Torich International Limited--The Steel Tube Maker
Model No.: S31803
Brand: Torich
Place Of Origin: Zhejiang,China
Alloy Or Not: Non-alloy
Section Shape: Round
Type: Seamless
Usage: Other
Technique: Cold Drawn
Surface Treatment: Oiled
Keyword: Duplex Stainless Steel Pipe
Application: For Boilers,Superheaters,Steam Linepipes Of Boilers
Product Name: Duplex S31803 Seamless Pipe
Grade: S31803
Packaging: Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Transportation: Ocean,Land,Air
Place of Origin: zhejiang,China
Port: Ningbo
Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
The ASTM A789 UNS S31803 tubing refers to seamless and welded tubing manufactured in accordance with ASTM A789/ASTM A1789M, which contains approximately 50% ferrite and 50% austenite. The stress corrosion resistance of ASTM A789 in neutral chloride solution and H2S is better than that of 304L, 316L austenitic stainless steel, and 18-5mo type duplex stainless steel. The UNS S31803 tubing is especially suitable for the temperature range of -50°F/+600°F. It mayalso be considered for applications beyond this temperature range, but there are some limitations, especially when applied to weld structures.
CHEMICAL COMPOSITION
| Weight % | C | Si | Mn | S | P | Cr | Ni | Mo | N |
| Min. | 21,00 | 4,50 | 2,50 | 0,10 | |||||
| Max. | 0,030 | 1,00 | 2,00 | 0,015 | 0,030 | 23,00 | 6,50 | 3,50 | 0,22 |
NORSOK: N: 0,14 – 0,20%
Product Standards: EN 10088-3, ASTM A276, ASTM A479, ASTM A182–11A
(Chemical composition and mechanical properties only)
Approvals: NACE MR0175, NORSOK M650, NORSOK M630 MDS D41/D43/ D44/ D45/ D47
MECHANICAL PROPERTIES
| Yield strength Rp0.2, MPa | Tensile strength Rm, MPa | Elongation [%] | Hardness [HB] | Impact, Charpy-V, -46ºC [J] | Pre | |
| BAR | ≥ 450 | 650 – 880 | ≥ 25 | ≤ 270 | ≥ 45 | ≥ 34 |
| PLATE CR (COIL) | ≥ 500 | 700 – 950 | ≥ 25 | ≥ 45 | ≥ 34 | |
| PLATE HR (COIL) | ≥ 480 | 700 – 950 | ≥ 25 | ≥ 45 | ≥ 34 | |
| PLATE (QUARTO) | ≥ 480 | 680 – 840 | ≥ 25 | ≥ 45 | ≥ 34 |
FAQ: Q: Are you trading company or manufacturer ? A: A professional steel pipes materials inventor, manufacturer and solution provider A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity. A: Yes, we could offer the sample for free charge but need pay the cost of freight. A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment. Q: How long is your delivery time?
Q: Do you provide samples ? is it free or extra ?
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Product Categories : Seamless Steel Tubes
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