MTSCO is a leading manufacturer who is specialized in stainless steel seamless pipes , bright annealed tubes , seamless coiled tubing etc . In order to facilitate customers , we have welded pipes and tubes too . MTSCO has the most advanced producing and testing equipment . We can totally satisfy your requirement . According to standard very strictly , tubes which produced by us always have correct OD and WT tolerance .
Send InquiryASTM A789 / ASME SA789 UNS S31803 Duplex Steel Welded Tube
a) OD ( Outer Diameter ) : 3.18mm to 101.6mm
b) WT ( Wall Thickness ) : 0.5mm to 20mm
c) Length : According to customer's requirement
d) Standards : ASTM A312; ASTM A269; ASTM A789; ASTM A790 etc
e) Process Method : ERW, EFW etc
ndustry & Advantage | Application | a) For fluid and gas transport |
b) Structure and machining | ||
c) Heat exchanger pipes etc | ||
Advantages | a) Superior surface finish | |
b) Better mechanical property | ||
c) More precise dimension | ||
d) Perfect inspection method and inspection equipment | ||
Terms & Conditions | 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 | |
Quality | Test | X-ray, Size test, Length test |
Chemical Analysis(Photoelectric Emission Spectroscopic) etc | ||
Market | 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 |
Manufacturing Experience
Plant Area
Max Diameter of Welded Pipe
Annealing Furnace Length
Nickel Alloy
NI-MO: N10001,N10665,N10675...
NI-CR-MO: N10276,N06022,N06035,N06455,N06002...
NI-CR-MO-CU: N06030,N06200,N08031,N08825,N08020...
NICR-MO-W: N06230...
NICKEL: N02200,N02201...
NI-CU: N04400,N05500...
NI-CR-FE: N06600,N06601,N06690,N08800,N08810,N08811...
NI-CR-MO-NB: N06625,N07718...
Austenitic
304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L, 904L...
Duplex Steel
31803, 32205, 32750, 32760...
Cobalt Alloy
Alloy 188/ UNS R30188, Alloy L-605/ UNS R30605, Alloy S-816, Alloy 6B, UMCo50, FSX-414, MP-159...
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