Home > Products > Industrial Pipeline Series > ASTM A312m Hot Rolled S31803 DN80 Sch40 Super Duplex 2507 Square/Round Tubes 321 Stainless Steel Pipes Price
ASTM A312m Hot Rolled S31803 DN80 Sch40 Super Duplex 2507 Square/Round Tubes 321 Stainless Steel Pipes Price
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- 8 days
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Product Details
Type | Other | Technique | Hot Rolled | |
Surface Treatment | Polished | Usage | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Other | |
Material | Stainless steel | Section Shape | Round | |
Specification | Customized | Origin | China |
Product Description
Steel Plate Factory Video
Grade | SS904L,SS304,304L,316L,310S,309S,SS201,SS202,SS410,SS430 | ||
Thickness | 1mm-150mm(SCH10-XXS) | ||
O.D | 6mm-2500mm (3/8"-100") | ||
Length | 4000mm,5800mm,6000mm,12000mm,or as required. | ||
Finish | Polished,Hairline,Annealed,Pickling | ||
Technology | Seamless or Welding | ||
MOQ | 2Ton each size | ||
Packing | Export standard wooden pallets (as per requirements) | ||
Loading Port | Shanghai (any port in China) | ||
Remark | Specification can be custommized as the customer's requirements. | ||
Payment Term | T/T | EXW | 30% T/T in advance, paid the balance before shipment |
FOB | |||
CFR | 30% T/T in advance,paid the balance before shipment | ||
CIF | |||
L/C | 30% T/T in advance,Balance L/C at sight | ||
Delivery Time | 7~15days after receiving payment for one container |
ZheJiang zhongzheng stainless steel manufacturing Co.Ltd is a leading supplier of steel raw materials with over 12 years of industry expertise. Specializing in a wide range of steel products, we maintain a strong reputation in both domestic and international markets, with export sales accounting for 80% of our total business. Our company is committed to delivering high-quality materials, efficient processing, and reliable service to clients worldwide.
Core Strengths
Extensive Inventory & Production Capacity: We stock over 5,000 tons of stainless steel and offer cutting-edge processing services, including cutting and leveling, with a daily production capacity of 500 tons.
Diverse Product Specifications: Our comprehensive product range ensures quick order fulfillment, enabling fast and flexible delivery to meet customer demands.
Professional Team: A highly experienced sales team, averaging over 6 years of industry knowledge, provides expert, responsive, and solution-driven support.
Quality Assurance: Equipped with advanced testing facilities and staffed by skilled inspectors, we guarantee the highest standards of product quality and consistency.
Key Partnerships
We collaborate closely with major domestic steel mills, including TISCO, TSINGSHAN, BAOSTEEL, YONGJIN, and HONGWANG, ensuring a stable supply of premium-grade materials.
Global Reach
Our products are exported to key markets across:
Middle East: Iran, UAE, Saudi Arabia, Oman
Southeast Asia: Indonesia, Malaysia, Singapore
South America: Peru, Mexico
With a customer-centric approach and a commitment to excellence, Zhejiang zhongzheng stainless steel manufacturing continues to build trust and long-term partnerships in the global steel industry.
:Which countries you already exported to?
A:We have exported to Brazil, Chile, Russia, Iran,Singapore,UAE,Saudi Arabic,Qatar,Thailand,Vietnam,Indonesia and so on.
Very rish experience we have,expert Sales and quality team with 6+ Years steel xperience.
Q:Do you provide Customized Production service?
A:It is our professional job,we can manufacture according to your requirement.
Q:What is your delivery time?
A:7-10 days for stock,but Customized production or large quantity,it maybe longer
Q:Can we visit your company?
A:We are deeply honored,welcome to our company.
Q:Does the product have quality inspection before loading?
A:Yes,we have professional quality team and test machine or by third party to inspect all the goods to meet standard.
Q:How to pack the products?
A:Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet.
It is strong enough to keep the goods safe during ocean transportation
Company Profile

Zhongzheng Stainless Steel Co., Ltd. is a China-based manufacturer specializing in R&D, production, and distribution of stainless steel products. Established in the early 2000s, it serves industries including construction, machinery, food/medical equipment, and energy with precision tubes, sheets, profiles, and custom components.
Contact Us
- Zhongzheng Stainless Steel Co., Ltd.
- Contact nameLaijing Bu Chat Now
- AddressRoom 104-07, Building 5, Jinghu Technology Park Huanajinghu Garden, Donglihu Subdistrict Dongli District,
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