Wenzhou Zheheng Steel Industry Co.,Ltd
| Payment Terms | L/C, T/T, D/A, D/P |
| Supply Ability | 50TONS/30DAYS |
| Delivery Time | 30DAYS |
| Packaging Details | In bundles with waterproof material,or wooden crate packing |
| Product Name | Duplex Steel Pipe |
| Material | S31200 |
| Application | chemical industry |
| Standard | ASTM, GB, JIS, DIN, EN, AISI |
| Size | 6mm-325mm |
| Brand Name | Zheheng steel |
| Model Number | 88.9mm |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T, D/A, D/P | Supply Ability | 50TONS/30DAYS |
| Delivery Time | 30DAYS | Packaging Details | In bundles with waterproof material,or wooden crate packing |
| Product Name | Duplex Steel Pipe | Material | S31200 |
| Application | chemical industry | Standard | ASTM, GB, JIS, DIN, EN, AISI |
| Size | 6mm-325mm | Brand Name | Zheheng steel |
| Model Number | 88.9mm | Certification | ISO9001 |
| Place of Origin | CHINA | ||
| High Light | ATSM A790 Duplex Steel Pipe ，corrosion resistant Duplex welded Steel Pipe ，S31200 Duplex welded Steel Pipe | ||
Duplex Steel Pipe ATSM A790 S31200 High strength, corrosion resistant welded steel pipe
Product Discription:
S31200 steel is austenitic ferritic stainless steel, also known as duplex stainless steel. It is a new steel grade produced on the basis of SUS329JI steel by reducing the content of C and Cr and adding N. The steel has the advantages of high strength, resistance to chloride stress corrosion, weldability, etc., and is the best pitting resistance of duplex stainless steel.
Some of the characteristics of S31200 duplex stainless steel are as follows:
Duplex stainless steel corrosion resistant. They have strong resistance to inter-granular corrosion. Even in chloride and sulfide environments, duplex stainless steels show very high resistance to stress corrosion cracking. Duplex stainless steel work hardening alloy. Their micro-structure consists of austenitic phase and ferritic phase. Therefore, duplex stainless steel shows the characteristics of austenitic and ferritic stainless steel. This combination of properties may mean some compromise compared to pure austenite and pure ferrite.
Use of S31200 duplex stainless steel:
Because of the characteristics of S31200 duplex stainless steel, it is widely used in chemical, fertilizer, petrochemical and other industrial fields, but also used to make heat exchangers, evaporators and so on.
The components of S31200 are as follows:
| Designation | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu | Others |
| S31200 | 0.030 | 2.000 | 0.045 | 0.030 | 1.000 | 5.5-6.5 | 24.0-26.0 | 1.20-2.00 | 0.14-0.20 |
Tensile and Hardness Requirements about the S31200 Duplex steel pipe:
| Designation | Tensile Strength, min, ksi [MPa] | Yield Strength, min, ksi [MPa] | Elongation in 2 in. or 50 mm, min, % | Hardness, max | |
| HBW | HRC | ||||
| S31200 | 100 [690] | 65 [450] | 25 | 280 | |
About us:
Zheheng Steel is an excellent supplier of stainless steel pipes and other high quality industrial products. The pipeline range provided is manufactured according to national and international raw material quality standards. The industry is offering tubing in a variety of standards, sizes and specifications. According to customer requirements, we can provide various specifications of pipes according to customer requirements. Therefore, buyers can purchase products of different sizes, wall thicknesses, lengths, diameters, etc., according to their needs.
Product show:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company
Year Established:
1995
Total Annual:
6,000,000-8,000,000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Zheheng steel is one incorporate of manufacturer, Exporter ,consultant ,stockist company specialized in the area of stainless steel tubing , pipe fittings ,Flanges and other stainless steel grade accessories . It is one-stop-shop company ,our team have more than 20 years experience in sta... Zheheng steel is one incorporate of manufacturer, Exporter ,consultant ,stockist company specialized in the area of stainless steel tubing , pipe fittings ,Flanges and other stainless steel grade accessories . It is one-stop-shop company ,our team have more than 20 years experience in sta...
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