Product Overview

Stellite 6B cobalt-based high-temperature alloy, produced by Qinchuan New Materials (Zhengzhou) Co., Ltd., is an internationally advanced cobalt-chromium tungsten carbide-reinforced cast cobalt-based high-temperature alloy. It is an upgraded and improved version of the classic Stellite 6 alloy, featuring unique advantages such as high hardness over the entire temperature range, resistance to high-temperature softening, anti-galling and abrasion, and anti-thermal corrosion. The alloy's standard long-term stable service temperature is ≤850°C, with a short-term ultimate tolerance temperature of up to 1100°C, suitable for wear-resistant and heat-resistant components under high-temperature friction, sealing, and medium erosion conditions.

Main Product Features

Ultimate high temperature wear and scratch resistance

Uniform precipitation of high-hardness chromium tungsten composite carbide hard phase within the alloy maintains high hardness and low wear rate under long-term high-temperature friction conditions at 850°C, exhibiting excellent resistance to abrasive wear, medium erosion, galling, and abrasion.

Excellent high temperature thermal strength and tissue stability

The cobalt-based matrix exhibits excellent thermal stability, no risk of high-temperature softening and failure, and is resistant to grain coarsening and tissue deterioration during long-term high-temperature service. It also boasts excellent resistance to high-temperature creep and stress relaxation.

All-rounder corrosion and high-temperature oxidation resistance

High-chromium ratio forms a dense and stable high-temperature oxidation protective film, with excellent high-temperature oxidation resistance, sulfur resistance, thermal corrosion resistance, and acid-base medium corrosion resistance.

Excellent casting and welding surfacing properties

Excellent casting fluidity, suitable for precision casting of various complex wear-resistant components; also possesses excellent surfacing welding properties, capable of surfacing welding reinforcing layers on the surfaces of carbon steel, stainless steel, and nickel-based alloys.

Product Detailed Parameters

Brand: Qinchuan New Materials

Origin: Zhengzhou, China

Function: High temperature wear-resistant

Part Material: Cobalt-based Alloy

Product Model: Stellite 6B

Scope of Application

Stellite 6B cobalt-based high-temperature alloy is widely used in the following fields:

• Aerospace: High-temperature sealing rings for aero engines, wear-resistant coatings for guide vanes, valve seats, high-temperature friction components
• Energy Power: Gas turbine, steam turbine high-temperature seals, blade wear-resistant section, valve sealing surface, high-temperature gate valves/check valves core wear-resistant components
• Petrochemical Industry: High-temperature and high-pressure regulating valves, ball valve sealing surfaces, wear-resistant components for cracking equipment, friction parts for high-temperature reaction equipment
• Heavy-duty and power machinery: diesel engines, internal combustion engine high-temperature valve seats, sealing components, high-speed friction-wear parts, high-temperature extrusion die-wear inserts
• General High-End Industrial: High-temperature Furnace Abrasion-Resistant Parts, Heat Treatment Equipment Abrasion Parts, Precision High-Temperature Friction Pairs, High-End Industrial Abrasion-Resistant Welding Restoration Special Alloy Materials

Frequently Asked Questions (FAQ)

A: What is the long-term service temperature of Stellite 6B alloy?

A: The standard long-term stable service temperature of Stellite 6B alloy is ≤850°C, with short-term ultimate耐受 temperature up to 1100°C.

How is the wear resistance of Stellite 6B alloy?

A: Stellite 6B alloy boasts excellent wear resistance, maintaining high hardness and low wear rate even under high-temperature friction conditions.

A: How is the welding performance of Stellite 6B alloy?

A: Stellite 6B alloy has excellent surfacing properties, capable of surfacing reinforcing layers on the surfaces of carbon steel, stainless steel, and nickel-based alloys.