X12CrMnNiN17-7-5 / 1.4372 Stainless Steel

What is X12CrMnNiN17-7-5 material?

X12CrMnNiN17-7-5 (EN 1.4372) is an austenitic stainless steel with high manganese (5.5–7.5%) and lower nickel (0.5–1.0%) content, often called AISI 201. It is known for high strength, excellent work hardening, good ductility, and affordability. It is widely used in household appliances, automotive components, and structural parts.

Grade	X12CrMnNiN 17-7-5
European Steel Grade	1.4372
Corresponding Standard	EN 10088-1-2005 Stainless Steels. Part 1:List of Stainless Steels
Classification	Austenitic Stainless Steel
Properties	Corrosion-Resistant
Density	7.8 g/cm3

 

What material is 1.4372 equivalent to?

1.4372 (X12CrMnNiN17-7-5) is primarily equivalent to AISI 201 (or S20100) stainless steel. It is a 200-series, low-nickel, austenitic chromium-manganese-nickel stainless steel often used as an economical alternative to 304, known for its high strength, good formability, and weldability.

JIS	ASTM	NF EN/NF	EN
SUS201	201	Z12CMN17-07Az	X12CrMnNiN17-7-5	1.4372

 

 

 

X12CrMnNiN 17-7-5 Chemical Composition (%)

Element	C	Si	Mn	P	S	Cr	Ni	N
min	-	-	5.5	-	-	16	3.5	0.05
max	0.15	1	7.5	0.045	0.015	18	5.5	0.25

 

X12CrMnNiN 17-7-5 Physical Properties

Elastic Modulus at Various Temperatures (°C)						Coefficient of Thermal Expansion Between 20°C and Various Temperatures					Thermal conductivity	Specific Heat Capacity	Resistivity	magnetic
20	100	200	300	400	500	100°C	200°C	300°C	400°C	500°C	20°C	20°C	20°C
GPa						10-6K-1					W/m.K	J/kg.K	Ω.mm2/m
200	194	186	179	172	165	-	-	-	-	-	15	-	0.7	no*

*-Small amounts of ferrite and/or martensite caused by cold deformation will increase the magnetizability.

 

1.4372 Stainless Steel: Applications

include the automotive industry, solar energy systems, metal products, home appliances, precision electronics, mechanical manufacturing, elevators, sanitary ware, pressure vessels, nuclear power, catering equipment and kitchenware, chemical equipment, consumer electronics, food processing machinery, structural tubing, and railway rolling stock.

 

1.4372 Stainless Steel: High-Temperature Resistance

This material exhibits excellent oxidation resistance and processing characteristics, making it suitable for use in high-temperature oxidizing environments such as in thermocouple protection tubes. At 800°C, it retains sufficient long-term strength, along with good resistance to thermal fatigue and carburization. It is also easily weldable and amenable to cold stamping and forming.

 

1.4372 Stainless Steel: Processability

This alloy possesses excellent plasticity during hot working processes and exhibits good deformation characteristics. The recommended heating temperature for forging is 1170°C, with a finishing forging temperature of 900°C.
The material becomes magnetic following cold working. It is a single-phase austenitic, solid-solution-strengthened alloy that demonstrates moderate thermal strength and good thermal fatigue resistance below 800°C, as well as good oxidation resistance below 1000°C.

 

1.4372 Stainless Steel: Weldability

1.4372 stainless steel can be welded using TIG (argon arc) welding, spot welding, or seam welding. It exhibits excellent weldability, with a low susceptibility to cracking during TIG welding.

 

1.4372 Stainless Steel: Heat Treatment Specifications

Solution Treatment: 1010–1120°C, followed by rapid cooling. After heat treatment, any oxide scale present on the surface of the components can be removed via sandblasting or acid pickling.

 

 

1.4372 Stainless Steel Supplier

Common supply forms include round bars, rods, strips, tubes, flanges, forgings, and other shapes.

Product Category	Specifications & Details
Hot-Rolled Plates / Coils	Thickness: 1.5 mm – 300 mmWidth: 1500 mm – 3200 mm
Cold-Rolled Plates / Coils / Strips	Thickness: 0.1 mm – 4.0 mm Common thicknesses: 0.5 mm, 0.8 mm, 1.0 mm, 2.0 mm Common widths: 1219 mm, 1250 mmSurface finishes: 2B, BA
Bars - Hot-Rolled Round Bars / Black Bars	Diameter: 6 mm – 400 mm
Bars - Cold-Drawn Bright Round Bars / Precision-Ground Bars	Diameter: 1.0 mm – 100 mm
Square Billets / Square Bars	Max. size: 300 mm × 400 mm
Welded Steel Tubes	Outer diameter: 10 mm – 1600 mm
Seamless Steel Tubes	Outer diameter: 6 mm – 508 mm

 

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