Description
SUPER DUPLEX 2507 STAINLESS STEEL PIPE (SUPER DUPLEX 2507 PIPE) BRIEF INTRODUCTION
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
KCM SPECIAL STEEL CO.,LTD SUPER DUPLEX 2507 STAINLESS STEEL PIPE RELATED PRODUCTS
1. super duplex 2507 stainless steel pipe seamless
2. super duplex 2507 stainless steel pipe welded
3. super duplex 2507 stainless steel pipe fittings
4. super duplex 2507 stainless steel pipe flanges
5. super duplex 2507 stainless steel valves
SUPER DUPLEX 2507 PIPE CORROSION RESISTANCE
1. Usual Corrosive
The higher chromium and molybdenum content of SAF 2507 has a strong resistance to overall corrosion of organic acids such as formic acid, acetic acid, etc. The SAF2507 alloy has a strong resistance to inorganic acids, especially those containing chloride The corrosion resistance.
Compared to 904L, SAF2507 has a stronger corrosion resistance to diluted sulfuric acid ions. 904L is an austenitic alloy that is designed to withstand pure sulfuric acid corrosion.
316L grade can not be used in hydrochloric acid environment, it may be subject to local corrosion or corrosion.
SAF2507 can be used for dilution of hydrochloric acid environment, has a strong anti-stain and anti-fissure corrosion ability.
2. intergranular corrosion
The lower carbon content of the nSAF 2507 greatly reduces the risk of carbide precipitation in the intergranular phase during heat treatment, and therefore the alloy has a strong ability to resist intergranular corrosion associated with carbides.
3. Stress corrosion cracking
The compound structure of SAF 2507 has a strong resistance to stress corrosion cracking. Due to its high alloy content, SAF 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.
SAF 2507 has a strong ability to crack corrosion resistance. SAF 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:
SAF 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. SAF 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（SAF2507）
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（SAF2205）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
|
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（SAF2507）
00Cr25Ni7Mo4N
|
1025-1125
Water quenching
|
800
|
550
|
15
|
310
|
32
|
|
S31803（SAF2205）
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
Applications:
SUPER DUPLEX 2507 STAINLESS STEEL PIPE SEAMLESS AND WELDED AVAILABLE SIZES IN STOCK OR ARRANGE PRODUCTION:
| INCH | inch sizc(ID) | OD | STANDARD WALL THICKNESS | ||||||||||||||
| SCH 5s | SCH 10S | SCH 10 | SCH 20 | SCH 30 | SCH 40 | SCH 60 | SCH 80 | SCH 100 | SCH 120 | SCH 140 | SCH 160 | STD | XS | XXS | |||
| 1/8 | DN6 | 10.3 | – | 1.24 | – | – | – | 1.73 | – | 2.42 | – | – | – | – | 1.73 | 2.41 | – |
| 1/4 | DN8 | 13.7 | – | 1.65 | – | – | – | 2.24 | – | 3.02 | – | – | – | – | 2.24 | 3.02 | – |
| 3/8 | DN10 | 17.1 | – | 1.65 | – | – | – | 2.31 | – | 3.2 | – | – | – | – | 2.31 | 3.2 | – |
| 1/2 | DN15 | 21.3 | 1.65 | 2.11 | – | – | – | 2.77 | – | 3.73 | – | – | – | 4.78 | 2.77 | 3.73 | 7.47 |
| 3/4 | DN20 | 26.7 | 1.65 | 2.11 | – | – | – | 2.87 | – | 3.91 | – | – | – | 5.56 | 2.87 | 3.91 | 7.82 |
| 1 | DN25 | 33.4 | 1.65 | 2.77 | – | – | – | 3.38 | – | 4.55 | – | – | – | 6.35 | 3.38 | 4.55 | 9.09 |
| 1.1/4 | DN32 | 42.2 | 1.65 | 2.77 | – | – | – | 3.56 | – | 4.85 | – | – | – | 6.35 | 3.58 | 4.85 | 9.7 |
| 1.1/2 | DN40 | 48.3 | 1.65 | 2.77 | – | – | – | 3.68 | – | 5.05 | – | – | – | 7.14 | 3.68 | 5.08 | 10.15 |
| 2 | DN50 | 60.3 | 1.65 | 2.77 | – | – | – | 3.91 | – | 5.54 | – | – | – | 8.74 | 3.91 | 5.54 | 11.07 |
| 2.1/2 | DN65 | 73 | 2.11 | 3.05 | – | – | – | 5.16 | – | 7.01 | – | – | – | 9.53 | 5.16 | 7.01 | 14.02 |
| 3 | DN80 | 88.9 | 2.11 | 3.05 | – | , – | – | 5.49 | – | 7.62 | – | – | – | 11.13 | 5.49 | 7.52 | 15.24 |
| 3.1/2 | DN90 | 101.6 | 2.11 | 3.05 | – | – | – | 5.74 | – | 8.08 | – | – | – | – | 5.74 | 8.08 | – |
| 4 | 114.3 | 2.11 | 3.05 | – | – | – | 6.02 | – | 8.58 | – | 11.13 | – | 13.49 | 6.02 | 8.56 | 17.12 | |
| 5 | DN125 | 141.3 | 2.77 | 3.4 | – | – | – | 6.55 | – | 9.53 | – | 12.7 | – | 15.88 | 6.55 | 9.53 | 18.05 |
| 6 | DN150 | 168.3 | 2.77 | 3.4 | – | – | – | 7.11 | – | 10.97 | – | 14.27 | – | 18.26 | 7.11 | 10.97 | 21.95 |
| 8 | DN200 | 219.1 | 2.77 | 3.76 | – | 6.35 | 7.04 | 8.18 | 10.31 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 8.18 | 12.7 | 22.23 |
| 10 | DN250 | 273.1 | 3.4 | 4.19 | – | 6.35 | 7.8 | 9.27 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 9.27 | 12.7 | 25.4 |
| 12 | DN300 | 323.9 | 3.96 | 4.57 | – | 6.35 | 8.38 | 10.31 | 14.27 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 9.35 | 12.7 | 25.4 |
| 14 | DN350 | 355.5 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 11.13 | 15.09 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | 9.53 | 12.7 | – |
| 16 | DN400 | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 12.7 | 16.66 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | 9.53 | 12.7 | – |
| 18 | DN450 | 457 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 14.27 | 19.05 | 23.83 | 29.36 | 34.93 | 39.67 | 45.24 | 9.53 | 12.7 | – |
| 20 | DN500 | 508 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | 15.09 | 20.62 | 26.19 | 32.54 | 38.1 | 44.45 | , 50.01 | 9.53 | 12.7 | – |
| 22 | DN550 | 559 | 4.78 | 5.54 | 6.35 | 9.53 | 12.7 | – | 22.23 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | 9.53 | 12.7 | – |
| 24 | DN600 | 610 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 17.48 | 24.61 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | 9.53 | 12.7 | – |
| 26 | DN650 | 660 | – | – | 7.92 | 12.7 | – | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 28 | DN700 | 711 | – | – | 7.92 | 12.7 | 15.88 | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 30 | DN750 | 762 | 6.35 | 7.92 | 7.92 | 12.7 | 15.88 | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 32 | DN800 | 813 | – | – | 7.92 | 12.7 | 15.88 | 17.48 | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 34 | DN850 | 864 | – | – | 7.92 | 12.7 | 15.88 | 17.48 | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 36 | DN900 | 914 | – | – | 7.92 | 12.7 | 15.88 | 19.05 | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 38 | DN950 | 965 | – | – | – | – | – | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 40 | DN1000 | 1015 | – | – | – | – | – | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 42 | DN1050 | 1067 | – | – | – | – | – | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 44 | DN1100 | 1118 | – | – | – | – | – | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 46 | DN1150 | 1188 | – | – | – | – | – | – | – | – | – | – | – | – | 9.53 | 12.7 | – |
| 48 | DN1200 | 1219 | – | – | – | – | – | – | – | – | – | – | – | – | |||
SUPER DUPLEX 2507 STAINLESS STEEL PIPE SEAMLESS AND WELDED PICTURES
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.
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.
Super duplex 2507 pipes are a type of duplex stainless steel pipe that has recently gained popularity in several industries.
These pipes are made from an alloy that contains both austenitic and ferritic stainless steels, giving them exceptional strength, resistance to corrosion, and high durability.
Super duplex 2507 pipes are particularly well-suited for use in harsh and corrosive environments, making them a popular choice for offshore drilling, petrochemical, and chemical processing applications.
Super duplex 2507 pipes contain approximately 25% chromium, 7% nickel, and 4% molybdenum. This combination of metals produces a unique microstructure that provides outstanding corrosion resistance.
The addition of molybdenum increases the pipe’s strength and resistance to pitting and crevice corrosion, while nickel enhances the pipe’s ductility and toughness. The high levels of chromium provide excellent resistance to oxidizing agents and corrosion caused by chlorides, making super duplex 2507 pipes an attractive option for use in saltwater and acidic environments.
One of the main advantages of super duplex 2507 pipes is their exceptional strength.
These pipes are designed to withstand high levels of pressure and stress, making them ideal for use in offshore drilling and chemical processing applications. Additionally, super duplex 2507 pipes have a high level of resistance to fatigue, making them suitable for use in applications that require repetitive cycling or high levels of stress.
Another key benefit of super duplex 2507 pipes is their outstanding resistance to corrosion.
The high levels of chromium, molybdenum, and nickel give these pipes excellent resistance to both general and localized corrosion, including pitting and crevice corrosion. This makes super duplex 2507 pipes an ideal choice for use in harsh and corrosive environments that can quickly deteriorate standard pipes.
Finally, super duplex 2507 pipes are highly versatile and can be easily customized to meet specific application needs.
They are available in a wide range of sizes, grades, and thicknesses, which can be configured according to the needs of a particular project. Additionally, super duplex 2507 pipes are compatible with various types of fittings and connectors, making them easy to integrate into existing systems.
In conclusion, super duplex 2507 pipes are an excellent choice for applications that require a high level of durability, corrosion resistance, and strength.
These pipes offer unique properties that other types of pipes cannot match, making them an attractive option for a wide range of industries.
As demand for reliable, durable and corrosion-resistant pipes continues to increase, super duplex 2507 pipes are likely to become even more popular in the years to come.
