What Is Duplex Stainless Steel?
Duplex stainless steel is a unique material, in which ferrite and austenite phases each account for about 50%. Some models also scientifically add molybdenum, nitrogen, copper and other alloying elements to create a super alloy with high strength and excellent corrosion resistance.
T&Y Hardware uses this high-quality duplex stainless steel as the raw material to carefully craft fasteners in many specifications. The dimensions are accurate and correct, and the international universal thread design is adopted, with minimal error; As an old brand with a history of 23 years, T&Y Hardware always adheres to the principle of quality first, so that customers can have no worries about quality during use.
Professional Duplex Stainless Steel Fasteners Suppliers
We specialize in supplying screws, nuts, and locking washers made of popular duplex stainless steel grades such as F51, F53, F55, F60, F61, etc. The product specifications are complete, and sizes are readily available, which can fully meet the routine needs of most customers.
In addition, according to the special specifications of customers, we also provide personalized customized services, and fully support OEM and ODM cooperation models to fully help your project needs.
Duplex Stainless Steel F51 FastenersAlso known as 2205 duplex stainless steel, F51 has medium strength and good resistance to common corrosion cracking. The strength is approximately twice the strength of standard austenitic stainless steel. Used for ship structural parts, offshore platforms and submarine pipelines, pipeline connections in the oil and gas industry.
UNS: S31803/S32205
JIS: SUS32953L
W.Nr: 1.4462
Main Products: Bolt, nut, washer, screw, anchor, threaded rod, etc
Size: M5-M100
Super Duplex F53 FastenersF53 stainless steel offers excellent resistance to pitting, crevice and uniform corrosion due to its high content of both chromium and molybdenum. Greater surface strength can be achieved by cold working. Typical applications include many components in the oil and gas, marine, machining and pollution control industries.
UNS: S32750
ASTM: 2507
W.Nr: 1.4410
Main Products: Bolt, nut, washer, screw, anchor, threaded rod, etc
Size: M5-M100
Duplex Stainless Steel F55 FastenersDuplex stainless steel F55 has high mechanical strength and good ductility at atmospheric temperature and sub-zero temperature, and can also be used in acidic medium working environment. Primarily used in oil and gas and marine applications, it is commonly used in pressure vessels, choke valves, trees, flanges and piping systems.
UNS: S32760
W.Nr: 1.4501
Main Products: Bolt, nut, washer, screw, anchor, threaded rod, etc
Size: M5-M100
Duplex Stainless Steel F60 FastenersF60 combines the beneficial properties of ferrite and austenite, and has good chloride ion stress corrosion resistance and sulfide stress corrosion resistance. At the same time, it has high mechanical strength. It is mainly used in papermaking equipment, food processing equipment, thermal power plant flue gas desulfurization equipment, offshore oil platform, desalination equipment, oil field pipeline and equipment, and other chemical equipment.
Main Products: Bolt, nut, washer, screw, anchor, threaded rod, etc
Size: M5-M100
Duplex Alloy Steel F61 FastenersF61 has relatively resistance to chloride corrosion and is mainly used in chemical processing, petrochemical industry and submarine equipment. And widely used in chemical industry, food, medicine, paper making, petroleum, atomic energy and other industries, as well as various parts of construction, kitchen utensils, tableware, vehicles and household appliances.
UNS: S32205
W.Nr: 1.4605
Main Products: Bolt, nut, washer, screw, anchor, threaded rod, etc
Size: M5-M100
- Our Certificate
- Customer Feedback
Based on obtaining ISO9001 quality management system certification, ISO45001 occupational health and safety management system certification, ISO14001 environmental management system certification, and ROHS environmental protection directive compliance certification, we have also won the title of “China Integrity Enterprise” and won many awards, such as “Quality and Promise” and “Service and Promise”.These honors are not only a high recognition of our comprehensive strength, but also a powerful testimony to our efforts on the road of honest management, quality control, and service optimization.
Related Products
Dual phase stainless steel has a dual-phase structure of magnetic ferrite and non-magnetic austenite. Due to the balanced proportion of the two phases, it exhibits weak or moderate magnetic characteristics as a whole.
Duplex stainless steel is an important member of the stainless steel family, which mainly includes austenitic, martensitic, ferritic, precipitation hardening, and duplex types. In practical applications, austenitic stainless steel is more commonly used, while duplex stainless steel stands out due to its higher strength and excellent resistance to intergranular corrosion and chloride stress corrosion.
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