Product Description of Spiral steel pipe
Spiral pipe, also known as spiral steel pipe or spiral welded pipe, is made by rolling a strip of low carbon structural steel or low alloy structural steel into a pipe billet at a certain spiral angle (called forming angle) and then welding it. Pipe seam. It is possible to produce large diameter steel pipes from narrower steel strips.
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The outer diameter of the spiral tube is about 30 nanometers, the inner diameter is about 10 nanometers, and the pitch between adjacent spirals is about 11 nanometers. Every week of the helical tube is surrounded by 6 nucleosomes, and the H1 histone is located on the inner surface of the helical tube lumen, which plays an important role in maintaining the structure of the helical tube. Helicalization of 10 nm fibers composed of nucleosomes to form 30 nm thick fibers further compresses the DNA length by a factor of 6.
industrial pipe，Spiral pipes are mainly used for oil and natural gas pipelines, and their specifications are expressed by outer diameter * wall thickness. There are single-side welded and double-sided welded spiral pipes, and the welded pipes should ensure that the hydraulic test, the tensile strength of the weld and the cold bending performance meet the regulations.
| Specification | Steel grade | Chemical composition | Remarks | |||||
| C | Si | Mn | P | S | Ti | |||
| Pipes for pressure service ASTM A671, A672 | -/A45 | -/0.17 | - | 0.98 | 0.035 | 0.035 | - | A671/ A672 |
| -/A50 | -/0.22 | - | ||||||
| CA55/A55 | 0.28 | - | ||||||
| -/B55 | -/0.20 | 0.13 ~0.45 | ||||||
| CB60/B60 | 0.24 | |||||||
| CB65/B65 | 0.28 | |||||||
| CB70/C70 | 0.31 | 1.30 | ||||||
| -/C55 | -/0.18 | 0.55 ~0.98 | ||||||
| CC60/C60 | 0.21 | |||||||
| CC65/C65 | 0.24 | 0.79 ~1.30 | ||||||
| CC70/C70 | 0.27 | |||||||
| Products | Steel Grade | BASE METAL MECHANICAL COMPOSITION | Welding point tensile strength (N/mm2) | Remarks | |||
| Yield point (N/mm2) | Tensile Stregth (N/mm2) | Test Pieces | Elongation (%) | ||||
| Pipes for pressure service ASTM A671, A672 | -/A45 | -/165 | -/310~450 | - | -/30 | -/310~450 | A671/ A672 |
| -/A50 | -/185 | -/345~485 | -/28 | -/345~485 | |||
| CA55/A55 | 205 | 380~515 | 27 | 380~515 | |||
| -/B55 | -/205 | -/380~515 | -/27 | -/380~515 | |||
| CB60/B60 | 220 | 415~550 | 25 | 415~550 | |||
| CB65/B65 | 240 | 450~585 | 23 | 450~585 | |||
| CB70/B70 | 260 | 485~620 | 21 | 485~620 | |||
| -/C55 | -/205 | -/380~515 | -/27 | -/380~515 | |||
| CC60/C60 | 220 | 415~550 | 25 | 415~550 | |||
| CC65/C65 | 240 | 450~585 | 23 | 450~585 | |||
| CC70/C70 | 260 | 485~620 | 21 | 485~620 | |||
Product name | SSAW STEEL PIPE |
Brand Name | Kuaima |
Application | Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe, Other |
Special Pipe | API Pipe, Other, EMT Pipe, Thick Wall Pipe |
Thickness | 4MM-25MM |
Standard | EN, BS, JIS, etc |
Length | 12M, 6m, 6.4M |
Technique | SSAW |
Grade | API 5L,ASTM A36,ASTM A500 |
Surface Treatment | As customer required |
Processing Service | Bending, Welding, Decoiling, Punching, Cutting |
Application | using in natural gas, chemical, electric power, heating power |
Standard | API 5L,ASTM A53,ASTM A252 |
Diameter | 219~4064MM |
Wall Thickness | 3.2-40MM |
Length | 6-18M |
Ends | square ends or beveled for welding, beveled |
Surface | Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE |
Packing | Bare or as customer required |
Shandong Kuaima Steel Co., Ltd. has advanced special smelting, investment casting, pipe making and other production equipment. The company has 15 advanced production lines, which can independently produce Spiral steel pipe， hot/cold rolled steel, galvanized steel, galvanized steel, prepainted steel and stainless steel coils, strips, plates, plates, pipes, bars and other products. The standing inventory is more than 450,000 tons to meet the customer's demand for delivery time.
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We have professional testing equipment. We have our own testing center laboratory to guarantee the quality of our products.
thickness
width
coating quality
chromatic aberration
paint
thickness
hardness
luster
tensile strength
Yield Strength
We are a world-renowned Spiral steel pipe exporter, Qatar, Ireland, Portugal,Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Italy, Libya, Ro-Fanaticism, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Philippines, Ghana, Slovakia, Germany,Saudi Arabia, Afghanistan, China, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece,Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus,Finland, Gabon, Iran, Canada, Argentina, Lebanon. other countries
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Liaocheng Economic and Technological Development Zone, Shandong Province, China
: Echo@kuaimasteel.com
: +86-18365977887
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