Based in Kolkata, India, Neil Metals is a reputable brand in the stainless steel sector and a top producer and supplier of stainless steel 431 hollow bars. High-strength 431 hollow bars from Neil Metals, a company renowned for producing precisely engineered stainless steel products, are appropriate for demanding applications in a variety of industries. To satisfy particular customer needs, their products are available in a range of sizes and finishes and are produced with rigorous adherence to quality standards. Neil Metals has established itself as a go-to supplier for stainless steel solutions for customers in India and international markets by emphasising dependability, durability, and prompt delivery.
About 15–17% chromium, 1.25–2.5% nickel, and up to 0.20% carbon make up the martensitic stainless steel alloy known as Stainless Steel 431. This grade is renowned for its exceptional hardness following heat treatment, high tensile strength (up to 850 MPa), and good yield strength (minimum 500 MPa). Particularly in mildly corrosive and marine environments, it provides moderate corrosion resistance. 431 is perfect for critical components that need both mechanical strength and moderate corrosion resistance because of its good impact strength, toughness, and fatigue resistance.
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
Range : Range – 3.17mm to 350mm dia
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 431 | 0.20 | 17.00-15.00 | 1.00 | 2.50-1.25 | 0.040- | 0.030 | 1.00 |
| Element | Density | Electrical Resistivity | Modulus of Elasticity |
| SS 431 | 0.2800 lb/inch³ | 70° Ohms (circ mil./ft.) | 29.0 X 10^3 |
| Hollow Bar | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.49 | 1.60 |
| 18 | 0.62 | 2.02 |
| 20 | 0.76 | 2.49 |
| 22 | 0.92 | 3.02 |
| 25 | 1.19 | 3.90 |
| 28 | 1.49 | 4.89 |
| 28 | 1.49 | 4.89 |
| 30 | 1.71 | 5.61 |
| 32 | 1.95 | 6.38 |
| 36 | 2.46 | 8.08 |
| 38 | 2.74 | 9.00 |
| 40 | 3.04 | 9.97 |
| 45 | 3.85 | 12.62 |
| 50 | 4.75 | 12.62 |
| 56 | 8.96 | 19.55 |
| 60 | 6.84 | 22.44 |
| 65 | 8.03 | 26.34 |
| 70 | 9.31 | 30.54 |
| 75 | 10.69 | 35.06 |
| 80 | 12.16 | 39.89 |
| 90 | 15.39 | 50.49 |
| 100 | 19 | 62.34 |
SS 431 Hollow Bar is commonly used in industries such as aerospace, automotive, marine, and chemical processing. It is utilized for manufacturing components like shafts, valves, pumps, and fittings, where high strength, corrosion resistance, and durability are essential.
Common sizes for SS 431 Hollow Bar typically range from 25 mm to 500 mm in outer diameter, with wall thicknesses varying from 3 mm to 50 mm. Custom sizes may also be available depending on specific requirements or suppliers.
Because of their exceptional strength and resistance to corrosion, stainless steel 431 hollow bars are frequently found in chemical processing machinery, marine equipment, and aerospace components. They are utilised in the oil and gas and automotive industries for bolting applications, drive shafts, pump shafts and valve components that need to be resistant to impact and wear. 431 hollow bars are also used in industrial tools, hydraulic systems, and defence equipment where machinability and toughness are essential. They are appropriate for crucial engineering and structural applications due to their resistance to extreme stress and adverse conditions.
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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