Martensitic Stainless Steel – Samwon

| Characteristics by Stainless Steel Type

Martensitic Stainless Steels

| Characteristics and Applications of Martensitic

STS 403
Characteristics: This is a typical 13Cr steel type and is good in hardening and highly corrosion resistant.
Application : Turbine blade, tableware, knives
STS 410
Characteristics: This is 13Cr steel with heat treatment effect, which is used for mechanical structures that require heat resistance and corrosion resistance because it has excellent toughness, and is magnetic in any condition.
Application : Blades, mechanical components
STS 410S
Characteristics: For general mechanical structures that require heat resistance and corrosion resistance. It has excellent toughness.
Application : Blades, Tableware, Petroleum Industry

| Chemical composition

Stainless steel types		Chemical composition (%)
Stainless steel types		C	Si	Mn	P	S	Ni	Cr	Mo	and others
Austenitic	STS 304	below 0.08	below 1.00	below 2.00	below 0.045	below 0.030	8.00 ~10.50	18.00 ~20.00
	STS 304L	below 0.030	below 1.00	below 2.00	below 0.045	below 0.030	9.00 ~13.00	18.00 ~20.00
	STS 309S	below 0.08	below 1.0	below 2.00	below 0.045	below 0.030	12.00 ~15.00	22.00 ~24.00
	STS 310S	below 0.08	below 1.50	below 2.00	below 0.045	below 0.030	19.00 ~22.00	24.00 ~26.00
	STS 316	below 0.08	below 1.00	below 2.00	below 0.045	below 0.030	10.00 ~14.00	16.00 ~18.00	2.00 ~3.00
	STS 316L	below 0.030	below 1.00	below 2.00	below 0.045	below 0.030	12.00 ~15.00	16.00 ~18.00	2.00 ~3.00
	STS 321	below 0.08	below 1.00	below 2.00	below 0.045	below 0.030	9.00 ~13.00	17.00 ~19.00		above Ti5×C%
	STS 347	below 0.08	below 1.00	below 2.00	below 0.045	below 0.030	9.00 ~13.00	17.00 ~19.00		above Nb10×C%
Ferritic	STS 430	below 0.12	below 0.75	below 1.00	below 0.040	below 0.030		16.00 ~18.00
Ferritic	STS 434	below 0.12	below 1.00	below 1.00	below 0.040	below 0.030		16.00 ~18.00	0.75 ~1.25
Martensitic	STS 403	below 0.15	below 0.50	below 1.00	below 0.040	below 0.030		11.50 ~13.50
	STS 410	below 0.15	below 1.00	below 1.00	below 0.040	below 0.030		11.50 ~13.50
	STS 410S	below 0.08	below 1.00	below 1.00	below 0.040	below 0.030		11.50 ~13.50

| Mechanical property

Stainless steel types		Yield strength N/㎟	Tensile strength N/㎟	Elongation percentage %	Hardness
Stainless steel types		Yield strength N/㎟	Tensile strength N/㎟	Elongation percentage %	HB	HRB	HV
Austenite	STS 304	205	520	40	187	90	200
	STS 304L	175	480	40	187	90	200
	STS 309S	above 205	above 520	above 40	below 187	below 90	below 200
	STS 310S	above 205	above 520	above 40	below 187	below 90	below 200
	STS 316	above 205	above 520	above 40	below 187	below 90	below 200
	STS 316L	above 175	above 480	above 40	below 187	below 90	below 200
	STS 321	above 205	above 520	above 40	below 187	below 90	below 200
	STS 347	above 205	above 520	above 40	below 187	below 90	below 200
Ferritic	STS 430	above 205	above 450	above 22	below 183	below 88	below 200
Ferritic	STS 434	above 205	above 450	above 22	below 183	below 88	below 200
Martensitic	STS 403	above 205	above 440	above 20	below 201	below 93	below 210
	STS 410	above 205	above 440	above 20	below 201	below 93	below 210
	STS 410S	above 205	above 410	above 20	below 183	below 88	below 200