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441 STAINLESS STEEL TUBE

441 stainless steel tube

441 stainless steel tube, with 17.5-18.5% chromium and added niobium and titanium, offers excellent durability and superior corrosion resistance. These additives enhance weldability, formability, and greatly increase its defense against intergranular corrosion after welding. It's ideal for various uses including automotive parts, construction, and household and kitchen appliances due to its deep drawing capacity and structural stability in intricate fabrications. Moreover, 441's high thermal conductivity and low expansion coefficient ensure consistent performance across temperature variations. Its capacity for a high-luster finish also adds aesthetic appeal, making it suitable for both practical industrial purposes and visible applications.

Standards and Specifications

STANDARDS
OD
WT
STANDARDS
OD
WT
mm
inch
mm
ga
ASTM A554
8-323
0.315"-12 3/4"
0.6-6.0
24ga-4ga
ASTM 249/269
15.88-203.2
0.6252"-8"
0.6-3.0
24ga-11ga
ASTM A270
15.88-203.2
0.6252"-8"
1.0-3.0
20ga-11ga
EN 10296-2
8-323
0.315"-12 3/4"
0.6-6.0
24ga-4ga
EN 10217-7
12-323
0.4724"-12 3/4"
0.6-6.0
24ga-4ga
EN 10357
13-204
0.5118"-8"
1.0-3.0
20ga-11ga

CHEMICAL COMPOSITION &
MECHANICAL PROPERTIES

CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES

Typical Chemical Composition % (max values, unless noted)
Grade
C
Mn
P
S
Si
Ni
Cr
Mo
441
0.03
1.0
0.04
0.015
1.00
0.6 max
17.5-18.5
Typical Mechanical Properties
Grade
Tensile Strength
Yield Strength
Elongation in 2 in. or (50mm)
Brinell Hardness
Rockwell Hardness
min
min
min
max
max
ksi
Mpa
ksi
Mpa
%
441
60
414
35
241
20
190
90

Area we serve

HOUSEHOLD APPLIANCES
441 stainless steel tube, distinguished by its ferritic structure and enhanced with niobium and titanium stabilization, exhibits exceptional strength alongside superior oxidation and corrosion resistance. These attributes render it eminently suitable for a wide array of applications within the household appliances. Prominent applications of 441 in this domain include: Oven and range components, where its high-temperature tolerance ensures durability and thermal stability. Microwave oven linings, thanks to its resistance to heat-induced corrosion, preserving food safety and appliance longevity. Dishwasher frames and panels, which benefit from its resistance to harsh detergents, resulting in long-lasting and visually appealing designs. Refrigerator panels, where the alloy's aesthetic and its ability to withstand kitchen moisture make it a popular choice for modern kitchen appliances.
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KITCHEN EQUIPMENT
The 441 stainless steel tube, known for its durability, high-temperature, and corrosion resistance, is widely used in kitchen equipment like: Exhaust Hoods: Essential for withstanding the heat and fumes from cooking, ensuring effective operation in commercial kitchens. Commercial Ovens and Ranges: Its thermal tolerance and durability are critical for these appliances, maintaining performance under constant high heat in professional settings. Sinks and Worktables: The alloy's corrosion resistance is key to enduring daily contact with water, cleaners, and acidic foods, maintaining hygiene and aesthetics in kitchens. Trolleys and Shelving Units: Chosen for its strength and appearance, 441 withstands temperature changes, heavy loads, and sanitation needs, without sacrificing longevity or looks.
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FURNITURE
441 stainless steel tube is employed in the furniture industry, leveraging its superior mechanical properties and corrosion resistance to enhance both the durability and aesthetic appeal of furniture pieces. As a ferritic stainless steel, it demonstrates excellent resistance to oxidation, making it well-suited for both indoor and outdoor applications. The versatility of 441 stainless steel extends to its finishability, offering a range of surface finishes from matte to high gloss, aligning with contemporary design aesthetics. Furthermore, its commendable weldability facilitates the fabrication of intricate and complex designs, broadening its applicability in the creation of structural components such as frames and legs for tables and chairs.
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CONSTRUCTION MATERIAL
The 441 stainless steel tube is prized in the construction industry for its strength, resistance to oxidation and corrosion, and high-temperature stability, making it suitable for various uses: It's often used in structural supports and frameworks due to its durability and corrosion resistance, which are crucial for long-term structural integrity. Architects prefer it for façades and cladding on modern buildings for its sleek look and environmental stress resilience, maintaining the building's aesthetic over time. For roofing and drainage, its corrosion resistance ensures longevity and low maintenance, aligning with sustainable construction. In bridge construction, its excellent strength-to-weight ratio and corrosion resistance make it a valuable choice for structural reinforcement, contributing to the safety and cost-effectiveness of bridge projects.
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ARCHITECTURAL DECORATION
The 441 stainless steel tube combines aesthetic appeal with functional strength, making it a top choice for various decorative applications in architecture: It brings a contemporary edge to architectural accents and trim, adding sophistication and enhancing the design narrative. Favoured for handrails and balustrades, its durability and corrosion resistance ensure longevity, matched with a sleek look suitable for modern design. Architects select it for exterior facade panels and cladding systems due to its modern appearance and ability to resist harsh weather, contributing to sustainable building design. It's also versatile for artistic sculptures and decorative installations, where its structural integrity and resistance to corrosion offer lasting visual impact in both public and private spaces.
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AUTOMOTIVE INDUSTRY
In the automotive sector, 441 stainless steel tube is harnessed for its exceptional high-temperature resilience and superior corrosion resistance properties. This alloy is a quintessential component in the following several key applications: Exhaust Systems: Ideal for making essential exhaust components like mufflers and pipes due to its resistance to thermal degradation and corrosion, ensuring long-lasting performance against exhaust fumes. Powertrain Components: Used for engine parts requiring thermal resilience and strength, such as exhaust manifolds, to withstand high temperatures in engine compartments. Structural Framework: Its mechanical strength and corrosion resistance are leveraged in structural applications to improve vehicle safety and longevity. Fuel System Elements: Suitable for parts exposed to biofuels or corrosive substances, offering robust corrosion resistance in harsh environments.
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441 stainless steel tube FAQ

Both 441 and 439 stainless steel tubes are similar in composition, but 441 edges out 439 in weldability due to its higher niobium and titanium levels. This composition improves grain refinement and reduces intergranular corrosion and embrittlement, making 441 more suitable for critical welding tasks in exhaust systems and architectural details. For formability, 441 also has the advantage, with its niobium content lowering the risk of stress corrosion cracking and distortions, making it better for complex shapes in automotive components, kitchenware, and decorative trims. Although 441 is generally more expensive than 439, it remains competitive, especially in markets demanding automotive exhaust parts. The choice between 441 and 439 depends mainly on the specific needs of the application and budget constraints.
Like other 400 grade stainless steel, 441 is magnetic because of its iron content. In practical terms, the difference in magnetism between 441 and 439 stainless steel tube is minimal and would not significantly impact most applications where magnetic properties are a consideration.
441 stainless steel tube has a lower coefficient of thermal expansion compared to austenitic stainless steel tubes, which can be beneficial in applications where dimensional stability at elevated temperatures is important.
It is EN 1.4509.
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