Hemi Metals, a top-notch manufacturer and supplier located in Hamilton, New Zealand, specializes in high-quality Stainless Steel 420 Hollow Bars that are perfect for tough industrial and engineering tasks. With a reputation for precision manufacturing and a strong commitment to international standards, Hemi Metals guarantees that each hollow bar offers outstanding strength, reliability, and precise dimensions. These Stainless Steel 420 Hollow Bars are highly valued for their hardness, wear resistance, and impressive performance in demanding environments. Thanks to their advanced production capabilities and dedication to customer satisfaction, Hemi Metals consistently delivers high-performance stainless steel solutions tailored to meet the needs of industries both in New Zealand and beyond.
Stainless Steel 420 Hollow Bars from Hemi Metals are crafted from a martensitic stainless steel blend that boasts a high chromium content, usually around 12–14%, along with a carefully controlled carbon level to enhance hardness. This grade is known for its robust mechanical properties, including high tensile and yield strength, excellent wear resistance, and impressive hardness after heat treatment. Its mechanical reliability ensures consistent performance even under high stress, friction, and moderate corrosion conditions. These characteristics make SS 420 Hollow Bars an excellent choice for applications that demand strength, toughness, and a long service life in both industrial and engineering settings.
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 420 | 0.15 | 14.0 | 1.00 | – | 0.04 | 0.03 | 1.00 |
| Element | Tensile Strength | Yield Strength | Elongation | Hardness |
| SS 420 | 95,000 | 50,000 | 25 | 175 |
| 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 420 hollow bars' excellent wear resistance enhances their performance by ensuring durability in high-friction environments. This property makes them ideal for cutting tools, medical instruments, and mechanical components, reducing maintenance needs and extending service life in demanding applications.
SS 420 hollow bars offer moderate high-temperature resistance but are generally not ideal for prolonged exposure to extreme heat. Their performance is best in applications requiring hardness and corrosion resistance under controlled or moderately elevated temperature conditions.
Hemi Metals’ Stainless Steel 420 Hollow Bars find extensive use in industries that need components capable of withstanding abrasion, impact, and mechanical stress. They are commonly used in the production of pump shafts, valve components, surgical instruments, fasteners, motor shafts, and precision-machined parts. Their hardness and wear resistance also make them ideal for tooling applications, including shear blades, mixers, and cutting tools.
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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