What is SUS304 and SUS430 stainless steel?

Why do people always like to compare SUS304 and SUS430 stainless steel? Mainly because they are both stainless steel materials, and there are significant differences in many aspects, which make them have their own advantages in different application scenarios.
In this blog post today, we will compare SUS304 and SUS430 stainless steel in several aspects, so that you can have a clearer understanding when purchasing stainless steel products.

what is sus304 stainless steel meaning?

SUS304 stainless steel is an 18-8 series austenitic stainless steel. Due to the different deformation degrees of each part of the material during stamping, it presents an austenitic single-phase structure at room temperature, has high plasticity and toughness, and is suitable for various corrosive environments.

What is sus430 stainless steel?

SUS430 belongs to "ferritic stainless steel", also known as "18 chromium stainless steel", which is also a rust-proof alloy. The amount of chromium added is about 18%. It is a cheap and widely used stainless steel.

SUS430 stainless steel VS SUS304

Magnetic or not
SUS430 is magnetic, SUS304 is not. SUS304 is mainly used in places where magnetism is unacceptable. However, even SUS304 may produce magnetism due to work hardening such as "sheet metal bending", so you need to be careful.

Price advantage
The price of sus430 material is cheaper. The reason is that unlike SUS304, it does not contain nickel.

Corrosion resistance:
SUS430 has good corrosion resistance, especially in reducing environments. It has low hardness, but good ductility, toughness and wear resistance.
SUS304 has better corrosion resistance in oxidizing environments, and its hardness is higher, its tensile strength is larger, but its plasticity is slightly lower.
Sus430 material does not contain nickel, so its corrosion resistance is not as good as SUS304.

SUS430 stainless steel VS SUS304 Application fields:
SUS430 stainless steel is mainly used in food industry, chemical equipment, building decoration, automotive parts and other fields.
SUS304 stainless steel is widely used in food industry, pharmaceutical industry, building decoration, kitchen utensils, automotive parts, aerospace and other fields.

If your application scenario has high requirements on cost and does not require particularly high corrosion resistance and strength, then SUS430 may be a good choice. If your application scenario requires excellent corrosion resistance, high strength and non-magnetic properties, then SUS304 is more suitable.
If your project is looking for SUS304 and SUS430 stainless steel, you might as well consider GNEE.
GNEE specializes in supplying stainless steel plates, stainless steel pipes, stainless steel coils, stainless steel foils, stainless steel profiles, stainless steel pipe fittings and other products.
We have 16 years of export experience and export 10,000 tons of stainless steel products every year. Welcome to inquire! info@gneestainless.com

Material Grade we have

1)300series:301,303,304,304L,304LN,304N,309,309S,310,310S,316L,31 6Ti,317L,321,321H,347H,1.4319,1.4305,1.4301,1.4306,1.4833,1.4845, 1.4404,1.4571,1.4438,1.4541, SUS304,SUS304L,SUS309S,SUS310S,SUS316,SUS316Ti,SUS316L,etc 2)400series:409,409L,410S,420,430,440C,444,1.4016,1.4006,1.4002,1.4125,1.4501,1.4362,1.4460,1.4521,1.4545, 1.4547, ,etc