ASTM A320L7/A193B7 Steel Bar

King Steel specializes in distributing high-quality bar, rod, and wire product to manufacturers throughout North America. We offer turnkey services to our clients, including in-house processing, testing, and warehousing/logistics, making us a one-stop shop for your steel needs.

If you need alloy steel bolting materials for pressure vessels, valves, flanges, and fittings, we can supply materials that meet ASTM A193 Grade L7 Class B requirements.

Chemical Composition

• Carbon 0.37 – 0.49
• Manganese 1.10 (max)
• Phosphorus 0.035 (max)
• Sulfur 0.040 (max)
• Silicon 0.15 – 0.35
• Chromium 0.75 – 1.20
• Molybdenum 0.15 – 0.25