We take pride in being a reliable manufacturer and supplier of Stainless Steel 420 Round Bars and Rods, celebrated for their exceptional hardness, strength, and resistance to corrosion. This high-carbon martensitic grade can be hardened through heat treatment, making it perfect for tough applications. Our 420 round bars and rods are crafted with precise dimensions, smooth surfaces, and consistent metallurgical quality to meet international standards. These products find their way into the production of cutlery, surgical tools, pump shafts, and mechanical components that demand excellent wear resistance, strength, and durability, making them a top choice for various industrial and engineering needs.
Stainless Steel 420 Round Bars and Rods generally consist of 12–14% chromium and 0.15–0.40% carbon, along with small amounts of manganese, silicon, phosphorus, and sulfur. This unique blend allows them to achieve high tensile strengths between 700–850 MPa (when hardened), a yield strength of around 450 MPa, an elongation of about 20%, and Brinell hardness reaching up to 500 HB. They offer good machinability in their annealed state and can be polished to a mirror-like finish when needed. Their mix of strength, hardness, and corrosion resistance makes them dependable for precision components and cutting tools across various industries.
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.
| Grade | C | Mn | Si | P | S | Cr | |
| 420 | min. | – | – | – | – | – | 12.0 |
| max. | 0.15 | 1.0 | 1.00 | 0.04 | 0.03 | 14.0 | |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Hardness |
| 420 | 95,000 | 25 | 50,000 | 175 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 420 | 1.4021 | S42000 | SUS 420 J1 | 420S29 | – | – | FeMi35Cr20Cu4Mo2 |
|
Type |
SIZES (mm) |
SIZES (Inches) |
ISO Tolerance |
|---|---|---|---|
|
Cold Drawn and Polish |
3.00 – 75.00 |
1/8″ – 3.00″ |
h8-h9-h10-h11 |
|
Cold Drawn and Ground |
10.00 – 75.00 |
5/6″ – 2.50″ |
h8-h9-h10-h11 |
|
Peeled and Polished |
40.00 – 150.00 |
1.50″ – 6.00″ |
h11, h11-DIN 1013 |
|
Peeled and Ground |
20.00 – 50.00 |
3/4″ – 2.00″ |
h9-h10-h11 |
|
5.0 |
45.0 |
|
6.0 |
50.0 |
|
7.0 |
55.0 |
|
8.0 |
60.0 |
|
9.0 |
65.0 |
|
10.0 |
70.0 |
|
12.0 |
75.0 |
|
16.0 |
80.0 |
|
20.0 |
90.0 |
|
25.0 |
100.0 |
|
30.0 |
130.0 |
|
35.0 |
160.0 |
|
40.0 |
200.0 |
SS DIN 1.4021 Round Bars/Rods are widely used in industries requiring high strength, hardness, and resistance to wear. They are widely used in the fabrication of parts like valves, shafts, springs, and fasteners where strength and resistance to corrosion are essential. SS 420 is used in the automotive, aerospace and engineering industries for precision parts like gears, bearings, and cutting tools. The medical field also uses SS 420 for surgical instruments due to its retention of sharpness and durability during sterilization processes. It is also used in food processing and chemical industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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