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- FAQ
Basic Info.
Product Description
Seamless steel pipe is a kind of strip steel. Steel pipe with hollow cross-section, a large number of pipes used to transport fluid, such as the transportation of oil, natural gas, gas, water and some solid materials such as pipes. Steel and round steel and other solid steel compared to the same bending strength in the same bending, lighter weight, is an economic section of steel, is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, Bicycle frames and steel construction scaffolding. The use of carbon seamless steel pipe manufacturing ring parts can improve material utilization, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jackets, etc., has been widely used to manufacture steel pipe.
Sizes:
Maximum diameter: 36" (914.4mm) minimum diameter: 1/2" (21.3mm)
Maximum thickness: 60mm mininmum thickness: 2.11mm
SCH: SCH10,SCH20,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,SCH160,XXS
Uses:
| Chilled water pipe | Steam/condensate pipe | Heat exchanger pipe | Marine/offshore pipe | Dredging pipe | Industrial pipe |
| Oil and gas pipe | Fire fighting pipe | Construction/structure pipe | Irrigation pipe | Drain/sewage pipe | Boiler tube |
Coating:
| 3PE Coating | 3PP Coating | FBE Coating | Epoxy Coating | Special Painting |
Standard of carbon seamless steel pipe
| 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 components & mechanical properties
| Standard | Grade | Chemical Components (%) | Mechanical Properties | ||||||
| ASTM A53 | C | Si | Mn | P | S | Tensile STrength(Mpa) | Yield STrength(Mpa) | ||
| 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 SA179 | A179 | 0.06-0.18 | - | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | |
| ASTM SA192 | A192 | 0.06-0.18 | ≤0.25 | 0.27-0.63 | ≤0.035 | ≤0.035 | ≥325 | ≥180 | |
| API 5L PSL1 | A | 0.22 | - | 0.90 | 0.030 | 0.030 | ≥331 | ≥207 | |
| B | 0.28 | - | 1.20 | 0.030 | 0.030 | ≥414 | ≥241 | ||
| X42 | 0.28 | - | 1.30 | 0.030 | 0.030 | ≥414 | ≥290 | ||
| X46 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥434 | ≥317 | ||
| X52 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥455 | ≥359 | ||
| X56 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥490 | ≥386 | ||
| X60 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥517 | ≥448 | ||
| X65 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥531 | ≥448 | ||
| X70 | 0.28 | - | 1.40 | 0.030 | 0.030 | ≥565 | ≥483 | ||
| API 5L PSL2 | B | 0.24 | - | 1.20 | 0.025 | 0.015 | ≥414 | ≥241 | |
| X42 | 0.24 | - | 1.30 | 0.025 | 0.015 | ≥414 | ≥290 | ||
| X46 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥434 | ≥317 | ||
| X52 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥455 | ≥359 | ||
| X56 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥490 | ≥386 | ||
| X60 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥517 | ≥414 | ||
| X65 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥531 | ≥448 | ||
| X70 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥565 | ≥483 | ||
| X80 | 0.24 | - | 1.40 | 0.025 | 0.015 | ≥621 | ≥552 | ||
Classfication of carbon seamless steel pipe
| Types | Application |
| Structure Purposes | General structure and mechanical |
| Liquid Services | Petroleum, gas and other fluids conveying |
| Low and Medium Pressure Boiler Tube | Steam and boiler manufacturing |
| Hydraulic Pillar Service | Hydraulic support |
| Auto Semi-shaft Casing | Auto sem-shaft casing |
| Line Pipe | Oil and gas conveying |
| Tubing and Casing | Oil and gas conveying |
| Drill Pipes | Well drilling |
| Geological Drilling Pipe | Geological drilling |
| Furnace tubes, heat exchangers tubes | Furnace tubes, heat exchangers |
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% |
We have own our factory and our company is committed to the production of seamless steel pipe, we have 3 advantage for seamless steel pipe:
Shandong Huazhu Metal Manufacture Co,.Ltd. Our Company has 227 employees including 20 professional and technical engineers. The company has eight extrusion production lines, annual production capacity reach to 20 thousand tons. we are specialized in construction profiles, decorative profiles, and industrial profiles . We have advanced anodized workshop, large powder coating workshop,electrophoresis workshop, wood grain transfer printing workshop, thermal break processing workshop . Various profiles with different surface can meet customer demand.We also welcome OEM and ODM orders.Our products sell well in domestic market, and are also exported to Southeast Asia,Africa,Europe and the Middle East. we have advanced quality management system and obtained ISO 9001,ISO 14001 and G B/T28001,SGS certificates. Our company insists on the policy that "customer is the supreme, prestige promised, quality guaranteed, professional service ". We are looking forward to establish a long-term business with overseas customers based on mutual benefits. If you are interested in our products or our company, please feel free to contact us for more details!
Trade Cases:
| Mexico ASTM A500 Gr. 50 Ø12"x 10.31mmx12m 365 Tons | Spain AISI 316L 219,1 mm X 5 mm 12060 meters | Singapore Black Steel Pipe 1/2"-12" SCH40 3502 PCS | Morocco ASTM A-213 |
UAE ASTM A106-B2"-6" SCH40 1025.36 Tons | Iraq API 5L X42 PSL-2 NPS 4" / 114,3 mm OD x 7,11 mm 3500 Tons (tender) | Zambia ASTM A333 GRADE 6 2 IN, 12.9 MM 6M LONG 425 PCS | Saudi Arabia API 5L gr.b 10" Nom; SCH 80 18560 meters |
Vietnam DIN 2391Φ3/4" SCH40 6m long 167 pcs | Nigeria A-53 GR-B 1"-6" SCH40 / 80 20590 meters (Project) | UAE API 5L X52 line pipes 8"-24" x 9.53mmx 12m 4501 Tons | Columbia A 53 Gr B 600 MM dia, Sch 20 263 tons |
| United Arab Emirates PIPE, C.S, SEAMLESS SCH.60 SIZE: 16 INCH 7000 METER | Vietnam SEAMLESS PRECISION TUBE OD = 25mm, Thick 3mm, Material: SS304 Qty # 10200 Meter | Vietnam ASTM-A269, TP316/316L 1/2" OD x 0.049" Qty: 1050 M | Iran API 5L GR.B OD 10.750 IN., SCHED NO. 80 480 Tons |
| Malaysia ASTM A179 GRADE 79 19.05X2.03X1450MM 187 PCS | Nigeria API5L X52 CHS141.3MMX6.55MMX6M 4100 METERS | Turky AISI 4130- 2 Length (6meter) 3" Sch XXH BW, Nace 21300 METERS | Colombia ASTM A106 4", SCH-XXS (WT 17.1 MM)Length 20FT 1000.8 TONS |
| Myanmar ASTM A-53 SCH40 /steel pipe - 2 1/2'' 9 000 m | Singapore 13CrMo44 Ø220 x 14*7300mm 200 pcs | Jordan Steel Grade: SAE 1541 63 OD x 25 ID MM 600 MT | Bangladesh GR.B API5L ASTM A53 ½"-6" SCH40 6 METER LENGTH 350 TONS |
| Indonesia ASTM A53 Black steel 4" & 6" & 7" SCH40 15000 METERS | Mexico Galvanised seamless tubes din 2440 st33.2 21,3x2.65mm 500 units | South Africa 304L 7.11*168.3*5800mm 360 pcs | Australia Material: ASTM A179 19.05 mm O.D. X 2.11mm X 6096mm 20,000 PCS |
| Thailand Seamless casing tube J55 or K55 13 "3/8 54.5lbs / ft 9.65 WT 1000 meters | Brazil ASTM A501 O.D 88.3 x 5.0 mm 6M/pcs 1,000 pcs | Saudi Arabia API 5L Gr X42 168.3X11MM 35000M | Oman SS 304 Seamless tube 10X1MM 3mtr per Piece 400 PCS |
| Macedonia ASTM A790 S31803 33.4×3.38MM, 114.3×6.02 4000 METERS, 210 PCS | Russia EN 10216-2, STEEL GRADE P265 GH 219.710mm X W/T: 8.306mm lENGTH: 6 MTR 3000 MTR | France ASTM A106 Gr.B OD 60.3 x 11.07mm thk x 6000mm 1000 EA | pain L-80 Type 1, PSL-2 Tubing 4 1/2" OD,12.6 PPF 70 km |
| Iraq Seamless elbow 273.0 x 6.3 500 pieces | Morocco API 5L B,DIN 30670 coating DN 200,150 SCH 40 in lengths of 12 m 1000 Meters | Georgia JIS G3454 STPG 370 65A x Sch40 x 6M 1300 PCS x 6mtrs | Panama API 5L X52 6 inch, thickness: 11.7mm 140Km |
Good review from my customer
1.What kind of work does your company do?
Our company is a professional manufacturer.
We mainly produces stainless steel plate/pipe/coil/lead round bars,as well as galvanized plate/pipe/coil/lead wire/corrugated sheet,etc.
Yes, we can provide free sample for testing,buyer should bear all the shipping costs.
3.How long is your delivery time?
Generally it is 3-7 days if the goods are in stock or it is 7-15 days if the goods are not in stock, it is according to quantity.
4.How can we guarantee quality?
Always a pre-production sample before mass production;always final Inspection before shipment.
5.Why should you buy from us not from other suppliers?
Diversified products, direct supply from manufacturer.
6.What is your terms of payment ?
We accept T/T, L/C , Western union, paypal, etc.
The payment method can be negotiated by both parties according to the actual situation.