ASTM Ss Stainless Steel Pipe 201 304 304L 316 316L 321 Stainless Steel Welded Pipe/Tube

GENERAL PROPERTIES

Duplex 2507 (UNS S32750) is a super duplex stainless steel with a composition of 25% chromium, 4% molybdenum, and 7% nickel. Designed for high-demand applications requiring exceptional strength and corrosion resistance, it is ideal for chemical processes, petrochemical, and seawater equipment. This steel exhibits outstanding resistance to chloride stress corrosion cracking, high thermal conductivity, and a low thermal expansion coefficient. Its rich chromium, molybdenum, and nickel content provides excellent resistance to pitting, crevices, 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

CORROSION RESISTANCE

GENERAL CORROSION

• The high chromium and molybdenum content of 2507 renders it highly resistant to uniform corrosion by organic acids like formic and acetic acid.

• It offers excellent resistance to inorganic acids, particularly those with chlorides.

• It can be effectively used in dilute hydrochloric acid.

• Pitting is not a concern in areas below the borderline in this figure, though crevices should be avoided.

INTERGRANULAR CORROSION

• Its low carbon content significantly reduces the risk of carbide precipitation at grain boundaries during heat treatment.

• The alloy is highly resistant to carbide-related intergranular corrosion.

STRESS CORROSION CRACKING

• The duplex structure of our 2507 Stainless Steel Plate offers unparalleled resistance to chloride stress corrosion cracking (SCC), ensuring durability and reliability in even the harshest marine environments.

• Elevate your marine applications with 2507 Stainless Steel, a material that surpasses 2205 in both corrosion resistance and strength, providing unmatched performance.

• The 2507 Stainless Steel Plate is an ideal choice for offshore oil and gas industries. Its exceptional resistance to high brine levels, whether naturally occurring or injected, enhances recovery and ensures longevity.

Pitting Corrosion

• Utilize varied testing methods to accurately determine the pitting resistance of our 2507 stainless steel in chloride-containing solutions, ensuring optimal performance.

Crevice Corrosion

• Experience superior protection with our highly resistant 2507 stainless steel, engineered to withstand crevice corrosion effectively.

Hot Forming

For hot working, 2507 should be processed between 1875°F and 2250°F. Follow this with a solution anneal at a minimum of 1925°F, completed by a rapid air or water quench to ensure peak performance.

Cold Forming

2507 Stainless Steel is designed to be compatible with most standard forming processes for stainless steel. Given its higher yield strength and lower ductility compared to austenitic steels, fabricators may require increased forming forces, larger bending radii, and allowances for springback. While procedures like deep drawing and stretch forming are more challenging, a solution anneal and quench are recommended for deformations exceeding 10%.

Heat Treatment

Post hot or cold forming, 2507 should be solution annealed and quenched at a minimum of 1925°F, followed by a rapid air or water quench. For optimal corrosion resistance, heat-treated products should undergo pickling and rinsing.

Welding

2507 Stainless Steel boasts excellent weldability and can be joined to itself or other materials using SMAW, GTAW, PAW, FCW, or SAW methods. Utilize 2507/P100 filler metal for achieving the desired duplex weld structure.
2507 Stainless Steel typically does not require special measures, except to prevent condensation on cold metal surfaces.

2507 Grade Stainless Steel Sheets in a Variety of Finishes

Discover our range of stainless steel sheets, available in exquisite finishes: brushed, 2B smooth, or 8K mirror finish, each designed to meet the highest standards of aesthetic and functionality.

Each stainless steel sheet we supply is protected with a film on the finished side, which can be easily peeled off post-fabrication or installation, ensuring a pristine, mark-free surface. The back side remains unfinished.

2205 Grade Stainless Steel Sheet is a versatile and widely used option, known for its excellent weldability, formability, and corrosion resistance.

We have stable and reliable business channels with many famous manufacturers of steel product, such as Baosteel, Baoxin, TISCO, ZPSS/QPSS, JISCO, Shougang Group,Tsing Tuo Group,Angang Steel,SKS,etc,thus, we can meet the different requirements from our customers, especially for some urgent orders and small orders. 

Our company has many years of foreign trade experience and exports to more than 140 countries. With our professional knowledge and comprehensive services, we have won the high quality evaluation of global customers.
 

1. We have high-quality products, which are directly supplied by the factory to ensure adequate supply.
2. We provide professional services to solve your problems online 24 hours a day.
3. With years of supply experience, we strive to bring value to every customer.