1 / 2 Inch Duplex Steel Small Diameter Welded Tube For Heat
Exchanger
1.Material Grade S32205, S31803, S32304, S32750, F51, F53, 2205, 2507 etc
2.Outer Diameter3.18mm to 101.6mm
3.Wall Thickness 0.5mm to 20mm
4.Length Normally fixed length 6m, can as per customer’s requirement
5.Standard ASTM A789; ASTM A790; EN 10216-5ect.
6.Process Method Cold Drawn or Cold Rolled
Application
a) Petroleum
b) Chemical industry
c) Instrument
d) Industrial transportation
e) Mechanical structure industry
f) Need high corrision ability pipe's industry, such as offshore
industry etc
Advantages
a) Superior surface finish,
b) Better mechanical property
c) More precise dimension
d) Perfect inspection method and inspection equipment
Price Item FOB, CFR, CIF or as negotiation
Payment T/T, LC or as negotiation
Delivery Time 30 working days after received your deposit (Normally
according to the order quantity)
Package Iron case; woven bag or as per customer’s requirement
Requirement Mill Test Certificate will be supplied with shipment,
Third Part Inspection is acceptable
Quality Test NTD(Ultrasonic test, Eddy Current test);
Mechanical Test(Tension Test, Flaring Test, Flattening Test,
Hardness Test, Hydraulic test);
Metal Test(Metallographic Analysis, Impact Test-High/low
temperature);
Chemical Analysis(Photoelectric Emission Spectroscopic)
Main Market Europe, Middle East, Southeast Asia, South America. Etc
Price Item | FOB, CFR, CIF or as negotiation |
Payment | T/T, LC or as negotiation |
Delivery Time | 30 working days after received your deposit (Normally according to
the order quantity) |
Package | Iron case; woven bag or as per customer’s requirement |
Quality Requirement | Mill Test Certificate will be supplied with shipment, Third Part
Inspection is acceptable |
Test | X-ray, Size test, Length test |
Chemical Analysis(Photoelectric Emission Spectroscopic) etc |
Main Market | Europe, Middle East, Southeast Asia, South America. Etc |
| UNS Designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| max | max | max | max | max |
| S31803 | 0.03 | 1 | 2 | 0.03 | 0.02 | 21.0 - 23.0 | 4.5 - 6.5 | 2.5 - 3.5 | 0.08 - 0.20 | - |
| S32205 | 0.03 | 1 | 2 | 0.03 | 0.02 | 22.0 - 23.0 | 4.5 - 6.5 | 3.0 - 3.5 | 0.14 - 0.20 | - |
| S32750 | 0.03 | 0.8 | 1.2 | 0.035 | 0.02 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 5.0 | 0.24 - 0.32 | 0.5 max |
| S32760 | 0.05 | 1 | 1 | 0.03 | 0.01 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 4.0 | 0.20 - 0.30 | 0.50 -1.00 |
