤0.05 | ≤0.06 | ≥330 | ≥205 |
B | ≤0.30 | - | ≤1.2 | ≤0.05 | ≤0.06 | ≥415 | ≥240 | |
ASTM A106 | A | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥415 | ≥240 |
B | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≥485 | ≥275 | |
ASTM A179 | A179 | 0.06-0.18 | - | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 |
ASTM A192 | A192 | 0.06-0.18 | ≤0.25 | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 |
API 5L PSL1 | A | 0.22 | - | 0.9 | 0.03 | 0.03 | ≥331 | ≥207 |
B | 0.28 | - | 1.2 | 0.03 | 0.03 | ≥414 | ≥241 | |
X42 | 0.28 | - | 1.3 | 0.03 | 0.03 | ≥414 | ≥290 | |
X46 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥434 | ≥317 | |
X52 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥455 | ≥359 | |
X56 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥490 | ≥386 | |
X60 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥517 | ≥448 | |
X65 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥531 | ≥448 | |
X70 | 0.28 | - | 1.4 | 0.03 | 0.03 | ≥565 | ≥483 | |
API 5L PSL2 | B | 0.24 | - | 1.2 | 0.025 | 0.015 | ≥414 | ≥241 |
X42 | 0.24 | - | 1.3 | 0.025 | 0.015 | ≥414 | ≥290 | |
X46 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥434 | ≥317 | |
X52 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥455 | ≥359 | |
X56 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥490 | ≥386 | |
X60 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥517 | ≥414 | |
X65 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥531 | ≥448 | |
X70 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥565 | ≥483 | |
X80 | 0.24 | - | 1.4 | 0.025 | 0.015 | ≥621 | ≥552 | |
Product Name: SMLS Pipe, CS Pipe
Standard: ASTM A106/A53/A500/ASME SA106/SA53/DIN1629/JIS G3444/G3445/G3452
Certificate: ISO 9001, ISO 14001, ISO 45001, CE
Out Diameter: 1/8 - 36inch (10.3-914.4mm)
Wall Thickness: 1.25 - 50mm
Length: Random Length, Fixed Length, SRL, DRL
ASTM A53/ASTM A106: GR A, GR B, GR CASME
ASME A500: GR.A, GR.B, GR.C, GR.D
End: Plain End, Beveled End, Threaded One End, TBE (Threaded Both Ends)
Delivery Condition: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Surface Finish: No.1, No.4, No.8 Mirror Finish, 2B
Chemical Analysis, Mechanical Test, Visual Inspection, Tension Test, Dimension Check, Bend Test, Flattening Test, Impact Test, DWT Test, NDT Test, Hydrostatic Test, Hardness Test
Hot Rolling Seamless Steel Line Pipe Manufacturing Process:
Rolled Round Billets - Examination - Cut Off - Heating - Piercing - Elongation - Slight Tension Reducing - Straightening - Corp End Cutting Off - Visual Inspection - NDT - Hydrostatic Test - Ends Procession - Product Inspection - Painting and Marking - Packing - Warehousing
Cold Drawn (Rolled) Seamless Steel Pipe Manufacturing Process:
Mother pipe (Normally for hot rolled pipe) - Inspection - Annealing - Ends Treatment (Hitting and Drilling hole) - Pickling - Grinding - Phosphorization (Annoit) - Cold Drawn (Rolled) - Degreasing and Cleaning - Heat treatment (Solution treatment) - Straightening - Hydrostatic test - Painting and Marking - Warehousing
Q: Are you a manufacturer?
A: Yes, we are a manufacturer, we have our own factory, and we are leading in producing and exporting steel pipes, galvanized steel pipes, hollow profiles, galvanized hollow profiles, etc. We guarantee that we are what you are looking for.
Q: Can we visit your factory?
A: Warmly welcome, we will pick you up once we get your schedule.
Q: Do you have quality control?
A: Yes, we have obtained BV and SGS certification.
Q: Can you arrange shipment?
A: Of course, we have a fixed freight forwarder, can get the best price from most shipping companies, and provide professional service.
Q: How long is your delivery time?
A: The specific time depends on the quantity you purchase.
Q: How can we get a quotation?
A: Please provide product specifications, such as material, size, shape, etc., so that we can give the best quotation.
Q: Can we get some samples? Is it charged?
A: Yes, we can provide samples for free, but do not pay for the freight. If you place an order after confirming the sample, we will refund your express freight or deduct it from the order amount.
Q: How can we pay?
A: Accepted delivery terms: FOB, CFR, CIF, EXW, FCA, DDP, DDU, Express; Accepted payment methods: T/T, L/C, Credit Card, Western Union, Cash
