Seamless Welded Stainless Steel Pipe Tube 201 2205 2507 310S
Seamless Welded Stainless Steel Pipe Tube 201 2205 2507 310S
GENERAL PROPERTIES
Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion. The high chromium, molybdenum, and nickel levels provide excellent resistance to pitting, crevice, and general corrosion.
Specification
|
Product Name
|
Seamless Welded Stainless Steel Pipe Tube 201 2205 2507 310S
|
|
Standard
|
ASTM AISI DIN, EN, GB, JIS
|
|
Steel Grade
|
200 Series: 201,202
300 Series: 301,304,304L,316,316L,316Ti,317L,321,309s,310s 400 Series: 409L,410,410s,420j1,420j2,430,444,441,436 Duplex Steel: 904L,2205,2507,2101,2520,2304 |
|
Outer Diameter
|
6-2500mm(as required)
|
|
Thickness
|
0.3mm-150mm (as required)
|
|
Length
|
2000mm/2500mm/3000mm/6000mm/12000mm(as required)
|
|
Technique
|
Seamless
|
|
Surface
|
No.1 2B BA 6K 8K Mirror No.4 HL
|
|
Tolerance
|
±1%
|
|
Price Terms
|
FOB,CFR,CIF
|
*Chemical Compositions
| C | Cr | Ni | Mo | N | Others |
|---|---|---|---|---|---|
| 0.020 | 25 | 7 | 4.0 | 0.27 | S=0.001 |
Mechanical Properties
| Ultimate Tensile Strength, ksi | 116 min. |
|---|---|
| 0.2% Offset Yield Strength 0.2%, ksi | 80 min. |
| 0.1% Offset Yield Strength 0.2%, ksi | 91 min. |
| Elongation in 2 inches, % | 15 min. |
| Hardness Rockwell C | 32 max. |
| Impact Energy, ft.-lbs. | 74 min. |
Physical Properties
| Density | lb/in^3 | 0.28 |
|---|---|---|
| Modulus of Elasticity | psi x 10^6 | 29 |
| Coefficient of Thermal Expansion 68-212°F/°F |
x10^-6/°F | 7.2 |
| Thermal Conductivity | Btu/h ft °F | 8.7 |
| Heat Capacity | Btu/lb/°F | 0.12 |
| Electrical Resistivity | W-in x 10^-6 | 31.5 |
CORROSION RESISTANCE
General Corrosion
- high chromium and molybdenum content of 2507 makes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid.
- provides excellent resistance to inorganic acids, especially those containing chlorides.
- can be used in dilute hydrochloric acid.
- Pitting need not be a risk in the zone below the borderline in this figure, but crevices must be avoided.
Intergranural Corrosion
- Low carbon content greatly lowers the risk of carbide precipitation at the grain boundaries during heat treatment.
- Is highly resistant to carbide-related intergranular corrosion.
Stress Corrosion Cracking
- Duplex structure of 2507 provides excellent resistance to chloride stress corrosion cracking (SCC).
- Superior to 2205 in corrosion resistance and strength.
- 2507 is especially useful in offshore oil and gas applications and in wells with either naturally high brine levels or where brine has been injected to enhance recovery.
Pitting Corrosion
- Different testing methods can be used to establish the pitting resistance of steels in chloride-containing solutions.
Crevice Corrosion
- Highly resistant to crevice corrosion.
Why Choose Us?
1. who are we?
We are based in Shandong, China, start from 2019,sell to Domestic Market and Abroad Market. There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;
3.what can you buy from us?
stainless steel plate,stainless steel coil,stainless steel sheet,stainless steel pipe and tube,sainless steel bar
4. why should you buy from us not from other suppliers?
Runs perennial exports of quality assured steel mills ,including Shanxi TISCO, Baosteel, Shanghai Krupp, Ningbo Baoxin, Guangzhou Lianzhong, Zhangjiagang Pohang, Qingdao Pohang, Sweden AvestaPolarit, Finland OUTKUMPU, Spain Acerinox, South Africa Columbus
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.