Stainless Steel 347 Flat & Spring Washers

Stainless Steel 347 Flat Washers is an austenitic stainless steel that offers exceptional corrosion resistance, high strength and toughness. It contains more chromium and nickel compared to other types of stainless steel, making it suitable for applications in highly corrosive environments.

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• UNS

  S34700

• WNR

  1.4550

• ASTM / ASME

  ASTM A 193 / SA 193

• SHARE

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Features: Both the flat washer and spring washer made from Stainless Steel 347 have similar properties and features.

Corrosion Resistance: Stainless Steel 347 has a high level of corrosion resistance, making it ideal for use in harsh environments such as chemical processing, oil and gas refineries, and saltwater applications.

High strength: The addition of niobium in the alloy composition gives Stainless Steel 347 enhanced strength compared to other austenitic stainless steel grades.

Heat resistance: Stainless Steel 347 has excellent heat resistance, making it suitable for use in high-temperature applications. It can withstand continuous exposure to temperatures up to 800°C (1472°F).

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SS 347 Flat & Spring Wahers Specification

Applications: Due to its impressive features, Stainless Steel 347 flat washer and spring washer have a wide range of applications in various industries.

Chemical processing: The high corrosion resistance of Stainless Steel 347 makes it suitable for use in chemical processing equipment, such as reactors and storage tanks.

Oil and gas industry: The toughness and strength of Stainless Steel 347 make it ideal for use in offshore oil rigs, pipelines, and other equipment used in the oil and gas industry.

Aerospace: Stainless Steel 347 is commonly used in aircraft engine parts and other components that require high strength and heat resistance.

Food processing: The corrosion resistance of Stainless Steel 347 makes it suitable for use in food processing equipment, where it may come into contact with acidic or corrosive substances..

Heat Treatment:

Stainless Steel 347 Flat Washers can be hardened by heat treatment to increase its strength and toughness. The recommended heat treatment process is solution annealing at 1010-1121°C (1850-2050°F) followed by rapid cooling in water or air. This process helps to dissolve any carbides that may have formed during the manufacturing process and restores the material's corrosion resistance.

Machining:

Stainless Steel 347 Spring Washer is considered to be more difficult to machine compared to other austenitic stainless steel grades due to its high strength and toughness. It requires sharp tools, slow speeds, and heavy feed rates for optimal results. Additionally, the use of sulfur-based cutting fluids is not recommended as it can lead to pitting corrosion on the surface of the material.

Equivalent Grades Of Stainless Steel 347 Flat & Spring Wahers

Chemical Composition of Stainless Steel 347 Flat & Spring Washers

Mechanical Properties of SS 347 Flat & Spring Washers

Types of Stainless Steel 347 Flat & Spring Washers