TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, |
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-40days |
| Packaging Details | In bundles or in wooden boxes. |
| Section shape | Round,Square,Rectangular,Round/Square/Rectangular/Oval.etc |
| Secondary or not | Non-secondary |
| Technique | ERW SAWL |
| Application | Coal Slurry |
| Surface treatment | Galvanized |
| Alloy or not | Non-alloy |
| Standard | GB |
| Grade | L245J/BJ; L290J/X42J; L320J/X46J; L360J/X52J; L390J/X56J |
| Surface | Galvanized Coated |
| Product name | Galvanized Square Steel Pipe/Tube,ERW steel pipes,galvanized round pipe |
| Usage | Coal Slurry |
| Brand Name | TORICH |
| Model Number | GB/T 31937 |
| Certification | ISO9001 ISO14001 TS16949 |
| Place of Origin | ZheJiang/China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, | Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-40days | Packaging Details | In bundles or in wooden boxes. |
| Section shape | Round,Square,Rectangular,Round/Square/Rectangular/Oval.etc | Secondary or not | Non-secondary |
| Technique | ERW SAWL | Application | Coal Slurry |
| Surface treatment | Galvanized | Alloy or not | Non-alloy |
| Standard | GB | Grade | L245J/BJ; L290J/X42J; L320J/X46J; L360J/X52J; L390J/X56J |
| Surface | Galvanized Coated | Product name | Galvanized Square Steel Pipe/Tube,ERW steel pipes,galvanized round pipe |
| Usage | Coal Slurry | Brand Name | TORICH |
| Model Number | GB/T 31937 | Certification | ISO9001 ISO14001 TS16949 |
| Place of Origin | ZheJiang/China | ||
| High Light | Pipeline Carbon Welded Steel Pipe ，SAW Carbon Welded Steel Pipe | ||
The GB/T 31937 standard specifies the requirements for L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, and L390J/X56J carbon welded steel pipes used in the construction of pipelines for coal slurry transportation. This article provides an overview of the material, specification, chemical composition, mechanical properties, and application of these steel pipes.
The L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, and L390J/X56J steel pipes specified in GB/T 31937 are made from carbon steel. Carbon steel is a widely used material in the construction industry due to its excellent mechanical properties and cost-effectiveness.
The GB/T 31937 standard outlines the specifications for the L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, and L390J/X56J carbon welded steel pipes. These specifications include dimensions, tolerances, and technical requirements to ensure the pipes meet the necessary standards for coal slurry pipeline construction.
The following table presents the chemical composition of the L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, and L390J/X56J carbon welded steel pipes:
| Grade | Chemical Composition (%) |
|---|---|
| L245J/BJ | C: ≤0.22, Si: ≤0.45, Mn: 0.45-1.40, P: ≤0.025, S: ≤0.015 |
| L290J/X42J | C: ≤0.22, Si: ≤0.45, Mn: 1.30-1.70, P: ≤0.025, S: ≤0.015 |
| L320J/X46J | C: ≤0.22, Si: ≤0.45, Mn: 1.40-1.70, P: ≤0.025, S: ≤0.015 |
| L360J/X52J | C: ≤0.22, Si: ≤0.45, Mn: 1.40-1.70, P: ≤0.025, S: ≤0.015 |
| L390J/X56J | C: ≤0.22, Si: ≤0.45, Mn: 1.40-1.70, P: ≤0.025, S: ≤0.015 |
The mechanical properties of the L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, and L390J/X56J carbon welded steel pipes are as follows:
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|
| L245J/BJ | ≥245 | 415-760 | ≥22 |
| L290J/X42J | ≥290 | 415-760 | ≥20 |
| L320J/X46J | ≥320 | 435-760 | ≥18 |
| L360J/X52J | ≥360 | 460-760 | ≥16 |
| L390J/X56J | ≥390 | 490-760 | ≥14 |
The L245J/BJ, L290J/X42J, L320J/X46J, L360J/X52J, and L390J/X56J carbon welded steel pipes specified in GB/T 31937 are primarily used for the construction of pipelines for coal slurry transportation. These pipes are designed to withstand the harsh conditions and high-pressure environments encountered in coal slurry pipelines, ensuring efficient and reliable transportation of coal slurry.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Company Overview A Professional Steel Tube Manufacturer and Solution Provider TORICH INTERNATIONAL LIMITED integrates steel tube manufacturing, international trade, warehousing, technical support and customized processing. Our manufacturing operations cover cold drawing, cold rolling, heat treat... Company Overview A Professional Steel Tube Manufacturer and Solution Provider TORICH INTERNATIONAL LIMITED integrates steel tube manufacturing, international trade, warehousing, technical support and customized processing. Our manufacturing operations cover cold drawing, cold rolling, heat treat...
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