A well-known producer and supplier in Kolkata, India, Neil Metals specialises in providing premium stainless steel 440C square bars and rods to businesses that require exceptional strength and resistance to wear. Neil Metals guarantees that its 440C square bars fulfil international standards for accuracy and performance through sophisticated processing methods and stringent quality control. These bars are extensively utilised in a variety of industries, such as engineering, toolmaking, and aerospace, in high-load, high-wear applications. Clients looking for dependable and reasonably priced stainless steel solutions throughout India and beyond have come to trust Neil Metals because of its strong inventory, prompt deliveries, and customer-focused service.
High-carbon martensitic stainless steel 440C is renowned for its remarkable wear resistance and hardness. It is composed of roughly 16–18% chromium, 0.95–1.20% carbon, and trace amounts of silicon, manganese, and molybdenum. After heat treatment, it yields a yield strength of about 450 MPa, a tensile strength of about 760–1030 MPa, and a hardness of up to 60 HRC. 440C is best when hardened, has a moderate resistance to corrosion, and maintains good strength at high temperatures. Despite being magnetic, its high hardness makes it challenging to form or weld.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Size : Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 440C | 1.20-0.95 | 18.00-16.00 | 1.00 | 1.00 | 0.04 | 0.03-0.15 | 1.00 |
| Element | Tensile Strength | Yield Strength | Elongation | Hardness |
| SS 440C | 1965 | 1896 | 2 | 57 |
| STANDARD | WERKSTOFF NR. | UNS | JIS |
| SS 440C | 1.4125 | S44004 | SUS 440C |
| SQUARES | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Precision tools, bearings, valve components, and surgical instruments that require high hardness and wear resistance frequently use stainless steel 440C square bars and rods. They are used in ball bearings, blade components, and fasteners in the defence and aerospace industries. They are used in shafts and gearbox components in the automotive industry. They are used in industrial machinery such as dies, punches, and cutting tools, where strength and dimensional stability are essential. Additionally, because it provides a dependable balance of corrosion resistance and cutting-edge retention under demanding conditions, 440C is preferred in the manufacturing of medical devices and knives.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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