What is 1.4713 Stainless Steel?

1.4713 stainless steel, commonly known as X10CrAlSi13 or UNS S13300, is a ferritic heat-resistant stainless steel with excellent oxidation resistance at elevated temperatures due to its chromium and aluminum content. The addition of aluminum promotes the formation of a highly stable, adherent aluminum oxide scale that provides superior protection against scaling and oxidation in high-temperature environments. This makes it an ideal material for applications requiring good high-temperature performance without the need for high nickel content, such as furnace components, heat treatment equipment, and automotive exhaust systems.

 

This heat-resistant ferritic grade is standardized under key international systems.

Standard	Equivalent Grade
EN (Europe)	1.4713
ASTM/AISI (USA)	X10CrAlSi13, UNS S13300
Common Name	Chromium-aluminum steel

Its composition includes chromium and aluminum for high-temperature oxidation resistance.

Element	C	Si	Mn	P	S	Cr	Al
Content (%)	≤ 0.12	0.70 - 1.40	≤ 1.0	≤ 0.04	≤ 0.03	12.0 - 14.0	0.70 - 1.20

It offers good high-temperature strength and excellent oxidation resistance.

Property	Yield Strength (Rp0.2)	Tensile Strength (Rm)	Elongation (A)	Hardness (HB)
Typical Value (Room Temp)	≥ 250 MPa	450 - 600 MPa	≥ 20%	≤ 200
Typical Value (800°C)	~ 30 MPa	~ 40 MPa	~ 40%	-

 

Key Characteristics and Applications of 1.4713 / X10CrAlSi13

Excellent High-Temperature Oxidation Resistance: The aluminum content (0.70-1.20%) promotes the formation of a stable aluminum oxide scale that provides superior resistance to scaling and oxidation up to approximately 900°C (1650°F).

Good Thermal Fatigue Resistance: The ferritic structure provides good resistance to thermal cycling, making it suitable for applications with repeated heating and cooling.

Low Cost: Absence of nickel and low alloy content makes it significantly more economical than austenitic heat-resistant grades.

Magnetic and Weldable with Care: Strongly magnetic and can be welded with proper procedures, though preheating may be required.

 

Primary Applications:

Furnace Components: Heating elements, furnace linings, burner parts, and support grids.

Heat Treatment Equipment: Retorts, muffles, and baskets for heat treating operations.

Automotive Exhaust: Catalytic converter supports, exhaust manifolds, and heat shields.

Household Appliances: Burner components in gas stoves, heater parts, and fireplace inserts.

Industrial Heating: Radiant tubes and heating element sheaths.

Petrochemical: Components in moderate-temperature process equipment.

 

How does 1.4713 compare to 1.4762 (446) and 1.4742 (X10CrAlSi18)?
1.4713 has lower chromium content (12-14%) compared to 1.4762 (446) which has 23-27% Cr, and 1.4742 (X10CrAlSi18) which has 17-19% Cr. This results in lower maximum service temperature: 1.4713 is suitable up to ~900°C, while 1.4762 can be used up to ~1100°C. The aluminum content provides additional oxidation resistance across all three grades. 1.4713 is more economical due to lower chromium content and is often chosen for applications with moderate temperature requirements (up to 900°C). For higher temperature applications (above 900°C), 1.4762 or 1.4742 with higher chromium content are recommended.

 

What are the welding considerations for 1.4713?
Welding 1.4713 requires care due to its ferritic structure and aluminum content. Key considerations include:

Low heat input welding techniques are essential to minimize grain growth in the heat-affected zone

Preheating (200-300°C) is recommended for thicker sections

Austenitic filler metals (309L, 310L) are recommended for better weld ductility

Post-weld annealing at 750-800°C may be required to restore ductility for critical applications

The aluminum content can affect weld pool fluidity and may require special techniques

Resistance welding is often preferred for thin gauge applications

For critical applications, welding should be performed with qualified procedures

 

What temperature range is 1.4713 suitable for?
1.4713 is suitable for continuous service up to approximately 900°C (1650°F) and intermittent service up to 950°C (1740°F). It maintains good oxidation resistance within this range, making it suitable for furnace components, heat treating equipment, and exhaust systems. For applications requiring higher temperature capability (above 900°C), grades with higher chromium content such as 1.4762 (446) or austenitic grades like 309/310 are recommended. The aluminum content provides excellent protection against scaling at elevated temperatures, but the material has limited creep strength above 800°C.

 

Looking for a Reliable Supplier of 1.4713 Stainless Steel?
GNEE Steel supplies cost-effective 1.4713 (X10CrAlSi13) stainless steel in plate, sheet, bar, and strip forms for moderate-temperature heat-resistant applications. We provide full material certification (EN 10204 3.1) and processing support including cutting, forming, and welding services. If you have any requirements, please feel free to contact us.