Thabiso Steel is a reputable manufacturer and supplier located in Cape Town, South Africa, known for its top-notch fasteners, including Alloy Steel Gr B7M Bolts. With a strong focus on quality, precision, and reliability, Thabiso Steel caters to a diverse array of industries, delivering bolts that can withstand tough standards and challenging environmental conditions. The company takes pride in its prompt delivery, competitive pricing, and strict compliance with international specifications. Whether it’s for the petrochemical, oil and gas, or heavy engineering sectors, Thabiso Steel’s Alloy Steel Gr B7M Bolts are designed to perform and endure where it counts the most.
These Alloy Steel Gr B7M Bolts are crafted from chromium-molybdenum steel, which provides enhanced strength and resistance to corrosion. Their typical chemical makeup includes carbon (0.37–0.49%), manganese (0.65–1.10%), phosphorus (max 0.035%), sulfur (max 0.040%), silicon (0.15–0.35%), chromium (0.75–1.20%), and molybdenum (0.15–0.25%). To achieve lower hardness levels suitable for corrosive environments, these bolts undergo controlled heat treatment and tempering. They boast a minimum tensile strength of around 100 ksi (690 MPa), along with improved ductility and impact resistance, making them perfect for high-pressure, high-temperature applications where reliability is essential.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to B7M mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts |
| Alloy Steel B7M | C | Mn | P | S | Si | Cr | Mo |
| 0.37-0.49 | 0.65-1.10 | 0.035 Max | 0.04 Max | 0.15-0.35 | 0.75-1.20 | 0.15-0.25 |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7M | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Jaxon Steel is a trusted manufacturer and supplier of high-quality Alloy Steel Gr B7M Bolts in Cape Town, South Africa. 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 B7M Bolts needs!
Alloy Steel Gr B7M Bolts are frequently utilized in critical applications that demand high strength, corrosion resistance, and the ability to withstand stress. They find extensive use in the oil and gas industry, offshore drilling rigs, petrochemical plants, refineries, and power generation facilities. These bolts are ideal for flanged connections, pressure vessels, valves, and various high-pressure piping systems. Their resistance to hydrogen embrittlement and sulfide stress cracking makes them particularly suitable for sour gas environments. Thabiso Steel offers B7M Bolts that comply with ASTM A193 specifications, ensuring dependable performance in both sub-zero and elevated temperature settings, where failure simply isn’t an option.
ThabisoSteel 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 Cape Town, South Africa.
Copyright 2025 ThabisoSteel. All rights reserved