Duplex Steel Nuts Manufacturer in Hamilton, New Zealand

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Santner Nickel Alloys, based in Hamilton, New Zealand, stands out as a top manufacturer and supplier of high-quality Duplex Steel Forgings. They’re known for their exceptional quality and performance in tough industrial environments. With a strong focus on precision engineering and cutting-edge forging techniques, the company creates components that boast remarkable strength, corrosion resistance, and long-lasting durability. Santner Nickel Alloys adheres to strict quality standards and offers tailored Duplex Steel Forgings to cater to various client needs. They serve a range of industries, including oil and gas, petrochemicals, marine engineering, and power generation, earning a solid reputation for delivering reliable, high-performance forged products.

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Duplex Steel Forgings are defined by their unique ferritic–austenitic microstructure, typically featuring 21–23% chromium, 4.5–6.5% nickel, 2.5–3.5% molybdenum, and nitrogen to boost structural stability. This specific makeup grants them excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, Duplex Steel Forgings offer high tensile and yield strength, outstanding toughness, and impressive fatigue resistance. Their ability to endure high pressures, temperature fluctuations, and corrosive environments makes them perfect for heavy-duty applications that demand a long service life and consistent performance.

Duplex Steel Nuts Specifications

Material
Specification
Standards
Size
Length
Duplex Steel  
IS BS ASTM
ASTM / ASME – A/ SA 479 / 479
3 mm to 200 mm
M02 to M30

Duplex Steel Nuts Chemical Composition

Cr N Ni C Mn Si P S Mo
S31803 min: 21.0 max: 23.0 min: 0.08 max: 0.20 min: 4.5 max: 6.5 0.03 max 2.0 max 1.0 max 0.03 max 0.02 max min: 2.5 max: 3.5
S32205 min: 22.0 max: 23.0 min: 0.14 max: 0.20 min: 4.5 max: 6.5 0.03 max 2.0 max 1.0 max 0.03 max 0.02 max min: 3.0 max: 3.5

Duplex Steel Nuts Mechanical Properties

Grade
Tensile Strength
(MPa) min
Elongation 
(% in 50mm)
Yield Strength
0.2% Proof (MPa) min
Hardness 
Rockwell C (HR C)
UNS-S 31803
650-880
25
448
 
UNS-S 32205
621
25
448
21 max

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ISO Certified

Largest Inventory

On Time Deliveries

Customer Support

Largest Manufacturer and Supplier of Duplex Steel Nuts in Hamilton, New Zealand

At Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Nuts in Hamilton, New Zealand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the New Zealand, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.

Types of Duplex Steel Nuts

Duplex Steel Nuts
Duplex Steel Square Nut
Duplex Steel Hex Nuts
Duplex Steel Dome Nuts
Duplex Steel Flange Nuts
Duplex Steel Lock Nuts

Contact us to get a quick quote for your requirement.

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

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Duplex Steel Nuts Uses

Duplex Steel Forgings find their place in industries where top-notch strength and corrosion resistance are crucial. In the oil and gas sector, they’re commonly used for flanges, valve components, connectors, and subsea equipment that face harsh conditions. Chemical and petrochemical facilities depend on them for pumps, reactor parts, and pressure-handling systems in corrosive settings. The marine and offshore industries utilize Duplex Steel Forgings for propeller shafts, couplings, and desalination equipment, ensuring reliability and performance even in the toughest environments.

Aerospace Industry

Defense Industy

Food Processing Industry

Construction Industry

Oil and Gas Industry

Petro Chemical Industry