Cast basalt composite cross
Cast basalt composite cross - industrial steel product
Basalt lined elbows are critical wear-resistant pipe fittings designed to withstand high abrasion and impact at flow direction changes.
Cast basalt lined steel elbows are high-performance wear-resistant pipe fittings designed for severe abrasion and erosion conditions where fluid direction changes create intense impact and turbulence.
These elbows are widely used in mining, power plants, cement production, steel mills and slurry transport systems where particle-laden fluids continuously strike the pipe wall at changing angles.
Compared with standard carbon steel elbows, basalt lined elbows significantly extend service life and reduce maintenance frequency.
The elbow section is one of the highest wear zones in any pipeline system due to centrifugal force and particle collision at the bend.
Cast basalt provides exceptional hardness and a dense crystalline structure that resists abrasion from coal, ore, slag, ash, sand and other abrasive media.
This makes basalt lined elbows an essential component in long-distance and high-volume conveying systems.
A cast basalt lined steel elbow is a pipe fitting consisting of a carbon steel outer shell and an internal lining made of fused cast basalt. The steel body provides mechanical strength and pressure resistance, while the basalt lining protects against abrasion and corrosion.
The elbow is the most critical wear component in pipeline systems because flow direction changes generate strong impact forces on the inner wall surface.
Cast basalt is produced by melting natural volcanic rock at high temperature and forming a highly wear-resistant crystalline structure after controlled cooling.
| Component | Function |
|---|---|
| Steel Outer Shell | Provides structural strength and pressure resistance. |
| Bonding Layer | Fixes basalt lining to steel surface. |
| Cast Basalt Lining | Resists abrasion, erosion and chemical attack. |
| Bend Zone Reinforcement | Extra protection at high wear curvature area. |
Ideal for abrasive slurry flow at bends.
Withstands particle collision at high velocity.
Several times longer than steel elbows.
Reduces downtime and replacement cost.
| Property | Typical Value |
|---|---|
| Material | Cast Basalt Lined Steel |
| Hardness | Mohs 8 – 9 |
| Density | 2.9 – 3.1 g/cm³ |
| Compressive Strength | ≥ 450 MPa |
| Water Absorption | < 0.2% |
| Working Temperature | -40°C to 350°C |
| Abrasion Resistance | Excellent |
| Chemical Resistance | Excellent |
A cast basalt lined steel elbow is a piping component used in industrial settings that is designed to resist wear, corrosion, and erosion caused by abrasive or corrosive materials, such as slurry, chemicals, acids, and salts. The elbow is made of steel and lined with cast basalt, a volcanic rock with excellent resistance to abrasion, impact, and thermal shock. The basalt lining protects the steel from corrosion and extends the lifespan of the elbow, reducing downtime, maintenance costs, and environmental impact. Cast basalt lined steel elbows are commonly used in mining, power generation, cement, pulp and paper, and chemical industries.
The channel series of cast basalt lined steel elbow is the same as that of cast basalt lined steel elbow, and its turning radius and center angle are made according to the user's requirements. The technical parameters of cast basalt lined steel elbow outer steel pipe are determined according to the operating pressure of the pipeline system.
| Nominal Diameter (Dn) | Minimum Thickness Of Filling Layer (T) | Standard Length |
|---|---|---|
| 100 | 10 | 4000，6000，8000 |
| 125 | ||
| 150 | ||
| 175 | 6000，8000，12000 | |
| 200 | ||
| 225 | ||
| 250 | ||
| 275 | ||
| 300 | ||
| 350 | ||
| 400 | 12 | |
| 450 | ||
| 500 | 15 | |
| 550 | ||
| 600 | 20 | 6000 |
| 650 | ||
| 700 | 25 | |
| 750 | ||
| 800 |
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
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