Stainless Steel Grade AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16

AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16 is a high temperature, heat-resistant austenitic stainless steel alloy. It is specially designed for extreme performance at high temperature and aggressive environments. It provides excellent resistance to oxidation and carburization at high temperatures, making it suitable for use in a variety of applications.

This grade of stainless steel is used to manufacture furnace components, heat treatment equipment and industrial heating systems.

The alloy's unique combination of properties, including high-temperature strength, thermal cycling resistance, and good corrosion resistance, make it well suited for extreme temperature and corrosive environments. Its versatility and reliability in high-temperature applications have earned it a place in industries where consistent performance at elevated temperatures is critical.

This alloy has been developed for use in high temperature industrial environments where good resistance to the combined effects of carbon and thermal cycling is required. Heat exchangers, furnace parts, muffles and retorts, annealing lids, food equipment, cryogenic structures.

AISI 330 has high strength and resistance to carburization and oxidation at a temperature of 1200 °C.

EN 1.4864 is a high-quality stainless steel which, due to its properties, is widely used in various industries. The steel is ideal for demanding structures and components operating at high temperatures and high pressures. This steel is in great demand in the chemical and petrochemical industries. It is used in ore processing and power generation.

AISI 330 is a fairly expensive material, so its use is justified only in cases where its unique properties are required.

Advantages

- high yield strength;
- high strength;
- easy processing;
- good forging properties;
- good welding properties;
- high oxidation resistance;
- high corrosion resistance;
- good properties at high temperatures.

- high mechanical properties;
- low expansion coefficient;
- good thermal conductivity;
- good processability;
- cost-effectiveness;
- resistance to high temperature operation;
- relatively low cost.

Mechanical properties

Table: mechanical properties of stainless steel grade AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16
Tensile strength, min., MPa	550-750
Yield strength, 0.2%, MPa	230-270
Relative elongation, min., %	30
Hardness, HB type	223
Modulus of elasticity kN/mm²	197

Physical properties

Table No. 1: physical properties of stainless steel grade AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16
Density g/cm³	8,0
*Specific heat capacity at +20°C, J/kgK**	550
*Thermal conductivity at +20°C, W/mK**	12,5
*Specific electrical resistance at +20°C, μOhmm**	1,0
Magnetic properties	non-magnetic

Table No. 2: physical properties of stainless steel grade AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16
Temperature	+20°С	+200°С	+400°C	+600°С	+800°С	+1000°С
Coefficient of linear expansion, 10^-6/°C	15,0	15,0	16,0	17,0	17,5	18,5

Table: chemical composition of steel grade AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16
Chemical composition of steel grade AISI 330 \| EN 1.4864 \| DIN X12NiCrSi35-16
C	Si	Mn	P	S	Cr	Ni	N	Fe
0,15	1,0-2,0	<2,0	<0,045	<0,015	15,0-17,0	33,0-37,0	<0,10	Other

Why choose heat resistant steel AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16 ?

1) High temperature stability:
Heat-resistant steel maintains high strength and hardness at high temperatures, and does not exhibit obvious softening or deformation.

2)Antioxidant properties:
Heat-resistant steel surface to form a dense layer of oxide film, can effectively prevent oxidation reaction, slow down the oxidation rate of the material.

3) Creep resistance:
Heat-resistant steel can resist plastic deformation and creep phenomenon at high temperature to maintain good shape stability and dimensional accuracy.

4) Good processing performance:
Heat-resistant steel AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16 has good ductility and weldability and can be convenient for hot processing.

Application of heat-resistant steel AISI 330 EN 1.4864 | DIN X12NiCrSi35-16

Heat-resistant steel is widely used in aerospace, power generation, chemical industry and other industries, mainly including the following aspects:
1. Aerospace:
It is used for the production of turbine blades for aircraft engines, turbine disks, combustion chambers and other components, as well as insulating materials for aerospace vehicles.
2. Energy:
It is used in the production of supercritical thermal power plant boilers and heating surfaces, nuclear power plant pressure vessels and fuel components.
3. Chemical industry:
It is used in the production of chemical equipment reactors, separators, oil cracking pipelines, etc., which can withstand high temperature, high pressure and corrosive environments.
4. Other:
Heat-resistant steel AISI 330 | EN 1.4864 | DIN X12NiCrSi35-16 is widely used in metallurgy, mechanical engineering, automotive industry and other industries, used in the production of various parts and tools in high-temperature working environments.