- : 0086-21-61182423
- : 0086-21-61182425
- : [email protected]
- : Room 301,Unit 6,lane 2500,xiupu Road,Kangqiao Industrial Area,Pudong New District,Shanghai
- API 5CT N80 casing and tubing pipe
- API 5CT K55 casing and tubing pipe
- API 5CT J55 casing and tubing pipe
- EN10028-2 16Mo3 Boiler and Pressure Vessel steel Plate Notch impact energy
- EN10028-2 P265GH Pressure vessels steel equivalents
- EN 10210 S355J2H low alloy carbon structural steel
- EN 10210 S355J0H steel hollow materials
- GB/T 18248 34CrMo4
- GB/T 18248 35CrMo alloy steel
- 30CrMo steel Heat treatment, 30CrMo steel tube/pipe
Duplex stainless steel 2507(S31750) price
katalor Stainless inventory now includes Duplex stainless steel 2507, which is a duplex stainless steel with 4% molybdenum,25% chromium, and 7% nickel. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity and a low coefficient of thermal expansion. Duplex 2507 is designed for applications which require exceptional strength and corrosion resistance; examples include applications in chemical processing, petrochemical, and seawater equipment.
2507(S31750) chemical composition
|
Element |
Content (%) |
|
Chromium, Cr |
24 – 26 |
|
Nickel, Ni |
6 – 8 |
|
Molybdenum, Mo |
3 – 5 |
|
Manganese, Mn |
1.20 max |
|
Silicon, Si |
0.80 max |
|
Copper, Cu |
0.50 max |
|
Nitrogen, N |
0.24 – 0.32 |
|
Phosphorous, P |
0.035 max |
|
Carbon, C |
0.030 max |
|
Sulfur, S |
0.020 max |
|
Iron, Fe |
Balance |
2507(S31750) Physical properties
|
0.2% Proof Stress (N/mm2 ) [ksi] minimum |
550[79.8] |
|
Ultimate Tensile Strength (N/mm2) [ksi] minimum |
800 [116] |
|
Elongation (%) minimum |
25 |
|
Hardness (HBN) |
270 max |
|
Reduction of Cross Section Area (%) |
45 |
|
Charpy V-notch Impact at ambient Temp (J) [ft.lb] |
80min [59min] |
|
Charpy V-notch Impact at -46°C (J) [ft.lb] |
45av, 35min [33av, 25.8min] |
|
Density (Kg.m-1) |
7810 |
|
Magnetic Permeability |
33 |
|
Young’s Modulus (N/mm2) |
199 x 103 |
|
Specific Heat, 20°C (J.Kg-1.°K-1) |
475 |
|
Fracture Toughness, Kq (MPa.m) |
475 |
|
Specific Electrical Resistance, 20°C (µO.m) |
0.80 |
|
Thermal conductivity, 20°C (W.m-1.°K-1) |
14.2 |
|
Mean coefficient of thermal expansion, 20-100°C (°K-1) |
11.1 x 10-6 |
2507(S31750) Application
1-Oil and gas industry equipment
2-Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems
3-Chemical process industries, heat exchangers, vessels, and piping
4-Desalination plants, high pressure RO-plant and seawater piping
5-Mechanical and structural components, high strength, corrosion-resistant parts
6-Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping
2507(S31750) Welding
2507 possesses good weldability and can be joined to itself or other materials by shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW), plasma arc welding (PAW), flux cored wire (FCW), or submerged arc welding (SAW). 2507/P100 filler metal is suggested when welding 2507 because it will produce the appropriate duplex weld structure. Preheating of 2507 is not necessary except to prevent condensation on cold metal. The interpass weld temperature should not exceed 300°F or the weld integrity can be adversely affected. The root should be shielded with argon or 90% N2/10% H2 purging gas for maximum corrosion resistance. The latter provides better corrosion resistance.
Phone: 0086-18317160019
TEL: 0086-21-61182423
Fax: 0086-21-61182425
E-mail: [email protected]
Skype: shanghai.katalor
Address : Room 301,Unit 6,lane 2500,xiupu Road,Kangqiao Industrial Area,Pudong New District,Shanghai