Womic Stainless Steel Co., Ltd
The bimetal wear-resistant alloy pipe is a high-performance composite pipe designed for severe abrasive and high-pressure working conditions.
Outer Layer:
Made of ordinary carbon steel pipe such as Q235, providing excellent strength, toughness, pressure resistance, and weldability.
Inner Lining:
Made of high-chromium wear-resistant alloy, offering extremely high hardness and outstanding abrasion resistance.
Thanks to this optimized structural design, the wear resistance of the bimetal composite pipe is approximately 5 times higher than that of ordinary carbon steel pipes, making it a highly cost-effective solution for long-term operation.
By Material Combination
Inner Wear-Resistant Layer
High Chromium Cast Iron (Cr 20%–30%)
High Chromium Alloy (Cr≥26%)
Superhard Wear Alloy (HRC 56–65)
Typical Chemical Composition (Inner Layer–Example):
Chromium (Cr): 20–30%
Carbon (C): 2.5–3.5%
Molybdenum (Mo): 0.5–2.0%
Nickel (Ni):≤1.5%
Physical & Mechanical Properties (Inner Layer):
Hardness: HRC 56–65
Excellent abrasion resistance
High thermal stability
Superior corrosion resistance in wet abrasive media
Outer Structural Layer
Carbon Steel: Q235, Q345, ASTM A106, ASTM A53
Low Alloy Steel: ASTM A335, EN 10216, GB standards
Properties (Outer Layer):
High impact resistance
Excellent weldability
Good pressure-bearing capability
Straight Pipes
Outer Diameter (OD): DN50–DN1200
Length: 3m–12m (custom length available)
Wear Layer Thickness: 3mm–20mm
Pipe Fittings
Bimetal elbows (30°, 45°, 60°, 90°)
Tees
Reducers
Y-pipes
Flanged pipes
Customized special-shaped pipes
1. Outstanding Wear Resistance
Inner lining hardness: HRC≥55
High-chromium cast iron structure with M7C3 carbides
Excellent toughness combined with ultra-high hardness
Significantly extended service life compared with conventional steel pipes
2. Long Service Life
Typical service life: up to 10 years under normal operating conditions
Greatly reduces replacement frequency, downtime, and maintenance costs
Truly achieves the effect of“1 pipe replacing 10 ordinary pipes”
3. High Pressure Bearing Capacity
Outer carbon steel pipe ensures strong mechanical strength
Suitable for low, medium, and high-pressure pipeline systems
Reliable performance under continuous heavy-load operation
4. Excellent Thermal Shock & Vibration Resistance
Inner and outer layers have similar thermal expansion coefficients
No delamination, cracking, or lining failure under rapid temperature changes
Ideal for working conditions with frequent thermal fluctuations
5. Advanced Manufacturing Technology
The high-chromium alloy wear-resistant lining is formed by an advanced centrifugal casting process, ensuring:
Dense and uniform lining thickness
Strong metallurgical bonding between inner and outer layers
Stable quality and consistent performance
The complete product series is manufactured using bimetal composite casting technology, combining:
High wear resistance of high-alloy cast steel
High pressure resistance and mechanical properties of carbon steel pipes
Easy Installation & Flexible Connection
Bimetal lined high-chromium wear-resistant alloy pipes support multiple connection methods:
Flange connection
Quick coupling
Direct welding
They are easy to cut, weld, install, and maintain on site, significantly improving construction efficiency.
Bimetal composite wear-resistant pipes are widely used in industries with severe abrasion and impact, including:
Hydraulic slag conveying systems
Slurry conveying with large particle sizes
Thermal power plants:
Coal powder conveying, wet & dry ash conveying pipelines, stone coal systems
Mining industry:
Ore, tailings, slurry, and material transportation pipelines
Metallurgy, cement, and bulk material handling systems
With high hardness, excellent wear resistance, strong pressure-bearing capacity, and long service life, bimetal lined high-chromium wear-resistant alloy pipes are the ideal solution for demanding industrial environments. Choosing an experienced manufacturer ensures stable quality, reliable performance, and maximum return on investment.
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We adopt internationally advanced manufacturing technologies:
• Centrifugal Casting
• Lost Foam Casting (EPC Process)
• Shell Mold Casting
• Metallurgical Composite Technology
These processes ensure:
• Uniform wear layer thickness
• High density and compact structure
• Stable and consistent product quality
• High production yield
• Plastic caps on pipe ends
• Anti-rust oil coating
• Bubble film / plastic wrapping
• Wooden cases or steel frames (for fittings)
• Customized packing as per customer requirements• FOB / CFR / CIF / DDP available
• Sea freight, bulk shipment, or container loading
• On-time delivery with full export documentation
• Support for project-based phased deliveryYour Wear Resistance Solution Partner If you are looking for reliable bimetal composite pipes, wear resistant piping systems, or custom-engineered abrasion-resistant solutions, Womic Steel is ready to support you.
Email: info@womicstainless.com
Website: www.womicstainless.com
Contact: Please send your drawings, specifications, or working conditions for technical evaluation. Womic Steel–Protecting Industrial Lifelines with Advanced Wear Resistance Technology.
