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S31803 Duplex Steel Heat Exchanger Tube With Annealed&Pickling Surface
Material: Alloy 400, UNS N04400; Alloy 625, UNSN06625; Alloy 601, UNSN06601; Alloy 600, UNSN06600; Alloy 825, UNSN08825, 2.4858; Alloy 800, UNS N08800; S32750,1.4410, 2507, F53; S32205, S31803, 1.4462; 316L, 1.4401, 1.4404, 1.4435; 304L, 1.4306, S30403, 1.4307;
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S31803 Duplex Steel Heat Exchanger Tube With Annealed&Pickling Surface
Our heat exchanger tube with pickling and annealing surface is very popular in boilers and heat exchangers industry , water heater industry , air-conditioning industry etc . This kind of seamless tubes are have a very important position in our all products .
| Grade | S31803; TP304 ; TP304H ; TP304L ; TP316 ; TP316L ; TP 321 ; TP321H ; TP317L ; TP310S ; TP347H |
Standard | ASTM A789 , ASTM A213 , ASTM A 269 , etc |
| Size | Routine OD : 19.05mm,25.4mm,31.8mm,38.1mm |
| WT : 1.2-2.77mm | |
Length : | According to customer needs up to 20m |
| Advantage | Superior surface finish Better mechanical property More precise dimension ; Perfect inspection method and inspection equipment |
Duplex U Tube Application :
a) Petroleum , chemical enterprise , super heater of boiler and heat exchanger
b) High temperature-resistant transmission fluid pipe in power station
c) Ship with pressure pipe
d) Exhaust purification device
e) Construction and ornament
f) solar industry , military , semiconductor etc
Duplex Steel Tube Terms & Conditions :
1 . Price Term : FOB , CFR , CIF or as negotiation
2 . Payment : T / T , L / C or as negotiation
3 . Delivery time : 30 working days after received your deposit ( Normally according to the order quantity )
4 . Package : Iron case ; woven bag or as per customer’s requirement
5 . Quality Requirement : Mill Test Certificate will be supplied with shipment , Third Part Inspection is acceptable
Duplex Steel Tube Chemical Composition:
| 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 |
VIP SERVICE
VR (Virtual) Mill Introduction
Professional Remote Technical Guidanceion
Accept Third-party Inspection
Door to Door Shipment
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