201 Acero inoxidable 1.4372 (UNS S20100)

What is stainless steel 201 (UNS S20100)1.4372?

201 acero inoxidable, with certain acid and alkali resistance, high density, no bubbles, no pinholes, etc. It is a high-quality material for producing various case and strap bottom cover. Mainly used for decorative tubes, industrial tubes, some shallow stretched products.

Tipo 201 is normally limited to nearly flat or shallow drawn products such as automotive trim, builder’s hardware comprised of window and door components, flatware, rapid transit cars and trailers.

201 acero inoxidable 1.4372 Finished Products Form

• Sheet
• Strip
• coils
• foils

Applications for 201 acero inoxidable

Typical applications for Types 201 contains cookware, hose clamps, piston rings, transit car structural member, transit car roofing/siding, thermal window spacers, airbag containers, and truck trailer posts and door frames.

Equivalents of grade 201

UE EN	USA –	Japan ÉL	France AFNOR
X12CrMnNiN17-7-5	201	SUS201	Z12CMN17-07Az

Composición ranges for 201 grade of stainless steel

ITEM	NI	CR	CU	MN	SI	C	norte	PAG	S
Min	0.80	14.00	1.30	8.00	===	===	===	===	===
máx.	1.30	17.00	2.00	10.00	1.00	0.15	0.25	0.06	0.03

Propiedades mecánicas 

Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA24

Property	201
Fuerza de producción, mín.. (ksi)	45
Resistencia a la tracción, mín.. (ksi)	95
Alargamiento, mín.. (%)	40
Hardness, máximo. (Rb)	100

Mechanical property requirements for cold worked flat rolled products as specified in ASTM A666

Condition	Fuerza de producción (ksi) mín..	Resistencia a la tracción (ksi) mín..	Alargamiento % mín.. en 2 en.
			<0.015 en.	≥0.015 in.
¼ Hard	75	125	25	25
½ Hard	110	150	15	18
¾ Hard	135	175	10	12
Full Hard	140	185	8	9

Propiedades físicas

Densidad, lb/in3	0.283
Modulus of Elasticity, psi	28.6 x 106
Coefficient of Thermal Expansion, 68-212˚F, /˚F	9.2 x 10-6
Conductividad térmica, Btu/ft hr ˚F	9.4
Calor específico, Btu/lb ˚F	0.12
Resistividad eléctrica, Microohm-in	27.0

Fabricación

Tipo 201 Stainless Steel can be fabricated by bench forming, roll forming and brake bending in much the same manner as Type 301. Sin embargo, because of its higher strength, it may exhibit greaterspringback. This material can be drawn similarly to Type 301 in most drawing operations if more power is used and the hold-down pressure is increased.

Corrosion Resistance

The general level of corrosion resistance of Type 201 is similar to Type 301. Type 201 should perform adequately as a replacement for Type 301, except in the most demanding environments. The scalng resistance of Type 201 is less than that of Type 301. Tipo 201 resists destructive scaling up to about 1550°F

(843°C), about 100°F (56°C) less than Type 301.

Hot Working

Calificación 201 stainless steel is hot worked at 1149-1232°C (2100-2250°F).

Annealing

Calificación 201 stainless steel is annealed at 1010-1093°C (1850-2000°F). Temperature should not be exceeded above 2000°F in order to avoid scaling. It is rapidly cooled to prevent crystallization of carbides.

Weldability

The austenitic class of stainless steels is generally considered to be weldable by the common fusion and resistance techniques. Special consideration is required to avoid weld “hot cracking” by assuring formation of ferrite in the weld deposit. As with other chrome-nickel austenitic stainless steel grades where carbon is not restricted to 0.03% or below, the weld heat affected zone may be sensitized and subject to intergranular corrosion in some environments.This particular alloy is generally considered to have poorer weldability to the most common alloy of this stainless class, Type 304L Stainless Steel. When a weld filler is needed, AWS E/ER 308 is most often specified. Tipo 201 Stainless Steel is well known in reference literature and more information can be obtained in this way.