YUHONG HOLDING GROUP CO., LTD
| Payment Terms | T/T,L/C |
| Supply Ability | 1000 ton per tons |
| Delivery Time | 7days |
| Packaging Details | Ply-woonden case |
| Shape | Round |
| Corrosion Resistance | High |
| Size | Customized |
| Cost-Effectiveness | High |
| Length | Customized |
| Materials | S32750 |
| Testing | UT, ET, HT, PMI |
| Ends | PE |
| Material | Duplex Stainless Steel |
| Standards | ASTM A789 , ASME SA789 |
| Brand Name | Yuhong |
| Model Number | ASTM A789 S32750 |
| Certification | ABS, BV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 1000 ton per tons |
| Delivery Time | 7days | Packaging Details | Ply-woonden case |
| Shape | Round | Corrosion Resistance | High |
| Size | Customized | Cost-Effectiveness | High |
| Length | Customized | Materials | S32750 |
| Testing | UT, ET, HT, PMI | Ends | PE |
| Material | Duplex Stainless Steel | Standards | ASTM A789 , ASME SA789 |
| Brand Name | Yuhong | Model Number | ASTM A789 S32750 |
| Certification | ABS, BV, CCS, LR | Place of Origin | China |
| High Light | ASTM A789 S32750 seamless tube ，Duplex stainless steel heat exchanger tube ，S32750 stainless steel seamless pipe | ||
The ASTM A789 S32750 Duplex Steel Seamless Tube is manufactured from S32750 duplex stainless steel, which combines both austenitic and ferritic properties to offer superior corrosion resistance, strength, and toughness. This tube is designed for heat exchanger systems, particularly in aggressive environments such as seawater, chemical processing, and petrochemical industries. Duplex steel ensures long-lasting performance in high-pressure, high-temperature applications, providing excellent resistance to stress corrosion cracking (SCC) and pitting corrosion.
| Element | Content (%) |
|---|---|
| C | ≤ 0.03 |
| Mn | 1.00 – 2.00 |
| Si | 0.80 – 1.20 |
| P | ≤ 0.035 |
| S | ≤ 0.015 |
| Cr | 24.0 – 26.0 |
| Ni | 6.0 – 8.0 |
| Mo | 3.0 – 5.0 |
| N | 0.24 – 0.32 |
| Fe | Balance |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 550 MPa |
| Yield Strength | ≥ 450 MPa |
| Elongation | ≥ 25% |
| Hardness | ≤ 250 HB |
| Impact Toughness | Excellent, even at low temp. |
| Maximum Operating Temp | 300°C (572°F) |
Superior Corrosion Resistance
Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC), especially in chloride-rich environments.
High Strength and Durability
Offers higher tensile strength than traditional austenitic stainless steels, with better performance in high-pressure systems.
Cost-Effective for Aggressive Environments
The combination of austenitic and ferritic phases makes this duplex steel a more affordable solution for harsh applications compared to fully austenitic alloys.
Outstanding Heat Transfer Efficiency
The tube design ensures optimal fluid flow and heat transfer, essential for efficient operation in heat exchanger applications.
Long Service Life
Superior resistance to corrosion fatigue and mechanical wear ensures long-term performance in extreme conditions.
This tube is used extensively in the following heat exchanger applications:
Seawater Heat Exchangers
Ideal for marine environments or applications exposed to seawater.
Petrochemical Industry
Used in cooling systems and heat exchangers where aggressive chemical processes are involved.
Power Plants
Effective for HRSG systems and economizers in both fossil fuel and nuclear plants.
Chemical Processing Units
Effective in high-pressure chemical reactors and heat exchanger systems dealing with corrosive materials
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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