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Uses of 17-4 PH Stainless Steel

17-4 PH Stainless Steel BarsStainless steel is a standard alloy popular to make a variety of products. Heat treatments are useful to strengthen stainless steel, resulting in precipitation hardening of the material. 17-4 PH stainless steel is among the most popular forms of PH stainless steel.

Metals are useful for various products, from everyday cooking utensils to spacecraft. Just like the stainless steel, it possess unique qualities and properties. Several components necessitate the use of elements with specific attributes. Whenever metal isn’t suitable for a given application, it’s a mixture of many elements to form an alloy.

17-4 PH Stainless Steel Bars

17-4 PH steel is a precipitation-hardening martensitic stainless steel containing nickel, copper, and chromium. 17-4 stainless steel provides a unique combination of strong corrosion resistance, toughness, and high strength in welds and base metals.

This alloy has outstanding corrosion resistance similar to 304-grade stainless steel for various food, paper, and chemical industries, and it resists corrosive effects better than many other stainless steels. Certain qualities enable manufacturers to improve product reliability while simplifying manufacturing and, in many cases, lowering costs.

It can maintain high strength up to 600°F. At higher temperatures, 17-4 PH offers excellent resistance against stress corrosion cracking (SCC). 17-4 PH has a particular combination of characteristics, making it an excellent option for various design and manufacturing issues.

17-4 PH Stainless Steel Bars
17-4 PH Stainless Steel Bars


17-4 PH is better known as grade 630 stainless steel and is helpful as the precipitation-hardening metal. It requires heat treatment to generate a broad range of incredibly high-strength qualities compared to similar PH alloys. 

It has more ferrite than typical PH grades, making it significantly more magnetic. Heat treatments can be applicable prior to cold working to increase formability. 

17-4 PH has good corrosion resistance and hardness in welds and base metals. It’s ideal for uses that demand simple construction, additional strength, and hardness for increased reliability. That is why the grade is useful in the aerospace, pulp & paper, food processing, and nuclear industries.


17-4 PH stainless steel has several applications in the paper, aerospace, food processing, and petrochemical industries. It’s useful for a variety of general metalworking applications.

Aerospace Industry

17-4 PH is useful in the aerospace industry because it has excellent resistance to corrosion and great tensile strength. Such advantages are critical since airplane components and parts, as well as various aerospace equipment, must operate in a variety of environments and temperatures, making corrosion resistance with high strength essential.

Pulp & Paper Industry

The alloy’s adaptability makes it useful in industries such as paper and pulp. This industry requires stainless steel bar stock types that are both corrosion resistant and sturdy enough to function in extreme conditions. As a result, 17-4 stainless steel bar is an excellent option for the pulp and paper industries. Because the paper and pulp industries interact with water and chemicals, stainless steel bar stock with high corrosion resistance is necessary. It also saves money as the equipment is not prone to rust and breakage.

Nuclear Industry

Every nuclear sector needs to utilize stainless steel. Nuclear power plants must deal with water, fuel, and chemicals to create electricity. As a result, they must employ a 17-4 stainless steel bar with strong corrosion resistance and outstanding toughness. Stainless steel grade 17-4 PH is valuable to make dry casks.

The dry cask’s construction uses a 17-4 PH round bar and 17-4 PH stainless steel screws, guaranteeing that the spent nuclear fuel is kept securely.

Food Processing Industry

17-4 PH stainless steel is always the first preference for every food processing industry for fabricating equipment since it has good resistance to corrosion. The alloy’s surface finish and high chromium content make it less vulnerable to corrosion, easy to clean, and highly durable, which is essential in the food processing industry.

Motor & Pump Shafts

This stainless steel is an ideal choice for manufacturing various components for pumps and motors as it has high strength, toughness, and excellent resistance to corrosion.

Oil & Gas Industry

It is helpful in the gas and oil sector for two significant reasons. Firstly, oil is often found at enormous depths below sea level. Because of its high strength, 17-4 PH round bar is an excellent choice for piping at these depths. Secondly, Grade 17-4 PH is highly resistant to corrosion onshore and offshore.

It is the best material for drilling rigs and oil pipes due to its excellent resistance to corrosion attacks by hydrogen sulfide, carbon dioxide, and poor pH levels during oil prospecting settings.

The Perfect Blend of Strength, Corrosion Resistance, and Versatility

Undeniably, 17-4 PH stainless steel is the most commonly useful PH stainless steel grade. The 17-4 PH grade possesses a perfect mix of resistance to corrosion, excellent tensile strength, plus good mechanical qualities at extreme temperatures. These properties make it a highly versatile alloy that is practical for various applications. It is the best and most popular stainless steel bar stock due to its exceptional qualities and low cost.

Advance Grinding is the most dependable producer of stainless steel bar stock, with years of expertise in producing stainless steel bar stock in various forms and grades for a variety of industrial uses. Request a quote today!

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