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[China]
Address: Room 1703, 17th Floor, Building 5, Jinyin Modern City, Guangdian South Road, Jinshui District, Zhengzhou City, Henan Province, China.
Contact name:Vicky
Zhengzhou Huitong Pipeline Equipment Co.,Ltd. |
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Alloy 31 ASTM B619 B622 B626 UNS N08031 Seamless Welded Pipes Tubes
1. Alloy 31 Seamless Welded Pipes Tubes Specifications
| Specifications | : | ASTM B619 B622 B626 |
| Dimensions | : | ASTM, ASME and API |
| Tube Size | : | 4 to 219mm W. T.: 0.5 to 20mm |
| Specialized in | : | Large Diameter Size |
| Length | : | Within 13500mm |
| Type | : | Seamless / ERW / Welded / Fabricated |
| Form | : | Round, Hydraulic Etc |
| Length | : | Single Random, Double Random & C |
2. MATERIAL DESCRIPTION
• Alloy 31 is a nickel, chromium and molybdenum stainless steel
with nitrogen and cupper additions. It combines moderate tensile
strength and high ductility with excellent corrosion resistance in
sulfuric acid, reducing and oxidizing media and has strong
resistance to corrosion and erosion corrosion in phosphoric
environment.
• Typically the alloy has PREN of ≥ 48, which ensure that the
resistance to pitting corrosion is high.
CHEMICAL COMPOSITION
| WEIGHT% | C | SI | MN | S | P | CR | NI | MO | N | CU |
| MIN. | 26,0 | 30,0 | 6,0 | 0,15 | 1,0 | |||||
| MAX. | 0,015 | 0,3 | 2,00 | 0,010 | 0,020 | 28,0 | 32,0 | 7,0 | 0,25 | 1,4 |
PREN = (CR% + 3.3MO% + 16N%) ≥ 48
PRODUCT STANDARDS: ASTM B625 – 14
APPROVALS: FOR USAGE IN PRESSURE VESSELS WITH WALL TEMPERATURES
BETWEEN -196°C TO 550°C
APPLICATIONS
Typical applications: Pulp and paper industry, flue gas desulphurization – FGD – systems, sea water heat exchangers, petroleum production and refining industry, mining industry – ore processing…
3. Alloy 31 Tube Price List
.31 Alloy seamless tubes
.US $2500-4100 / Ton (FOB Price)
.seamless tube astm b729 Alloy 31
.US $20-1200 / Ton (FOB Price)
.Alloy 31 seamless tube
.US $500-2000 / Ton (FOB Price)
.ASTM B468 31 Alloy welded tube
.US $850-2200 / Metric Ton (FOB Price)
.sb729 seamless tube
.US $1.5-9 / Kilogram (FOB Price)
.Alloy 31 seamless tube manufacturer
.US $850-2200 / Metric Ton (FOB Price)
.ASTM B468 Gr.31 Welded Tube
.US $500-1000 / Ton (FOB Price)
4. Alloy 31 Seamless / Welded Tubes Application Industries
.Off-Shore Oil Drilling Companies
.Power Generation
.Petrochemicals
.Gas Processing
.Specialty Chemicals
.Pharmaceuticals
.Pharmaceutical Equipment
.Chemical Equipment
.Sea Water Equipment
.Heat Exchangers
.Condensers
.Pulp and Paper Industry
