Naing Steel stands as a trusted manufacturer and supplier in Naypyidaw, dedicated to providing the backbone for Myanmar’s growing infrastructure. We specialize in producing high-strength Alloy Steel Grade 10.9 Bolts, engineered to meet the most demanding projects with unwavering reliability. Our commitment lies in delivering not just a product, but a promise of safety and durability, ensuring that every bolt that leaves our facility is built to hold your most critical structures together with exceptional strength and integrity.
Crafted from a specific alloy composition that includes elements like boron and chromium, these bolts are heat-treated through a quenching and tempering process. This meticulous treatment is what gives Grade 10.9 bolts their outstanding mechanical properties. They achieve a minimum tensile strength of 1000 MPa and a yield strength of 900 MPa, offering a remarkable balance between high strength and good ductility. This ensures they can handle significant stress without becoming brittle.
| Grades | Grade 10.9 Bolt |
|---|---|
| Standard | ASTM A324, ASME SA324 |
| Size | Dia M 20 to 100 mm Inch 3/4“ to 3.1/2″ |
| finish | Zinc plated / Plain / Hot dip galvanised |
| Carbon Steel 10.9 | C | P | S | B |
|---|---|---|---|---|
| 0.20-0.55 | 0.025 | 0.025 | 0.003 |
| Grades | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
|---|---|---|---|---|---|
| Class 10.9 | 5–100 | 830 | 940 | 1040 | C33–39 |
| Class and Material | Nominal Size Range (mm) | Mechanical Properties | ||
|---|---|---|---|---|
| Proof Load (MPa) | Min. Yield Strength (MPa) | Min. Tensile Strength (MPa) | ||
| Class 10.9 Alloy steel, quenched and tempered | 5mm – 100mm | 830 | 940 | 1040 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
B6 Naing Steel is a trusted manufacturer and supplier of high-quality Alloy Steel Gr 10.9 Bolts in Naypyidaw, Myanmar. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel and Galvanized Steel, with a strong focus on Carbon Steel Sheet and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability and performance for critical industrial applications. Contact us today for all your Alloy Steel Gr 10.9 Bolts needs!
The exceptional strength of Grade 10.9 bolts makes them indispensable for heavy-duty applications where failure is not an option. You will find them securing critical connections in steel frameworks for commercial buildings and industrial plants, within heavy machinery, and in demanding automotive assemblies. They are the preferred choice for high-stress environments like bridge construction, mining equipment, and other structural applications where their reliability provides essential peace of mind, ensuring long-term safety and performance under substantial pressure.
Naing Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Naypyidaw, Myanmar.
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