Luke Steel produces and offers high–quality Alloy Steel Gr 10.9 Bolts sourced from Houston, USA. Gr 10.9 bolts are designed for applications demanding superior strength and mechanical performance. Quenched and tempered alloy steel is used in producing Gr 10.9 bolts, which best suit critical load-bearing joints in construction, automotive, and heavy machinery industries. At Luke Steel, we guarantee every bolt is up to international standards like ISO 898-1 and ASTM standards. With stringent quality checks, dimensional precision, and anti-corrosion protection, our Alloy Steel 10.9 bolts offer exceptional reliability and safety in high-stress industrial applications.
Alloy Steel Gr 10.9 Bolts are commonly made of medium carbon steel with manganese, chromium, and molybdenum additions. Once they have been quenching and tempered, they attain at least 1040 MPa tensile strength and 940 MPa yield strength. They possess good toughness, fatigue life, and excellent mechanical reliability. Gr 10.9 bolts are heat-treated for high hardness and are suitable for static and dynamic loading conditions. The composition of the alloy provides improved corrosion resistance and thread integrity under torque. Gr 10.9 bolts find extensive applications where structural integrity is a requirement.
| 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 Jaxon Steel is a trusted manufacturer and supplier of high-quality Alloy Steel Gr 10.9 Bolts in Houstan, USA. 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!
Alloy Steel Gr 10.9 Bolts are typically employed in steel structure construction, bridges, wind turbines, car assemblies, and heavy machinery production. Their tensile strength makes them suitable for bolt connections in heavy–duty applications like engines, suspension, and pressure vessels. Mining, railways, and offshore platforms are some of the other applications where vibration resistance is critical. Luke Steel Gr 10.9 bolts offer durable, safe fastening for mechanical joints that are subjected to frequent stress and impact. Their strength and toughness combination ensures reliable service in both static and fatigue conditions.
Luke 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 Houstan, USA.
Copyright 2025 Luke Steel. All rights reserved
