ASTM A789 Stainless Steel Seamless Tube S31803 / S32750 Duplex Steel
ASTM A789 Stainless Steel Seamless Tube S31803 /S32750 Duplex Steel
Excellent corrosion resistance in a variety of corrosive chemicals
Pitting resistance equivalent value (PREN) & GT; 41
Excellent pitting and crevice corrosion resistance in seawater and other chloride-containing environments
Critical corrosion temperature over 50°C
High strength compared with austenitic and 22%Cr duplex stainless steel
Excellent ductility and impact strength at ambient and sub-zero temperatures
Product Description
| Product Name | stainless steel round tube |
| Material | stainless steel |
| Surface | Pickling/Bright/Polished |
| Standard | ASTM DIN GB JIS EN |
| Grade | 201, 304, 316, 304L, 316L, 321, 347H, 2205, 2520, 904L,32304,31803 etc. |
| Technique | Cold Rolled Hot Rolled |
| Certification | ISO9001, SGS, BV |
| Used | Building Industry Machinery, etc. |
| MOQ | 1 Ton |
| Payment terms | L/C at sight or T/T (30% as deposit) |
| Packing | Export standard package or as customers' request |
| Delivery time | Usually 7-15 dyas, or upon negotiation |
| price terms | FOB,CRF,CIF,EXW all acceptable |
| Samples | Free samples are provided but the fright is borne by the buyer |
Chemical composition
|
Grade
|
C≤
|
Mn≤
|
Si≤
|
S≤
|
P≤
|
Cr≤
|
Ni
|
Mo
|
Cu≤
|
N
|
|
S32750(SAF2507)
00Cr25Ni7Mo4N
|
0.03
|
1.20
|
0.8
|
0.020
|
0.035
|
24.0/26.0
|
6.0/8.0
|
3.0/5.0
|
0.50
|
0.24/0.32
|
|
S31803(SAF2205)
00Cr22Ni5Mo3N
|
0.03
|
2.00
|
1.0
|
0.020
|
0.030
|
21.0/23.0
|
4.50/6.50
|
2.50/3.50
|
0.08/0.20
|
|
|
S31500(3RE60)
00Cr18Ni5Mo3Siz
|
0.03
|
1.2/2.00
|
1.4/2.00
|
0.030
|
0.030
|
18.0/19.0
|
4.25/5.25
|
2.50/3.00
|
0.05/0.10
|
Mechanical properties
|
Grade
|
σb(Mpa)≥
|
σs(Mpa)≥
|
δ(%)≥
|
Hardness
|
|
|
布氏(HB)
|
洛氏(HRC)
|
||||
|
S32750(SAF2507)
00Cr25Ni7Mo4N
|
800
|
550
|
15
|
310
|
32
|
|
S31803(SAF2205)
00Cr22Ni5Mo3N
|
620
|
450
|
25
|
290
|
30.5
|
|
S31500(3RE60)
00Cr18Ni5Mo3Siz
|
630
|
440
|
30
|
290
|
30.5
|
Product Image
Packing & Shipping
FAQ
Q1: ARE YOU FACTORY OR TRADER?
A1: Our company is a cold rolling manufacturer of magnetic stainless steel coil since 2009. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Stainless Steel Coils / Strips, Stainless Steel Sheets / Plates, Stainless Steel Circles / Discs, Decorative Stainless Steel Sheets.
Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.
Q4: HOW TO VISIT YOUR FACTORY?
A4: Most of the main cities have flights to Wuxi; you can take flight to Wuxi Shuofang International Airport.
If you come from Shanghai, it will take 2 hours by flight (every day 5 flights).
If you come from Hongkong, it will take 1 hour by flight (every day 1 flight around noon time).
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.