Rupal Metals, located in Delhi, India, stands out as a reputable manufacturer and supplier of top-notch Stainless Steel 440C Round Bars and Rods. They serve a variety of industrial sectors with a focus on precision and reliability. Renowned for their exceptional surface finish, tight dimensional tolerances, and impressive mechanical strength, Rupal Metals provides 440C bars that are perfect for high-performance and wear-resistant applications. With a strong commitment to quality and customer satisfaction, the company follows strict production standards and offers tailored solutions that meet both domestic and international requirements, making them a trusted partner for industries in need of durable and high-hardness stainless steel components.
Stainless Steel 440C Round Bars and Rods contain about 16–18% chromium, 1.0–1.2% carbon, along with small amounts of manganese, silicon, and molybdenum. This high-carbon martensitic stainless steel is heat-treatable, achieving remarkable hardness and wear resistance. The material boasts a tensile strength of around 760–800 MPa, a yield strength of about 450 MPa, and hardness levels reaching up to 58–60 HRC. While it may not be as corrosion-resistant as austenitic grades, it still offers good strength and dimensional stability under high-stress and high-friction conditions, making it an excellent choice for critical mechanical applications.
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.
Stainless Steel 440C Round Bars and Rods find extensive use in industries that demand components with high wear resistance, hardness, and moderate corrosion resistance. Typical applications include bearings, cutting tools, surgical instruments, valve parts, gauges, dies, and premium knives. In sectors like aerospace, marine, and automotive, these rods are utilized for precision shafts, gears, and hydraulic components. They are also well-suited for molds and industrial machinery that undergo repeated friction and stress. 440C bars strike a perfect balance of strength, durability, and performance in challenging mechanical and thermal environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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