YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C,T/T |
| Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Product Name | Stainless Steel Seamless Tube |
| Standard | ASTM A789, ASME SA789 |
| Material | UNS S32750, SAF 2507, 1.4410 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. |
| Thickness | BWG10-25 |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End |
| High Light | ASME SA789 UNS S32750 Super Duplex Steel Seamless Tube, Duplex 2507 Heat Exchanger Tube |
| Brand Name | YUHONG |
| Model Number | ASME SA789 UNS 32750 Super Duplex Steel Seamless Tube |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Product Name | Stainless Steel Seamless Tube |
| Standard | ASTM A789, ASME SA789 | Material | UNS S32750, SAF 2507, 1.4410 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. | Thickness | BWG10-25 |
| Length | Single Random, Double Random & Cut Length | End | Plain End, Beveled End |
| High Light | ASME SA789 UNS S32750 Super Duplex Steel Seamless Tube, Duplex 2507 Heat Exchanger Tube | Brand Name | YUHONG |
| Model Number | ASME SA789 UNS 32750 Super Duplex Steel Seamless Tube | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | ASME SA789 super duplex steel tube ，SAF 2507 heat exchanger tube ，1.4410 duplex stainless steel tube | ||
ASTM A789 UNS S32750 / Super Duplex 2507 Super Duplex Stainless Steel Heat Exchanger Tube
ASME SA789 UNS S32750 / SAF 2507 super duplex stainless steel seamless tubing. A seamless tube that forms the boundary between two fluid streams in a shell‑and‑tube heat exchanger. The material – super duplex UNS S32750 – is selected when the shellside or tubeside fluid contains high levels of chlorides (e.g., seawater, brine, produced water) or hydrogen sulfide (sour service). Its high strength allows it to withstand thermal cycling and pressure pulsations, while its corrosion resistance prevents the tube wall from thinning, pitting, or cracking – the three leading causes of heat exchanger tube failure. Typical applications: offshore platform coolers, desalination brine heaters, and FGD reheater tubes.
ASME SA789 UNS S32750 Super Duplex Stainless Steel Heat Exchanger Tube Equivalent Grade
|
Duplex |
UNS Designation |
Werkstoff NR. |
Specifications |
AFNOR |
Grade |
1.4410 |
|---|---|---|---|---|---|---|
|
SAF2507 |
S32750 |
1.4410 |
A/SA789, A/SA790 |
Z3 CN 25.06 Az |
F53 |
X2 Cr Ni MoN 25.7.4 |
ASME SA789 UNS S32750 Super Duplex Stainless Steel Heat Exchanger Tube Chemical Composition
| C% | Si% | Mn% | P% | S% | Cr% | Ni% | Mo% | N% | Cu% |
| 0.03 max | 0.8 max | 1.2 max | 0.035 max | 0.02 max | 24-26 | 6-8 | 3-5 | 0.24-0.32 | 0.5 max |
ASME SA789 UNS S32750 Super Duplex Stainless Steel Heat Exchanger Tube Mechanical Properties
| Tensile Strength, Mpa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 795 min | 550 min | 15 min | 310 max |
Comparison with Alternatives for Heat Exchanger Tubes
| Grade | PREN | Max Temp in Chlorides | Relative Cost | Best Use Case |
| 316L | 24 | 40℃ | 1x | Clean water, low chlorides |
| 2205 (Duplex) | 35 | 80℃ | 2x | Moderate chlorides, some H₂S |
| SAF 2507 (S32750) | 42 | 150℃ | 4-5x | Seawater, high chlorides, sour service |
| Alloy 625 (Ni-base) | 50+ | 200℃ | 10x+ | Extreme: HCl, HF, very high temp |
Application
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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