Overview of Stainless Steel Plate

A stainless steel plate is a flat sheet made from steel alloys containing chromium, offering enhanced resistance to corrosion, staining, and rust. Widely used in construction, manufacturing, and various industries for its durability, strength, and aesthetic qualities, stainless steel plates are essential materials for numerous applications.

Features of Stainless Steel Plate

Corrosion Resistance: High resistance to corrosion and rust, even in harsh environments.

Durability and Strength: Extremely durable with high tensile strength.

Temperature Resistance: Performs well under both high and low temperatures.

Hygienic Surface: Easy to clean and maintain, making it ideal for food and medical industries.

Aesthetic Appeal: Available in various finishes, enhancing architectural designs.

Recyclability: Environmentally friendly due to its recyclability and long lifespan.

Specifications of ASTM SUS420J1 420 UNS S42000 STS420J1 1.4021 20Cr13 AS 420 Stainless Steel Plate

ASTM SUS420J1/ 420/ UNS S42000 Stainless-steel Plate

Material Review

ASTM SUS420J1, additionally known as 420 stainless-steel, UNS S42000, STS420J1, 1.4021, or 20Cr13, is a martensitic stainless-steel. It consists of regarding 12– 14% chromium and a higher carbon material than many various other stainless qualities. This offers it strong firmness and good wear resistance after warm therapy.

Trick Features

This steel supplies high strength and moderate rust resistance. It can be solidified by warmth therapy, that makes it suitable for components that require both durability and edge retention. The material devices well in its stiff state. After hardening, it holds a sharp side– suitable for cutting devices, medical instruments, and valve components.

Chemical Composition (Typical %)

– Carbon (C): 0.16– 0.25.
– Chromium (Cr): 12.0– 14.0.
– Manganese (Mn): ≤ 1.00.
– Silicon (Si): ≤ 1.00.
– Phosphorus (P): ≤ 0.040.
– Sulfur (S): ≤ 0.030.

Mechanical Residences

In the stiff problem, tensile stamina varieties from 520 to 700 MPa, with a return toughness of a minimum of 225 MPa. Prolongation is typically about 20%. After satiating and solidifying, firmness can get to 50– 55 HRC, depending upon the exact heat therapy process made use of.

Usual Applications

420 stainless-steel plate is extensively used in producing blades, oral and medical devices, pump shafts, bearings, and bolts. It is likewise chosen for parts subjected to mild corrosive environments where high toughness and use resistance are needed.

Standards & Matchings

This quality fulfills numerous global criteria:.
– ASTM A240/A240M.
– JIS G4303 (SUS420J1).
– GB/T 1220 (20Cr13).
– EN 10088-3 (1.4021 ).
– AS 420 (Australian Criterion).

Home plate is readily available in different thicknesses, widths, and surface coatings to fit various commercial needs.

Applications of ASTM SUS420J1 420 UNS S42000 STS420J1 1.4021 20Cr13 AS 420 Stainless Steel Plate

Applications of 420 Stainless Steel Plate

Where This Steel Is Made use of

420 stainless-steel plate— likewise referred to as ASTM SUS420J1, UNS S42000, STS420J1, 1.4021, 20Cr13, or AS 420– is a martensitic stainless steel with good firmness and modest rust resistance. It consists of about 12– 14% chromium and can be heat-treated to accomplish high toughness.

This material is widely made use of in sectors that require solid, wear-resistant components. One usual usage remains in cutting devices. Blades, medical blades, and industrial cutters typically utilize 420 stainless steel since it holds a sharp side well and resists corrosion much better than carbon steel.

An additional major application remains in the medical area. Surgical instruments like scalpels, forceps, and dental tools are made from this steel. It meets hygiene criteria and can be sanitized repetitively without losing efficiency.

In the food processing industry, 420 stainless steel shows up in devices such as slicers, mixers, and conveyor parts. These elements have to remain clean and stand up to wear during daily use. The steel’s smooth surface area assists avoid microbial build-up.

Molds and passes away for plastics additionally utilize this quality. It uses enough solidity to withstand repeated molding cycles while withstanding mild destructive settings. Injection molding tools and extrusion dies gain from its equilibrium of sturdiness and machinability.

Other uses consist of valve parts, pump shafts, and fasteners in slightly harsh setups. It is not suitable for aquatic or highly acidic conditions however functions well in dry or gently damp environments.

Manufacturers select 420 stainless-steel plate when they require a cost-effective solution that delivers strong mechanical buildings without requiring top-tier rust resistance. Its ability to be brightened to a high finish also makes it ideal for visible parts where look issues.

Company Introduction

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Shipment Methods

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5 FAQs of ASTM SUS420J1 420 UNS S42000 STS420J1 1.4021 20Cr13 AS 420 Stainless Steel Plate

Frequently Asked Questions About ASTM SUS420J1 Stainless Steel Plate

What is ASTM SUS420J1 stainless steel?

ASTM SUS420J1 is a type of martensitic stainless steel. It contains about 12–14% chromium and 0.16–0.25% carbon. This grade is also known as UNS S42000, STS420J1, 1.4021, or 20Cr13 under different standards. It offers good hardness and moderate corrosion resistance.

Where is this steel plate commonly used?

This steel is often used in cutlery, surgical instruments, valves, pump shafts, and other parts that need wear resistance and some level of rust protection. It works well in mildly corrosive environments but is not suitable for highly acidic or chloride-rich conditions.

Can it be heat treated?

Yes. SUS420J1 responds well to heat treatment. You can harden it by heating to around 980–1050°C, then quenching in oil or air. After that, tempering at 150–370°C improves toughness while keeping high strength. Heat treatment helps achieve the right balance of hardness and ductility.

How does it compare to other 420 grades?

SUS420J1 has lower carbon than SUS420J2, so it is slightly less hard but easier to machine and weld. Compared to 410 stainless steel, it offers better hardness after heat treatment but similar corrosion resistance. Choose SUS420J1 when you need a mix of strength, machinability, and basic rust resistance.

Is welding possible with this material?

Welding is possible but requires care. Preheat to 150–300°C before welding. After welding, perform post-weld heat treatment to reduce cracking risk and restore mechanical properties. Without proper steps, weld zones may become brittle or crack. Always use matching filler metals for best results.