S32750 is the standard grade of super-duplex stainless steel based on 25% chromium, 7% nickel and significant additions of molybdenum, manganese and nitrogen. As with many of the duplex grades, S32750 also offers high strength and excellent resistance to chloride stress corrosion cracking, while the molybdenum and nitrogen levels enhance the pitting, crevice and general corrosion resistance.
Related Specifications of S32750
- NACE MR 0175
- ISO 15156-3
- NORSOK M-630
Nominal Composition of S32750
Fe rem, Cr 25.0%, Ni 7.0%, Mo 4.0%, N 0.28%
Mechanical Properties of S32750
|Ultimate Tensile Strength (N/mm²)||Proof Stress (N/mm²)||Elongation (%)||Hardness (HB)|
Key Features of S32750
- Very high strength
- Very good resistance to pitting and crevice corrosion
- Excellent resistance to chloride stress corrosion cracking
- Good workability and weldability
Applications of S32750
Offshore & marine | Offshore platforms and equipment; components for gas, oil and process cooling plants; wellhead and subsea wellhead fittings; desalination plants, seawater cooled heat exchangers and high strength fasteners
Chemical processing | Chemical tanks, flue gas filters, acid distillation components and heat exchangers
Columbia Metals – a leading supplier of S32750
With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of S32750 and other high quality specialist engineering alloys.
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