📋 Basic Info.
Surface Treatment
Pickled, Bright Annealed, Polished
Product
Duplex Stainless Steel Pipe Un S31803, S32507
Application
Oil, Gas, Water and Chemical Medium
Wall Thickness
0.6mm-100mm
End Type
Plain, Bevel, Threaded
Inspection
ISO, RoHS, TUV, SGS, BV
⚙️ Product Parameters
ASTM A789 S32750 Bright Annealed Tube is a high-performance super duplex stainless steel tube known for its excellent corrosion resistance, high strength, and superior toughness. It is widely used in chemical, petrochemical, and marine industries due to its reliability in harsh environments.
- Standard: ASTM A789 Standard Specification for Seamless and Welded Super Duplex Stainless Steel Tubing
- Finish: Bright Annealed, offering a smooth and clean surface
- Corrosion Resistance: Pitting, crevice corrosion, and stress corrosion cracking resistance
Equivalent Grade Table
| Alloy |
UNS Designation |
Werkstoff NR. |
Specifications |
AFNOR |
Grade |
Ref |
| 2507 |
S32750 |
1.4410 |
A/SA789 |
Z3 CN 25.06 Az |
F53 |
X2 Cr Ni MoN 25.7.4 |
Chemical Composition (%)
| Grade |
C (max) |
Si (max) |
Mn (max) |
P (max) |
S (max) |
Cr |
Ni |
Mo |
N |
| UNS S32750 |
0.030 |
0.8 |
1.2 |
0.030 |
0.015 |
24.0-26.0 |
6.0-8.0 |
3.0-5.0 |
0.24-0.32 |
| UNS S31803 |
0.030 |
1.0 |
2.0 |
0.020 |
0.020 |
21.0-23.0 |
4.5-6.5 |
2.5-3.5 |
0.08-0.20 |
🏭 Production Line
📸 Product Display
🚀 Industrial Applications
Chemical Industry
Ideal for transporting corrosive chemicals, acids, and gases due to high corrosion resistance.
Oil & Gas
Suitable for harsh environments and high-pressure transport of hydrocarbons and gases.
Food & Beverage
Hygienic properties make it perfect for food processing and product transportation.
Pharmaceutical
Ensures product purity during the manufacturing and transport of chemicals and solvents.
Power Generation
Used for high-temperature steam and water transport in power plants.
Aerospace
Valued for lightweight properties, high strength, and reliability in aircraft components.
📦 Packaging & Delivery
💎 Our Advantages
1 Full bank support with a perfect line of Credit "AAAAA"
2 Certified quality management systems including ISO standards
3 Highly competitive pricing levels globally
4 Flexible payment terms: L/C, T/T, OA, DP
5 Efficient logistical and shipping chains via yearly agreements with main NVOCCs
❓ Frequently Asked Questions
Q1: What's your minimum order quantity?
A: Our minimum quantity is 500 Kg. We also offer samples for quality evaluation.
Q2: What is the typical delivery lead time?
A: Normal delivery time is 7-30 days, depending on quantity and specific items. Urgent orders can be prioritized.
Q3: How are your product prices determined?
A: Prices are based on material grade, size, quantity, and physical performance. Detailed information helps us provide the most reasonable quote.
Q4: What is your after-sales service policy?
A: We handle claims through replacement or deduction. Note that we are not responsible for issues arising from incorrect parameters provided by the customer.
Q5: Why choose your products over others?
A: With over 25 years of professional experience, advanced technology, first-class equipment, and competitive pricing, we ensure high-quality standards.
Q6: Do you provide custom specifications?
A: Yes, we can produce special sizes and finishes to meet specific customer requirements.