ASTM A193 B7: High-Temperature Alloy Steel Strength
Crafted from premium alloy steel and heat-treated to ASTM A193 Grade B7 specification, these rods achieve a minimum tensile strength of 125 ksi (860 MPa) and maintain structural integrity at temperatures up to 800°F (427°C). The chromium-molybdenum alloy composition provides exceptional resistance to creep, stress relaxation, and deformation—making B7 the trusted standard for petrochemical, power generation, and high-pressure piping systems where safety cannot be compromised.
Advanced Surface Protection: PTFE Blue or Dacromet
Choose the coating engineered for your environment:
PTFE Blue Coating: A premium fluoropolymer layer that offers superior chemical resistance, low friction for precise torque control, and exceptional protection against acids, solvents, and saltwater. Ideal for offshore platforms, wastewater treatment, and aggressive chemical processing environments.
Dacromet (Dacro) Coating: A zinc-flake, chromium-free technology providing outstanding salt-spray resistance (1,000+ hours), excellent adhesion, and uniform coverage—even on complex geometries. Perfect for heavy industry, marine applications, and infrastructure projects requiring long-term rust prevention without hydrogen embrittlement risk.
Precision Metric Sizing: M27×300
With an exact M27 diameter and 300mm length, these fully threaded rods adhere to strict Metric system tolerances for seamless compatibility with standard heavy hex nuts, flange assemblies, and anchor plates.
The continuous threading allows flexible positioning and secure fastening at any point along the rod—streamlining installation and reducing on-site adjustment time.
OEM/ODM Customization Supported
Your project specifications are unique—and we're ready to match them.
We fully support OEM/ODM customization, allowing you to tailor length, thread pitch, coating thickness, packaging, or even material grade (including L7, B8, B8M) to meet exact engineering drawings.
From prototype development to bulk production, our flexible manufacturing ensures you receive fasteners built precisely for your application.
Shanghai Soverchannel Industrial Co., Ltd. is a manufacturer integrating R&D, production, and sales, focusing on providing high-precision non-standard and standard fastening solutions for customers. The company has been deeply engaged in the automotive fastener industry for many years. It owns its own manufacturing plant, Nantong Jinzhai Hardware Co., Ltd., and has accumulated solid technical strength and rigorous quality control experience.
Our main products cover various high-quality bolts, nuts, steel processing parts, welding components, and customized special-shaped parts. Relying on advanced production equipment and a full-process inspection system, we are not only capable of mass-producing high-standard parts but also excel in customizing non-standard bolts and complex special-shaped components according to specific customer requirements. Over the years, we have always adhered to technology-driven development and earned trust through quality, becoming a reliable partner for numerous customers in the automotive and industrial fields.
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