Kyaw Stainless, based in Naypyidaw, Myanmar, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel fasteners. They’re particularly known for their high-quality Stainless Steel 420 bolts, which are designed to offer a perfect blend of strength, precision, and resistance to corrosion. Thanks to their advanced manufacturing techniques and strict quality control measures, Kyaw Stainless guarantees that every bolt meets international standards, ensuring dependable performance across a variety of industries. With a strong commitment to excellence and timely delivery, they cater to both local and international markets, making them a go-to choice for clients in need of durable and efficient Stainless Steel 420 bolts in Naypyidaw and beyond.
The Stainless Steel 420 bolts from Kyaw Stainless are made from martensitic stainless steel, which contains about 0.15–0.40% carbon and 12–14% chromium. This unique composition gives the bolts impressive hardness, decent corrosion resistance, and high tensile strength after heat treatment. They also boast good wear resistance and mechanical durability, making them ideal for applications that demand both strength and precision. Kyaw Stainless puts each bolt through rigorous quality testing to ensure consistent performance, striking a balance between toughness and reliability for various industrial, mechanical, and structural applications.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 420 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 420 |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 420 |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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High-hardness, martensitic fasteners with moderate corrosion resistance. They are ideal for applications requiring strength and wear resistance, including machinery, automotive, and cutting tools.
Custom designed fastener with a square head, and provides superior strength and rigidity. Ideal for special applications requiring damage resistance and durability.
High-hardness fastener with a threaded shaft and flat, leg-like design. It provides strength, durability, and wear resistance for demanding industrial and mechanical applications.
Secures fixtures in concrete or masonry with high hardness and strength. It provides durability and wear resistance, making it suitable for high-stress and industrial applications.
Features a hexagonal head with an integrated flange, ensuring secure fastening and load distribution. It offers high hardness and durability for demanding applications.
A completely threaded shaft, offering consistent grip and engagement. They provide high strength and durability, suitable for demanding applications in industrial and mechanical settings.
These bolts are extensively used in auto, aircraft, construction, and marine applications because they are highly strong and resistant to corrosion. They are most suitable for valve parts, pump shafts, turbine blades, and other stress–bearing fasteners. They are also employed in medical devices, food processing machinery, and chemical processing facilities where reliability and resistance to oxidation are critical. Their tolerance for high temperature and harsh environments makes them a good fit for boilers, heat exchangers, and industrial equipment, promising long-term reliability and efficiency.
These Stainless Steel 420 bolts are popular in industries that require both hardness and corrosion resistance, such as automotive, machinery, and marine equipment. Their durability makes them perfect for use in cutlery, bearings, fasteners, and precision instruments. Additionally, they find applications in construction, infrastructure, and chemical industries where resistance to wear and environmental factors is crucial. With Kyaw Stainless’s 420 bolts, you can expect long-lasting performance in both high-load and specialized applications, providing versatility and dependable functionality across a range of industrial, mechanical, and engineering projects.







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