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Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
FAX: 86-22-25343802
CELL: 86-18526839451, 86-18526839452
EMAIL: admin@wanleipipe.com
WEBSITE: www.seamlesscarbonsteelpipe.com
ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)
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20# Seamless Steel Pipe For Liquid Service
Our company is specialized for producing and supplying high quality seamless steel pipes. And pipes of standard size and customized size can be choosed by clients. We will provide best service for clients.
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of 20# seamless steel pipe for liquid service in China, featured by quality products and low price. If you're going to wholesale durable 20# seamless steel pipe for liquid service made in China, welcome to get pricelist and free sample from our factory.
GB/T 8163 20# seamless steel pipe for liquid service
Used to transport the petroleum, the natural gas,and other general fluid.
Seamlesss steel tube of petroleum cracking.
Seamless steel pipe is one of hot sale products in our company. In our company, standard size and customized size can be choosed by clients.
We can provide one-stop service for clients from inquiry, quote, production to packing, shipment, after-sales feedback.
20# seamless steel pipe introduction
Tolerance of outer diameter (unit: mm)
| Type of steel pipes | tolerance |
| hot rolled (Extruded, hot expand) | ±1%D or ±0.50, Whichever is greater |
| cold drawn(rollded) | ±1%D or ±0.50, Whichever is greater |
Thickness tolerance of Hot rolled(extruded, hot expand) steel pipe (unit:mm)
| Type | OD | S/D | Tolerance |
| hot rolled (Extruded) | ≤102 | - | ±12.5%S or ±0.40, whichever is greater |
| ＞102 | ≤0.05 | ±15%S or ±0.40, whichever is greater | |
| ＞0.05-0.10 | ±12.5%S or ±0.40, whichever is greater | ||
| ＞0.10 | +12.5%S -10%S | ||
| hot expand | - | ±15%S | |
Thickness tolerance of cold drawn (rolled) steel pipe (unit:mm)
| Type | Thickness | Tolerance |
| Cold drawn (rolled) | ≤3 | +15%S, -10%S or ±0.15, whichever is greater |
| ＞3 | +12.5%S, -10%S |
Mechanical properties
| Grade | Tensile strength, Rm/MPa | Yield point, ReL/MPa | Elongation, A/% | ||
| Thickness/mm | |||||
| ≤16 | ＞16-30 | ＞30 | |||
| ≥ | |||||
| 20# | 410-530 | 245 | 235 | 225 | 20 |
Chemical composition (%)
| Grade | C | Si | Mn | P, ≤ | S, ≤ | Cr, ≤ | Ni, ≤ | Cu, ≤ |
| 20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.030 | 0.030 | 0.25 | 0.30 | 0.25 |
Packing
From 1/8" to 6" Small diameter steel pipes: in bundles with steel strip, at least three steel strips for each bundle.
Larger than 6" steel pipes: Each pipe had 2PCS of cotton ropes wrapped around at pipe ends for protection.
Each pipe end is protected by plastic caps or protector.
Other types packing way can be advised by clients.
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