2507

Stainless Steel Square Bar-2507

Stainless Steel Square Bar-2507

According to the production process, stainless steel rods can be divided into three types: hot rolling, forging and cold drawing. The specification of hot rolled stainless steel round bar is 5.5-250 mm. Among them: 5.5-25mm small stainless steel round bars are mostly supplied in bundles of straight strips, which are often used as steel bars, bolts and various mechanical parts; stainless steel round bars larger than 25mm are mainly used for the manufacture of mechanical parts or as seamless steel pipe billets .

2507 duplex stainless steel contains 25% chromium, 4% molybdenum and 7% nickel. It has strong strength and corrosion resistance, and is mainly used in chemical processing, petrochemical and subsea equipment. At the same time, it has excellent resistance to chloride corrosion, high thermal conductivity and low thermal expansion coefficient. In addition, higher grids,
The molybdenum and nickel contents also provide good resistance to pitting, crevice and uniform corrosion.
The impact strength of 2507 duplex stainless steel is also very high. 2507 stainless steel should not be used in a temperature environment higher than 570°F for a long time, which will reduce the toughness of stainless steel.
2507 is a ferritic-austenitic (duplex) stainless steel that combines the most beneficial properties of many ferritic and austenitic steels. Due to the high content of chromium and molybdenum, it has extremely Good resistance to pitting corrosion, crevice corrosion and uniform corrosion. The dual-phase microstructure ensures that the steel has high resistance to stress corrosion cracking and high mechanical strength.
2507 stainless steel is used in the oil and gas industry; offshore Shipotian oil platforms (heat exchanger tubes, water treatment and water supply systems, fire protection systems, water spray systems, water stabilization systems; petrochemical equipment; desalination (desalination) equipment (and equipment in high-pressure pipes, seawater pipes); mechanical and structural components that require both high strength and high corrosion resistance; combustion (exhaust) gas purification equipment. Main components: 25Cr-7Ni-4Mo-0.27N

Equivalent Material of Stainless Steel  square bar

Grade UNS No. Old British Euronorm China GB Japanese JIS
BS EN No. Name
2507 S32750  -  -  1.441 25Cr-7Ni-4Mo-0.27N 022Cr25Ni7Mo4N SUS 2507

Standard Specification Of 2507 square bar

Specifications ASTM A276
Diameter 3、5、6、7、8、9、10、12、15、18、20、25、30、35、40、50、100、200etc
Length 2000mm, 2500mm, 3000mm,3500mm, 4000mm 5000mm 6000mm 10000mm 12000mm etc
Surface Black 、 bright、 pickling 、etc
Finish Hot rolled plate (HR), Cold rolled sheet (CR), 
Form Rod, Round, Channel Bar, Rings, Round Rod, Triangle, Hollow, Rectangle, T-Bar, Flat Bar, Precision Ground Bar, Blocks, Square, Threaded, Hex (A/F), Profiles, Half Round Bar, Ingot, Billet, I/H Bar, Forging etc.

Stainless steel composition content.

Grade C Mn Si P S Cr Mo Ni N
2507 Min. / / / / / 24 3 6 0.24
Max. 0.03 1.2 0.8 0.035 0.02 26 5 8 0.32
Grade Tensile Strength
(MPa) 
Yield Strength
0.2% Proof (MPa) 
Elongation
(% in 50mm)
Hardness
Rockwell B(HR B) Brinell(HB)
2507 795 550 15 29  -

2507 Characteristic machining technology

1D -- The surface has discontinuous granular shape, also known as fog surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2D - A slightly silvery white colour.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2B -- Silver white with better gloss and flatness than a 2D surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling.
Ba - Excellent surface gloss, high reflectivity, like a mirror surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenching and tempering rolling.
No.3 -- Good gloss, coarse grain surface.
Processing technology: polishing and tempering rolling for 2D or 2B with 100~120 abrasive materials (JIS R6002).
No.4 -- Good gloss, fine lines on the surface.
Processing process: polishing and tempering rolling for 2D or 2B with 150~180 abrasive materials (JIS R6002).
HL -- Silver grey with hair streaks.
Processing technology: 2D products or 2B products with appropriate granularity of abrasive materials for polishing the surface is a continuous abrasive grain.
MIRRO -- Specular.
Processing technology: 2D products or 2B products with appropriate granularity of the grinding material grinding and polishing to the mirror effect.

Stainless Steel square bar Price List

2507 Stainless Steel square bar Price List 2507 Stainless Steel square bar FOB Shanghai Per Unit (USD)
2507 stainless steel black square bar $1550.00-$2050.00
2507 stainless steel bright square bar $1850.00-$2350.00
2507  stainless steel pickling square bar $1550.00-$2050.00

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