Customized Forged Ear Shaft Seats for Steel Smelting Factory in China - High-Quality Suppliers
Product Introduction
Precision-Engineered Trunnion Base for Steelmaking Operations
Crafted exclusively for demanding metallurgical environments, this high-performance trunnion base utilizes premium 20CrMo alloy steel (equivalent to AISI 4118/4120) with exceptional tensile strength, impact toughness, and heat resistance up to 550°C. Engineered to replace legacy cast components prone to premature failure, our hot-forged manufacturing process eliminates internal defects and ensures homogeneous grain structure – critical for withstanding continuous thermal cycling and dynamic loads in converter/BOF systems.
Key Advantages vs. Conventional Cast Units
- 120% Extended Service Life through refined microstructure
- Eliminated Fatigue Fractures via uniform stress distribution
- Zero Porosity Defects guaranteeing structural integrity
- Proven in Gansu Province Steelworks with 18-month zero-failure operation
Ideal for global steel producers seeking to reduce unplanned downtime and maintenance costs, these forged trunnion bases represent the new standard in critical load-bearing components. Customizable to match existing equipment footprints for seamless retrofitting.
Why Choose Us?
- 18+ Years Manufacturing Expertise
- Direct Factory Pricing
- Technical Support for Installation & Selection
- Compliance with API, CE, and ASME Standards
Product Display
Frequently Asked Questions
The trunnion base is manufactured using premium 40CrNiMo and 20CrMo alloy steel (equivalent to AISI 4118/4120), which provide excellent tensile strength, impact toughness, and heat resistance up to 550°C.
Forged trunnion bases offer a 120% extended service life due to their refined microstructure, eliminate fatigue fractures through uniform stress distribution, and guarantee zero porosity defects for maximum structural integrity.
Our products are manufactured according to the GB/T500.8-2007 standard. Additionally, our production processes comply with international API, CE, and ASME standards.
Yes, our forged trunnion bases can be fully customized to match existing equipment footprints, allowing for a seamless retrofitting process in converter and BOF systems.
The manufacturing process includes hot-forging, rough addition, heat treatment, fine addition, and boring and washing. This comprehensive process eliminates internal defects and ensures a homogeneous grain structure.
Yes, we provide full technical support for both component selection and the installation process to ensure optimal performance and safety in your steel smelting operations.

