441 Stainless Steel Coil

441 stainless steel is a ferritic stainless steel that offers good high-temperature strength and excellent corrosion resistance, particularly in oxidizing environments. It is known for its improved weldability and formability compared to other ferritic grades.441 stainless steel coils offer a combination of good high-temperature strength, corrosion resistance, and formability, making them suitable for a wide range of applications in automotive, industrial, and construction industries.

 

 

C	Mn	P	S	Si	Cr	Ni	Nb	N	Ti
≤0.03	≤1.00	≤0.04	≤0.03	<1.0	17.5 – 19.5	≤1.00	0.3 + (9 x C) min 0.90 max	≤0.03

 

Yield Strength(MPa)	Tensile Strength(MPa)	Elongation(％)	Hardness(Hv)	Density
≥250	≥560	≥18	≥56	7.7 g/cm³

 

 

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 441	1.4509	S44100	SUS 441	X2CrTiNb18

 

Thickness	0.1mm to 12 mm Thk
Width	1000 mm / 1219mm /1250 mm / 1500 mm / 2000 mm
Length	2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER'S REQUIREMENT
Type of Material	STAINLESS STEEL SOFT, DEEP DRAW, EXTRA DEEP DRAW, QUARTER HARD, HALF HARD, FULL HARD.
Form	Coil / Strip
Test Certificate	Yes.
Finish	2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA.
Standard	ASTM / ASME A240 / SA240

 

 

 

Forming:

Cold Working: Perform cold working operations such as bending, drawing, and stamping with consideration for the material's work hardening properties. Intermediate annealing may be necessary for extensive deformation.

Hot Working: Hot working is generally performed at temperatures between 750-1100°C (1382-2012°F). It's crucial to avoid overheating and to control the cooling rate to prevent the formation of unwanted phases.

Welding:

Pre-Weld Preparation: Clean the surfaces to be welded to remove any contaminants that could affect weld quality.

Welding Parameters: Use appropriate welding parameters to control heat input and avoid excessive grain growth. Consider using filler materials compatible with ferritic stainless steels.

Post-Weld Treatment: Although not always necessary, post-weld annealing can improve the ductility and corrosion resistance of the weld area. Slow cooling from the welding temperature is recommended to avoid the formation of undesirable phases.

Machining:

Tool Selection: Use carbide tools for better performance and longer tool life. High-speed steel (HSS) tools can also be used but may wear out faster.

Cutting Speeds and Feeds: Adjust cutting speeds and feeds to optimize machining efficiency and surface finish while minimizing tool wear. Adequate cooling is essential to prevent overheating and work hardening.

Lubrication: Use appropriate cutting fluids and lubrication to improve tool life, surface finish, and chip removal.

 

 

441 stainless steel coils provide a balanced combination of good high-temperature strength, corrosion resistance, and formability, making them suitable for a wide range of applications in automotive, industrial, and construction industries. Understanding its properties, fabrication techniques, and supplier options can help you make informed decisions to meet your specific needs.

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