Duplex Stainless Steel Pipe, Astm A790 , Astm A928 , S31803 , S32750, S32760, S31254 , 254mo, 253ma

We have thousands tons stock of stainless steel sheet and coil with various size and grade,mainly include austenitic stainless steel, martens stainless steel (including precipitation hardened stainless steel sheet & coil), ferritic stainless steel, and duplex stainless steel.

Characteristics of Stainless Steel Sheet and Plate:
High corrosion resistance
High strength
High toughness and impact resistance
Temperature resistance
High workability, including machining, stamping, fabricating and welding
Smooth surface finish that can be easily clean

We produce ASTM/ASME Grade 304, Grade 304L,304h, 316, 316L, 316H, 316TI, 321, 321H, 309S, 309H, 310S, 310H, 410S, 2205, 904L, 2507, 254, gh3030, 625, 253MA, S30815, 317L, Type 317, 316lN, 8020, 800, 800H, C276, S32304 and others special requirement stainless steel grade.

Stock Thickness: 0.1-200.0mm
Production thickness: 0.5.0-200mm
Width: 600-3900mm
Length: 1000-12000mm
Grade:
200 series: 201,202
300 series: 301,304,304L,304H,309,309S,310S,316L,316Ti,321,321H,330
400 series: 409,409l,410,420J1,420J2,430,436,439,440A/B/C
Duplex: 329,2205,2507,904L,2304
Surface: No.1,1D,2D,2B,NO.4/4K/hairline,satin,6k,BA,mirror/8K

1.2 This specification covers grades of ferritic/austenitic steel as indicated in Table 1. The number of the correct alloy and necessities for warmth treatment shall be at the discretion of the purchaser, depending on the service situations to be encountered. 1.1 This specification covers electrical-fusion-welded steel pipe appropriate for corrosive service. Often a light-weight gauge of 2507 material can be used to realize the same design energy of a thicker nickel alloy.

Alloy 2507 is very proof against carbide-related intergranular corrosion. Due to the ferritic portion of the duplex structure of the alloy it is extremely resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice assault are improved.

• In some circumstances, the energy of duplex steel can be up to double that of probably the most commonly used grades of stainless steel.
• Unlike related steels, duplex additionally displays an improved resistance to localised corrosion, particularly pitting, crevice corrosion and stress corrosion cracking.
• Alloy 2507 has 25% chromium, 4% molybdenum, and seven% nickel.
• Due to its ferritic qualities, duplex steel additionally shows excellent resistance to stress corrosion cracking when in comparison with commonplace austenitics.

In some cases, the power of duplex steel can be as much as double that of probably the most commonly used grades of chrome steel. Duplex 2507 is an excellent duplex stainless-steel designed for functions which demand exceptional power and corrosion resistance. Alloy 2507 has 25% chromium, 4% molybdenum, and seven% nickel.

Unlike comparable steels, duplex also shows an improved resistance to localised corrosion, notably pitting, crevice corrosion and stress corrosion cracking. Due to its ferritic qualities, duplex steel additionally shows very good resistance to emphasize corrosion cracking when in comparison with commonplace austenitics.

 

This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex construction supplies 2507 with exceptional resistance to chloride stress corrosion cracking. This is a Duplex alloy stainless-steel designed to function excessive strength, resistance to pitting, stress corrosion cracking, erosion corrosion and corrosion fatigue, crevice corrosion and strong weldability. Duplex & Super Duplex Welded Stainless Steel Pipe appeared within the marketplace due to the have to combat the shortcomings of austenitic and ferritic steels. It was found that a mixture of these two supplies resulted in higher strength, lowered weight, good weldability and increased resistance to stress corrosion cracking. Another good thing about duplex steels is that as a result of it has a lower nickel and molybdenum content than other austenitic stainless steels, it could possibly prove to be a more economical choice as a result of its decrease alloy content material.

grade 316 stainless-steel

2507 Duplex is highly proof against uniform corrosion by organic acids similar to formic and acetic acid. It is alsohighly resistant to inorganic acids, particularly in the event that they include chlorides.

forged round bar

The resulting financial savings in weight can dramatically reduce the general price of fabrication. Usage of Duplex 2507 should be limited to purposes under 600° F (316° C).