Hemi Metals, based in Hamilton, New Zealand, is a reliable manufacturer and supplier of Stainless Steel 420 Round Bars and Rods, designed for exceptional hardness, strength, and wear resistance. As a reputable producer of martensitic stainless steels, the company offers 420 Round Bars and Rods that boast precise dimensions, a superb surface finish, and consistent metallurgical quality. This grade is perfect for applications that demand strong mechanical performance and excellent edge retention. Hemi Metals caters to various industries, including tooling, automotive, mechanical engineering, and manufacturing, ensuring that every product meets international standards and performs reliably even in tough conditions.
Stainless Steel 420 Round Bars and Rods are composed of 12–14% chromium, minimal nickel, and a higher carbon content, which allows for impressive hardness and tensile strength after heat treatment. As a martensitic alloy, 420 offers strong wear resistance, good edge retention, and moderate corrosion resistance in controlled environments. It achieves excellent hardness when quenched and tempered, along with good fatigue strength and dimensional stability. While it may be less ductile than austenitic grades, it remains a dependable choice for components that need toughness and long-lasting performance. SS 420 is easy to machine in its annealed state and can be polished to a brilliant finish.
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 |
The pressure rating of Stainless Steel 420 Round Bars/Rods varies depending on factors like size, shape, and application. Generally, it's suitable for medium-pressure applications but is not recommended for high-pressure environments due to its hardness.
Yes, Stainless Steel 420 Round Bars/Rods can be recycled after use. As with most stainless steels, they retain their properties during recycling, making them a sustainable material option for reuse in manufacturing.
Yes, Stainless Steel 420 Round Bars/Rods require regular inspection, especially in critical applications. Routine checks ensure their integrity, detect wear or corrosion, and maintain performance in demanding environments.
Stainless Steel 420 Round Bars and Rods find their place in applications that require outstanding wear resistance, hardness, and durability. They’re commonly used for knife blades, cutting tools, industrial blades, surgical instruments, pump shafts, and valve components. In the automotive and mechanical engineering sectors, 420 is utilized for gears, cams, bushings, and precision-machined parts that face repetitive stress or friction. Its ability to achieve high hardness makes it an excellent choice for tooling, molds, fixtures, and heavy-duty machine components.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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