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Super Duplex Stainless Steel Pipe UNS S32750 2507 Seamless
| Place of Origin | China |
|---|---|
| Brand Name | DELTA |
| Certification | ISO |
| Model Number | 304 316L 321 310S 309S 347 2205 2507 904L.etc |
| Minimum Order Quantity | 500 kgs |
| Price | 5000-6200 USD/Ton |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | T/T, Western Union, L/C |
| Supply Ability | 10 Ton per week |
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xProduct Details
| Products | Stainless Steel Seamless Pipe | Grade | 304 316L 321 2205 2507 310S 347 904L.etc |
|---|---|---|---|
| Standard | ASTM GB EN | Length | 6m Or Custom Cutting Any Length As Request |
| Diameter | DN10 - DN400 | Wall Thickness | SCH10 - XXS Or Unstandard Size |
| Type | Seamless Pipe | Service | Cutting, Polishing |
| Highlight | Super duplex stainless steel pipe,duplex stainless steel pipe UNS S32750,Seamless duplex 2507 pipe |
||
Product Description
UNS S32750 Super Duplex Stainless Steel Pipe Tube / 2507 Duplex Seamless Steel Pipe SS Pipe
SUPER DUPLEX 2507 STAINLESS STEEL PIPE or super duplex 2507 pipe is a ferritic-austenitic (biphasic) stainless steel that combines the most beneficial properties of many ferritic and austenitic steels because of their high levels of chromium and molybdenum The ability to resist pitting corrosion, crevice corrosion and uniform corrosion.The biphasic microstructure ensures that the steel has a high resistance to stress corrosion cracking, and the mechanical strength is also high.
Typical 2507 Duplex Stainless Steel Microstructure
2507 stainless steel used in the oil and gas industry; offshore stone breaking oil platform (heat exchanger tubes, water treatment and water supply systems, fire protection systems, water systems, water stabilization systems; petrochemical equipment; desalination (desalination) equipment High-pressure pipe, sea water pipe); both high strength and high corrosion resistance of the mechanical and structural components; combustion (waste) gas purification equipment. Main components: 25Cr-7Ni-4Mo-0.27N
The compound structure of 2507 has a strong resistance to stress corrosion cracking. Due to its high alloy content, 2507 has better corrosion resistance and strength than 2205.
Cracks in the construction and other aspects is almost inevitable, which makes the stainless steel in the chloride environment more susceptible to corrosion.
2507 has a strong ability to crack corrosion resistance. 2507 containing 2000ppm chloride ion in the sulfuric acid corrosion curve 0.1 mm / year; Corrosion curve in hydrochloric acid 0.1 mm / year.
Mechanical properties:
2507 has a high compressive strength, impact strength and low coefficient of thermal expansion and high thermal conductivity. These features apply to many structural parts and mechanical parts. 2507 impact strength is high, not long-term placed Higher than 570 ° F in the temperature environment, this may weaken its toughness. Tensile strength: σb ≥ 730Mpa; Elongation: δ ≥ 20%
Supporting welding consumables: ER2594 welding wire, E2594 electrode
Applications: pulp and paper industry, desalination, flue gas purification, heat exchangers, chemical tanker piping systems, seawater systems.
SUPER DUPLEX 2507 STAINLESS STEEL PIPE CHEMICAL COMPOSITION:
|
STEEL Grade
|
C≤
|
Mn≤
|
Si≤
|
S≤
|
P≤
|
Cr
|
Ni
|
Mo
|
Cu≤
|
N
|
|
S32750(2507)
00Cr25Ni7Mo4N
|
0.03
|
1.2
|
0.8
|
0.02
|
0.035
|
24/
26
|
6.0/
8.0
|
3.0/
5.0
|
0.5
|
0.24/
0.32
|
|
S31803(2205)00Cr22Ni5Mo3N
|
0.03
|
2.0
|
1.0
|
0.02
|
0.03
|
21/
23
|
4.5/
6.5
|
2.5/
3.5
|
0.08/
0.20
|
|
|
S31500(3RE60)
00Cr18Ni5Mo3Si2
|
0.03
|
1.2/
2.0
|
1.4/
2.0
|
0.03
|
0.03
|
18/
19
|
4.25
5.25
|
2.5/
3.0
|
0.05/
0.10
|
After proper solution treatment of 2507 stainless steel, the microstructure of the steel is more ideal than the dual phase structure of alpha / gamma ratio of 50/50. When the solution temperature is above 1050 DEG C, the ferrite phase number increases with the increase of temperature, but because of the high nitrogen content, there is no significant change in the phase ratio below 1300. This steel without aging at different temperature (or heat effect), in the alpha + gamma matrix will be formed and delta gamma 2, x, R, alpha ` intermetallic phases and Cr2N oxide precipitates, because the carbon content of the steel is low (usually 0.01%-0.02%), so in general no carbide steel.
SUPER DUPLEX 2507 STAINLESS STEEL PIPE ( SUPER DUPLEX 2507 PIPE ) MECHANICAL PROPERTY:
|
STEEL GRADE
|
Heat treatment temperature
℃
|
σb (Mpa)
≥
|
σs(Mpa)
≥
|
δ%
≥
|
Hardness≤
|
|
|
Brinell
|
Rockwell
|
|||||
|
S32750(2507)
00Cr25Ni7Mo4N
|
1025-1125
Water quenching
|
800
|
550
|
15
|
310
|
32
|
|
S31803(2205)
00Cr22Ni5Mo3N
|
1020-1100
Water quenching
|
620
|
450
|
25
|
290
|
30.5
|
|
S31500(3RE60)
00Cr18Ni5Mo3Si2
|
980-1040
Water quenching
|
630
|
440
|
30
|
290
|
30.5
|
First, super duplex 2507 stainless steel pipe at room temperature Mechanical properties:
Steel varieties: wall thickness ≤ 20mm; δb / MPa: 800-1000, δ0.2 / MPa: ≥550, δ5 /%: ≥25, hardness (HV): 290
Second, super duplex 2507 stainless steel plate at room temperature – 200 ℃ mechanical properties:
Steel varieties temperature / ℃ δb / MPa
Room temperature ≥ 530
Plate 100 ≥ 450
200 ≥ 400
Third, the mechanical properties of super duplex 2507 stainless steel pipe large diameter seamless
Outer diameter × wall thickness δb / MPa δ0.2 / MPa δ5 /% Hardness (HV)
273.0 mm x 4.19 mm 894 644 40 284
323.9 mm x 4.57 mm 858 662 45 270
406.4mm x 4.74mm 854 657 41 272
Super Duplex 2507 ( UNS S32750 ) Stainless Steel pipe is a higher corrosion resistance and better mechanical properties than duplex stainless steel 2205 (S31803). Often used in offshore oil platforms ( heat exchanger tubes, water treatment and water supply systems, fire protection systems, water systems, water stabilization systems ), desalination ( desalination ) equipment (Ro equipment in the high-pressure pipe, sea water pipes) and other special chemical environment Equipment. Name S32750, 2507, F53, GB 00Cr25Ni7Mo4N.
Applications:
oil and gas industry equipment; offshore platforms, heat exchangers, underwater equipment, fire fighting equipment; chemical processing industry, utensils and piping industry; desalination plants, submarine pipelines; mechanical parts (high strength, corrosion resistant parts), Energy industry FGD system, industrial scrubbing system, absorption tower and so on.
SUPER DUPLEX 2507 STAINLESS STEEL PIPE SEAMLESS AND WELDED PICTURES
SEAMLESS
SUPER DUPLEX 2507 STAINLESS STEEL PIPE SEAMLESS SUPPLIERS,MANUFACTURERS ,CONTACT KCM SPECIAL STEEL TO GET AMAZING PRICE AND HIGH QUALITY SUPER DUPLEX 2507 STAINLESS STEEL PIPE.
welded
SUPER DUPLEX 2507 STAINLESS STEEL PIPE WELDED SUPPLIERS,MANUFACTURERS ,CONTACT KCM SPECIAL STEEL TO GET AMAZING PRICE AND HIGH QUALITY SUPER DUPLEX 2507 STAINLESS STEEL PIPE.
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