These Stainless Steel 440C Round Bars and Rods are primarily made up of high carbon (0.95–1.20%) and chromium (16–18%), along with trace amounts of manganese, silicon, and molybdenum. This martensitic stainless steel offers remarkable hardness, excellent wear resistance, and moderate corrosion resistance. In terms of mechanics, 440C Round Bars and Rods boast a tensile strength ranging from 760–1100 MPa, impressive yield strength, and exceptional dimensional stability after heat treatment, making them ideal for high-precision and high-stress applications that demand durability and a long service life.
High carbon martensitic stainless steel rounds/rods, known as Stainless Steel 440C has excellent Hardness, Wear and Corrosion resistance. The material 440C stainless steel, at an average carbon concentration of 0.95 % to 1.20, can be annealed and subjected for high hardness; hence it gets used in critical applications like rolling bearings, control valves, high speed cutting tool, etc. It contains about 16-18% chromium, which provides corrosion resistance, and 1-1.5% molybdenum, enhancing its resistance to pitting and crevice corrosion. It has excellent strength and toughness, which extends to very high temperatures; thus, this material can be used for aggressive applications in the aerospace, automotive, and industrial fields.
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 |
Type | SIZES (Inches) | ISO Tolerance | SIZES (mm) |
|---|---|---|---|
Peeled and Polished | 1.50″ to 6.00″ | h11-DIN 1013 | 40.00 to 150.00 |
Cold Drawn and Ground | 5/6″ to 2.50″ | h9-h8-h11-h10 | 10.00 to 75.00 |
Cold Drawn and Polish | 1/8″ to 3.00″ | h9-h8-h11-h10 | 3.00 to 75.00 |
Peeled and Ground | 3/4″ to 2.00″ | h10-h9-h11 | 20.00 to 50.00 |
Cut to size on request (tolerance +2/-0 mm). 440C Stainless Steel Bars Standard lengths of 2000 mm up to 6000 mm.
50.0 | 6.0 |
45.0 | 5.0 |
60.0 | 8.0 |
55.0 | 7.0 |
70.0 | 10.0 |
65.0 | 9.0 |
75.0 | 12.0 |
90.0 | 20.0 |
80.0 | 16.0 |
100.0 | 25.0 |
160.0 | 35.0 |
130.0 | 30.0 |
200.0 | 40.0 |
Yes, Stainless Steel 440C Round Bars/Rods can be used in cryogenic applications. Their high hardness and strength remain effective at low temperatures, making them suitable for use in cryogenic environments.
Yes, Stainless Steel 440C Round Bars/Rods require regular inspection to ensure their structural integrity, especially in high-stress applications, to detect any signs of wear, corrosion, or cracks over time.
Yes, Stainless Steel 431 Round Bars/Rods can be welded, although preheating and post-weld heat treatment are recommended to prevent cracking and maintain the material's mechanical properties.
You’ll find Stainless Steel 440C Round Bars and Rods widely used in the manufacturing of bearings, knife blades, valve components, pump shafts, and precision instruments. Their high hardness and wear resistance make them well-suited for tough, abrasive environments. These bars and rods are also utilized in aerospace, marine, and automotive sectors where corrosion resistance, durability, and precision are essential. With Phehlukwayo Metal’s Stainless Steel 440C Round Bars and Rods, you can count on reliable performance, lasting durability, and consistent quality, making them an excellent choice for critical industrial and engineering components.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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