Louis Metals offers precision-crafted Stainless Steel 440C Rectangular Bars from its Houston, USA facility. These bars provide high hardness, wear resistance, and strength. Stainless Steel 440C (UNS S44004) is a high-carbon martensitic stainless steel known for its impressive mechanical properties and moderate corrosion resistance when hardened. 440C rectangular bars are perfect for tooling, bearing surfaces, and mechanical parts that need to handle high loads and last a long time. Manufactured to ASTM A276 and A484 standards, our 440C bars come in various sizes, heat-treated or annealed as needed. Louis Metals serves aerospace, defense, tooling, and mechanical engineering with high-performance 440C solutions.
440C contains 16–18% chromium and 0.95–1.20% carbon, with traces of molybdenum and manganese. It offers very high hardness (about 58–60 HRC after heat treatment) and tensile strength up to 760 MPa (annealed) or over 2000 MPa when hardened. While it has moderate corrosion resistance, it excels in wear resistance and edge retention. It is magnetic and heat-treatable, making it ideal for high-load or high-friction uses. Louis Metals provides 440C rectangular bars with excellent surface finish and uniform mechanical performance for machining, polishing, or surface treatment.
Stainless Steel Round Bar Specification : ASTM A276 / A479, ASME SA276 / A479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
|
SS 440C |
Min |
Max |
|---|---|---|
|
Si |
– |
1.00 |
|
C |
0.95 |
1.20 |
|
Mo |
0.00 |
0.75 |
|
P |
– |
0.04 |
|
Ni |
– |
1.00 |
|
Mn |
– |
1.00 |
|
Cr |
16.00 |
18.00 |
|
S |
0.15 |
0.03 |
|
Element |
SS 440C |
|---|---|
|
Tensile (UTS)N/mm² |
1965 |
|
Temp°C |
20 |
|
Reductionof Area |
10 |
|
Elongation(50.8mm) %) |
2 |
|
0.2% YieldN/mm² |
1896 |
|
HardnessHRc |
57 |
|
STANDARD |
UNS |
WERKSTOFF NR. |
JIS |
|---|---|---|---|
|
SS 440C |
S44004 |
1.4125 |
SUS 440C |
Yes, Stainless Steel 440C Rectangular Bars should undergo regular inspection to ensure their integrity, performance, and resistance to wear and corrosion.
Considerations for selecting Stainless Steel 440C Rectangular Bars include their hardness, corrosion resistance, tensile strength, application requirements, and environmental conditions.
Yes, Stainless Steel 440C Rectangular Bars can be recycled, as stainless steel is highly recyclable without losing its properties.
Stainless Steel 440C Rectangular Bars are perfect for making dies, molds, blade backs, wear strips, valve seats, and linear guides in precision tooling. Their outstanding hardness and wear resistance make them a go-to material for cutting tools, pump shafts, and bearing components. The aerospace and defense industries use 440C for actuation systems and control surfaces where durability is vital. In manufacturing, it’s utilized for jigs, fixtures, and machine tools. Louis Metals offers 440C rectangular bars in hardened, annealed, or custom-machined formats, helping clients achieve optimal tool performance and life in high-friction, high-strength applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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