DUPLEX 2507 STAINLESS STEEL
Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25%
chromium, 4% molybdenum, and 7% nickel designed for demanding
applications which require exceptional strength and corrosion
resistance, such as chemical process, petrochemical, and seawater
equipment. The steel has excellent resistance to chloride stress
corrosion cracking, high thermal conductivity, and a low
coefficient of thermal expansion. The high chromium, molybdenum,
and nickel levels provide excellent resistance to pitting, crevice,
and general corrosion.
Applications
- Oil and gas industry equipment
- Offshore platforms, heat exchangers, process and service water
systems, fire-fighting systems, injection and ballast water systems
- Chemical process industries, heat exchangers, vessels, and piping
- Desalination plants, high pressure RO-plant and seawater piping
- Mechanical and structural components, high strength,
corrosion-resistant parts
- Power industry FGD systems, utility and industrial scrubber
systems, absorber towers, ducting, and piping
Standards
ASTM/ASME ………. A240 – UNS S32750
EURONORM………… 1.4410 – X2 Cr Ni MoN 25.7.4
AFNOR……………….. Z3 CN 25.06 Az
Chemical Properties
Typical values (Weight %)
| C | Cr | Ni | Mo | N | Others |
|---|
| 0.020 | 25 | 7 | 4.0 | 0.27 | S=0.001 |
| C | Cr | Ni | Mo | N | Others |
|---|
Mechanical Properties
| Ultimate Tensile Strength, ksi | 116 min. |
|---|
| 0.2% Offset Yield Strength 0.2%, ksi | 80 min. |
| 0.1% Offset Yield Strength 0.2%, ksi | 91 min. |
| Elongation in 2 inches, % | 15 min. |
| Hardness Rockwell C | 32 max. |
| Impact Energy, ft.-lbs. | 74 min. |
Physical Properties
| Density | lb/in^3 | 0.28 |
|---|
| Modulus of Elasticity | psi x 10^6 | 29 |
Coefficient of Thermal Expansion
68-212°F/°F | x10^-6/°F | 7.2 |
| Thermal Conductivity | Btu/h ft °F | 8.7 |
| Heat Capacity | Btu/lb/°F | 0.12 |
| Electrical Resistivity | W-in x 10^-6 | 31.5 |
Product Pictures:
Company Introduction:
Packaging and Delivery:
FAQ:
Q: Are you trading company or manufacturer?
A: We are a professional steel pipes materials manufacturer.
Q: How long is your delivery time?
A: Generally it takes 7-14 days if the goods are in stock or 30-60
days if there is no stock, this mainly depends on quantity.
Q: Do you provide free sampleas?
A: Yes, we could offer the sample for free charge but need pay the cost of
freight.
Q: What is your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T
in advance ,balance before shippment.
If you have another question, pls feel free to contact us.
