TSING SHAN STEEL INDUSTRIAL LIMITED
TSING SHAN STEEL INDUSTRIAL LIMITED
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All our super-duplex materials are produced by Norsok M-650 Ed.4 and/ or ISO 17782 qualified manufacturers.
Super Duplex UNS S32750 is the most common super duplex grade in the market. UNS S32750 is a duplex especially designed for service in aggressive chloride-containing environments. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength. It is widely used in oil & gas, hydropower, pressure vessels, pulp & paper, structural components and chemical tankers.
The main applications are for details with special requirements for high corrosion resistance.
UNS S32750 is characterized by:
Weldability
Very good.
| Weight % | C | Mn | P | S | Si | Cr | Ni | Mo | Cu | N | PRE |
| Min. | 24,0 | 6,00 | 3,00 | 0,24 | 41 | ||||||
| Max. | 0,030 | 1,20 | 0,025 | 0,010 | 0,80 | 26,0 | 8,00 | 4,50 | 0,50 | 0,32 |
PREN = % Cr + 3.3 % Mo + 16 % N ≥ 41
General:
Plate, sheet and coil:
ASTM A240, EN 10028-7, EN 10088-2, EN 10088-4, Norsok M-630 MDS D55
Bar and forging:
ASTM A276, ASTM A479, ASTM A182, EN 10088-3, Norsok M-630 MDS D54/D57
Other products:
As per applicable ASTM and/or EN standards and Norsok M-630 MDS
| Yield strength Rp0.2, MPa | Tensile strength Rm, MPa | Elongation [%] | Hardness [HB] | Impact, Charpy-V, -46ºC [J] | |
| BAR | ≥ 550 | ≥ 750 | ≥ 25 | ≤ 300 | ≥ 65 |
| PLATE CR (COIL) | ≥ 550 | 750 – 1000 | ≥ 25 | ≤ 310 | ≥ 45 |
| PLATE HR (COIL) | ≥ 550 | 750 – 1000 | ≥ 25 | ≤ 310 | ≥ 45 |
| PLATE (QUARTO) | ≥ 550 | 750 – 930 | ≥ 25 | ≤ 310 | ≥ 45 |
