Stainless Steel Grade EN 1.4162 | S32101 (2101)

EN 1.4162 | X2CrMnNiN21-5-1 - duplex stainless steel, which demonstrates better corrosion resistance. It is characterized by high resistance to cracking, better fatigue resistance. Significantly smaller cross-sectional area is required in the production of products.

It has higher two-phase stability due to Mn. The working temperature is up to 600 ℃. It is well welded and processed.

Duplex stainless steel S32101 (2101) is extremely resistant to corrosion. It has high resistance to intercrystalline corrosion. Even in chloride and sulphide environments it demonstrates very high resistance to stress corrosion cracking.

Mechanical properties

Table: mechanical properties of stainless steel grade EN 1.4162 | S32101 (2101) | X2CrMnNiN21-5-1
Tensile strength, min., MPa	650
Yield strength, 0.2%, MPa	450
Relative elongation, min., %	30
Hardness, HB type	290

Heat resistance

The high chromium content of duplex stainless steels, which provides good corrosion protection, makes the steel brittle at temperatures above 300 °C. At low temperatures, duplex stainless steels have greater ductility than ferritic and martensitic grades. Duplex steel EN 1.4162 can be used at temperatures not lower than - 50 °C.

Heat treatment

Duplex stainless steel of this grade cannot be strengthened by heat treatment. However, it can be hardened. Use annealing during processing and harden by rapid cooling in solution after heating to about 1100 °C.

Weldability

The steel has good weldability. All standard welding processes can be used. It is not as easy to weld as austenitic grades, but the low thermal expansion of EN 1.4162 reduces deformation and residual stress after welding.

Physical properties

Table No. 1: Physical properties of stainless steel grade EN 1.4162 | S32101 (2101) | X2CrMnNiN21-5-1
Density g/cm³	7,7
*Specific heat capacity at +20°C, J/kgK**	500
*Thermal conductivity at +20°C, W/mK**	15
*Specific electrical resistance at +20°C, μOhmm**	0,75
Magnetic properties	magnetic

Table No. 2: Physical properties of stainless steel grade EN 1.4162 | S32101 (2101) | X2CrMnNiN21-5-1
Temperature	+20°С	+100°С	+200°C	+300°С
Modulus of elasticity, GPa	205	200	190	180
Coefficient of linear expansion, 10^-6/°C	13,0	13,0	14,0	14,5

Table: chemical composition of steel grade EN 1.4162 | S32101 (2101) | X2CrMnNiN21-5-1
Chemical composition of steel grade EN 1.4162 \| S32101 (2101) \| X2CrMnNiN21-5-1
C	Si	Mn	P	S	Cr	Ni	Mo	Cu	N	Fe
<0,04	<1,00	<4,0-6,0	<0,040	<0,015	21,0-22,0	1,35-1,9	0,10-0,80	0,10-0,80	0,20-0,25	Other

Application

Duplex stainless steel EN 1.4162 is widely used in shipbuilding, oil, petrochemical, chemical, nitrogen, aerospace, cryogenic, pulp and paper, power, mixer production, treatment facilities. It is used to manufacture screws, shafts, bushings and other parts. It is also used to manufacture pipelines, heat exchangers, heavy-duty tankers, pressure vessels and chemical tanks. Parts that work in contact with oils, fuel, structures and cargo tanks of tankers transporting chemicals.