Corrosion-Resisting Stainless Steel-JUNG YI STEEL

Corrosion-Resisting Stainless Steel

Corrosion-resistant stainless steel is a high-performance alloy known for its excellent resistance to corrosion, oxidation, and mechanical stress. It performs reliably in harsh environments involving acids, alkalis, and salts without rusting. Chromium (Cr) is the key alloying element, often combined with nickel (Ni), molybdenum (Mo), or manganese (Mn) to further enhance performance. Based on microstructure and composition, stainless steels are classified into austenitic, ferritic, martensitic, duplex, and precipitation hardening types. These steels are widely used in medical devices, food processing, chemical equipment, construction, and marine applications.

Product Applications

Applications of Corrosion-Resistant Stainless Steel
Thanks to its excellent resistance to corrosion, oxidation, and chemical attack, as well as good formability and strength, corrosion-resistant stainless steel is widely applied in the following areas:

Medical Devices: Surgical scissors, forceps, scalpel handles, orthopedic implants (e.g., bone screws), dental instruments.
Food & Kitchen Equipment: Cutlery, spoons, forks, frying pans, mixing tanks, food conveyors.
Architecture & Decoration: Elevator interiors, handrails, exterior facades, doorknobs, railings.
Marine & Seawater Applications: Desalination units, ship components, seawater pumps, valves.
Chemical & Dye Industries: Storage tanks, heat exchangers, reaction vessels, pipelines, valve seats.
Automotive & Transportation: Exhaust systems, trim parts, brake components, springs, washers.
Energy & Utilities: Hot water systems, boilers, pressure vessels, valve components.
Precision Instruments & Tools: Non-magnetic instrument housings, measuring tools, bearings, calipers, screwdrivers.

Austenite series

200: interior accessories, household appliance; 304: archite

Ferrite series

409 car exhaust pipe; 430 kitchenware,…etc. utensil,…etc

Martensite series

410: cutter, machine parts, disk brake; 420J2: cutter, measu

Duplex steel

329J: Material that can undergoes the exposure to seawater,

Steel data

Standard Code	Spec No.	Material No.	Mark
CNS			201
JIS			SUS303
JIS			SUS303Cu
AISI			303
CNS			303Cu
DIN	17440	1.4305	X10CrNiS18-9
AISI			303Se
JIS			SUS304
AISI			304
DIN	17440	1.4301	X5CrNi18-10
JIS			SUS304L
AISI			304L
DIN	17440	1.4306	X2CrNi19-11
AISI			304N
AISI			305
JIS			SUS316
AISI			316
DIN	17440	1.4401	X5CrNiMo17-12-2
JIS			SUS316L
AISI			316L
CNS			316J1
DIN	17440	1.455	X6CrNiNb18-10
CNS			410L
JIS			SUS410L
AISI			410
CNS			420J1
JIS			SUS420J1
AISI			420
DIN	17440	1.4021	X20Cr13
CNS			420J2

(C)%	(Si)%	(Mn)%	(P)%	(S)%	(Ni)%	(Cr)%	(Mo)%	(N)%	(Cu)%	Remarks
≦ 0.15	≦ 1	5.5~7.5	≦ 0.06	≦ 0.03	3.5~5.5	16~18		≦ 0.25
≦ 0.15	≦ 1	≦ 2	≦ 0.2	≦ 0.15	8~10	17~19	≦ 0.6
≦ 0.15	≦ 1	≦ 3	≦ 0.2	≧ 0.15	8~10	17~19	≦ 0.6		1.5~3.5
≦ 0.15	≦ 1	≦ 2	≦ 0.2	≦ 0.15	8~10	17~19	≦ 0.6
≦ 0.15	≦ 1	≦ 3	≦ 0.2	≧ 0.15	8~10	17~19			0.5~3.5
≦ 0.1	≦ 1	≦ 2	≦ 0.045	0.15~0.35	8~10	17~19
≦ 0.15	≦ 1	≦ 2	≦ 0.2	≦ 0.06	8~10	17~19
≦ 0.08	≦ 1	≦ 2	≦ 0.045	≦ 0.03	8~10.5	18~20
≦ 0.08	≦ 1	≦ 2	≦ 0.045	≦ 0.03	8~10.5	18~20
≦ 0.07	≦ 1	≦ 2	≦ 0.045	≦ 0.03	8.5~11	17~19
≦ 0.03	≦ 1	≦ 2	≦ 0.045	≦ 0.03	9~13	18~20
≦ 0.03	≦ 1	≦ 2	≦ 0.045	≦ 0.03	8~10.5	18~20
≦ 0.03	≦ 1	≦ 2	≦ 0.045	≦ 0.03	10~12	18~20
≦ 0.08	≦ 1	≦ 2.5	≦ 0.035	≦ 0.03	8~10.5	18~20		0.1~0.25
≦ 0.12	≦ 1	≦ 2	≦ 0.045	≦ 0.03	10.5~13	17~19
≦ 0.08	≦ 1	≦ 2	≦ 0.045	≦ 0.03	10~14	16~18	2~3
≦ 0.08	≦ 1	≦ 2	≦ 0.045	≦ 0.03	10~14	16~18	2~3
≦ 0.07	≦ 1	≦ 2			10.5~13.5	16.5~18.5	2~2.5
≦ 0.03	≦ 1	≦ 2	≦ 0.045	≦ 0.03	12~15	16~18	2~3
≦ 0.03	≦ 1	≦ 2	≦ 0.045	≦ 0.03	10~14	16~18	2~3
≦ 0.08	≦ 1	≦ 2	≦ 0.045	≦ 0.03	10~14	17~19	1.2~2.75		1~2.5
≦ 0.08	≦ 1	≦ 2	≦ 0.04	≦ 0.03	9~12	17~19				10xC%≦Nb≦1
≦ 0.03	≦ 1	≦ 1	≦ 0.04	≦ 0.03		11~13
≦ 0.03	≦ 1	≦ 1	≦ 0.04	≦ 0.03		11~13
≦ 0.15	≦ 1	≦ 1	≦ 0.04	≦ 0.03	≦ 0.6	11.5~14	0.3~0.6
0.16~0.25	≦ 1	≦ 1	≦ 0.04	≦ 0.03	≦ 0.6	12~14
0.16~0.25	≦ 1	≦ 1	≦ 0.04	≦ 0.03	≦ 0.6	12~14
≧ 0.15	≦ 1	≦ 1	≦ 0.04	≦ 0.03		12~14
0.17~0.22	≦ 1	≦ 1	≦ 0.045	≦ 0.03		12~14
0.26~0.4	≦ 1	≦ 1	≦ 0.04	≦ 0.03	≦ 0.6	12~14