Product parameters
Hot-rolled seamless steel pipe is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, geological steel pipe and other steel pipes.
In addition to general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, other steel pipes, also includes carbon thin-wall steel pipe, alloy thin-wall steel pipe, stainless thin-wall steel pipe, special-shaped steel pipe.
Hot-rolled steel pipes are delivered in hot-rolled or heat-treated condition;
Hot rolled seamless steel pipe production process:
Tube blank → heating → perforation → three-high skew rolling and continuous rolling → Stripping → sizing → Cooling → straightening → hydraulic test → marking → lever effect seamless steel pipe in storage will be detected.
Cold-drawn seamless steel pipe production process:
Tube blank → heating → perforating → heading → annealing → pickling → oiling → multi-pass cold drawing → Tube blank → Heat treatment → straightening → hydraulic test → marking → storage. The wall thickness of cold-drawn seamless steel pipe is better than that of hot-rolled seamless steel pipe, and the surface roughness is also some.
Product information:
| Product Name | ASTM A53/A36 Thick wall seamless pipe |
| Standard | EN/DIN/JIS/ASTM/BS/ASME/AISI etc. |
| More material type | 10# 20# 45# Q235 20G 20MnG 25MnG A36 A53 A106 A333 A335 A336 A179 S235 S355 SA179 SA192 SA210 SA179
DIN17175 DIN2391 DIN16229 Q235 Q195 Q345 16Mn 20Cr 40Cr 12CrMo 15CrMo 20CrMo 30-35CrMo 42CrMo
STPY41 STPG38 STB30 STB33 STB35 STPT42 St35 St37 St44 St45.8 15Mo3 13CrMo44 10CrMo910 |
| Outer Diameter | Seamless: 1/4"-36" | Welding: 21.3mm-3620mm |
| Round Tube: 1/2"-10" | Square Tube/Rectangular Tube: 15x15mm-400x600mm |
| Wall Thickness | Seamless: 1.25mm-50mm | Welding: 1.65mm-65mm |
| Length | 3-12 meters, Support customization |
| Surface Process | Bright, Polished, Black |
| Certificate | CE, tisi, KS, JIS, GS, ISO9001 |
| Delivery Time | within 7 days |
| Other Services | Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc. |
Chemical Composition（%）
| A53 | Grade | C | Mn | P | S | Cu | Ni | Cr | Mo | V |
| TypeS(Seamless) | A | 0.25 | 0.95 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| B | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| TypeE(Resistance Welding) | A | 0.25 | 0.95 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| B | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| TypeF(Furnace Welding) | A | 0.3 | 1.2 | 0.05 | 0.05 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
Mechanical Properties:
| A53 | GradeA | GradeB |
| Tensile Strength Min.psi(MPa) | 48,000(330) | 60,000(415) |
| Yield Strength Min.psi(MPa) | 30,000(205) | 35,000(240) |
Physical Performance
| Density 20°CKg/dm³ | Modulus of Elasticity Kn/² mm | Coefficient of Thermal Conductivity 20°CW/m K | Heat Capacity 20°CJ/kg K | Resistivity 20°CΩmm²/m |
| 20C° | 300C° | 400C° | 450C° |
| 7.85 | 210 | 192 | 184 | 179 | 51 | 461 | 0.20 |
---------------------------------------------------------------------------------
ASTMA36 is an American standard carbon structural plate, which implements ASTMA36 /A36M-03a standard.
Chemical Composition（%）
| A36 | C | Si | Mn | P | S | Cu |
| ≤0.25 | ≤0.40 | ≤0.80-1.20 | ≤0.04 | ≤0.05 | ≥0.20 |
Mechanical properties:
Tensile strength (σb/MPa):490-630 —— Yield strength (σb/MPa) : ≥355 —— Elongation (δ/%) : ≥21
| Hot rolled seamless pipe | Low pressure fluid transfer welded steel pipe | Spiral seam submerged arc welded steel pipe |
| Restoring menstrual flow | Outside diameter/mm | Wall thickness/mm | Normal length | Restoring menstrual flow | Outside diameter/mm | Wall thickness/mm | Normal length | Restoring menstrual flow | Outside diameter/mm | Wall thickness/mm | Normal length |
| DN40 | 43 | 3.0 | The general length is
6 m /9 m /10 m | DNI5(1/2”) | 21.3 | 2.75 | The general length is
6 m/8m | DN200 | 219 | 6 | The general length is
12m |
| DN50 | 57 | 3.0 | DN20(3/4”) | 26.8 | 2.75 | DN250 | 273 | 6 |
| 60 | 3.0 | DN25(1") | 33.5 | 3.25 | DN300 | 325 | 6 |
| DN65 | 73 | 3.5 | DN32(1-1/4”) | 42.3 | 3.25 | DN350 | 377 | 6 |
| 76 | 3.5 | DN40(1-1/2”) | 48.0 | 3.50 | DN400 | 426 | 6 |
| DN80 | 89 | 3.5 | DN50(2") | 60.0 | 3.50 | DN450 | 480 | 8 |
| DN100 | 108 | 4.0 | DN65(2-1/2”) | 75.5 | 3.75 | DN500 | 529 | 8 |
| DN125 | 133 | 4.0 | DN80(3”) | 88.5 | 4.00 | DN600 | 630 | 8 |
| DN150 | 159 | 4.5 | DN100(4”) | 114.0 | 4.00 | DN700 | 720 | 10 |
| DN200 | 219 | 6.0 | DN125(5”) | 140.0 | 4.50 | DN800 | 820 | 10 |
| DN250 | 273 | 7.0 | DN150(6”) | 165 | 4.50 | DN900 | 920 | 10 |
| DN300 | 325 | 8.0 |
|
|
| DN1000 | 1020 | 10 |
Our main products are all kinds of carbon steel, stainless steel, alloy, pre-coated sheet, pipe, parts and other products. If you have other related steel products, please send an email to our company's main mailbox, we will have a professional sales manager in the first time to reply.