Low Alloy Steel Castings
Welcome to Bhanu Special Castings Pvt. Ltd. – your trusted partner for high-performance low alloy steel castings in Vijayawada and across India. As a leading metal casting company, we specialize in manufacturing premium low-alloy steel components by adding controlled amounts of alloying elements (Cr, Mo, Ni, V – typically <8%) to carbon steel, delivering superior strength, hardenability, wear resistance, and toughness for critical industrial applications.
Low alloy steel castings are engineered ferrous alloys that combine the cost-effectiveness of carbon steel with dramatically improved mechanical properties through strategic alloying. These castings achieve tensile strengths of 600-1200+ MPa (after heat treatment), excellent impact resistance, deep hardenability allowing uniform properties in thick sections, and superior wear/abrasion resistance – making them indispensable for crushing equipment, mining machinery, power plant components, and heavy-duty automotive parts where plain carbon steel would fail prematurely.
Our low alloy steel castings deliver exceptional performance including high tensile and yield strength (up to 1200 MPa), outstanding toughness and impact resistance, excellent hardenability for thick sections, superior wear and abrasion resistance, and cost-effective strength-to-weight ratios. Manufactured in grades including EN 8, EN 18, EN 19, EN 24, EN 36, IS 1030, IS 2707, these castings are the preferred choice for crusher jaw holders and toggle plates, power plant valve housings and rollers, mining excavator adaptors, heavy machinery gears, and automotive axle hubs. With advanced heat treatment facilities and rigorous quality control, every casting meets ASTM, IS, and customer-specific requirements.
Our Product Range
We manufacture high-strength low alloy steel castings engineered for extreme service conditions:
- Stone Crusher Spares Jaw holders (stationary and swing), toggle plates, and flywheel castings.
- Thermal & Power Plant Components Valve housings, bull ring segments, and shrink-fit rollers.
- Mining & Earthmoving Equipment Excavator adaptors, bearing housings, and crusher body spares.
- Heavy Engineering Parts Gear castings, mould bases, die blocks, and white metal bearing bodies.
- Sugar & Agriculture Machinery Crown pinions, harvester driving gears, and trailer hubs.
- Automotive Components Axle hubs, spider hub castings, and transmission housings.
- Steel Plant Parts Kiln components, discharge plates, and heavy-duty fixtures.
- Custom Low Alloy Castings Application-specific solutions manufactured to customer specifications.
Weight Range: 1 kg to 8000 kg | Grades: EN 8, EN 19, EN 24, IS 1030
Industry Applications
Our low alloy steel castings serve critical high-stress applications across:
- Mineral Processing Crushing, screening, and material handling equipment.
- Power Generation Thermal plants, valve systems, and rotating equipment.
- Mining Operations Excavators, loaders, and underground mining equipment.
- Cement Industry Kiln components, crusher parts, and grinding mills.
- Sugar & Agriculture Tractors, harvesters, and sugar mill machinery.
- Heavy Vehicles Commercial trucks and construction equipment.
- Steel Plants Production equipment and material handling systems.
- General Engineering Industrial gears, machine bases, and engineered components.
Low Alloy Steel castings are available in multiple grades such as IS 1030, EN 8, EN 18, EN 19, EN 24, EN 36, EN 353, IS 2707, IS 2708, IS 2644, 24CrMo4, Cr2 Mo4 WCA, WCB, WCC, LCB, WC1 . These castings provide enhanced mechanical properties for critical components like gears, shafts, structural supports, crusher spares, and industrial machinery parts.
Customization and Quality Assurance
We provide fully customized low alloy steel castings engineered to your exact specifications, from alloy composition and heat treatment optimization to precision machining with tight tolerances. Our team in Vijayawada ensures every component meets the demanding requirements of crusher, mining, and power plant applications.
Customization Capabilities
- Custom grade selection (EN 8 to EN 36, IS 1030 series)
- Optimized heat treatment (Q&T, normalizing, annealing)
- Heavy-duty machining for crusher components
- Specialized surface treatments for wear resistance
- Reverse engineering from worn crusher parts
- Part marking and traceability per requirements
Quality Testing & Certifications
- Chemical Analysis OES spectrometer verification of chromium, molybdenum, and nickel content.
- Mechanical Testing Tensile strength, impact resistance, and hardness testing as per IS and ASTM standards.
- Heat Treatment Verification Hardness mapping and microstructural analysis to confirm proper heat treatment cycles.
- Non-Destructive Testing (NDT) Ultrasonic (UT) and Magnetic Particle (MT) testing for critical load-bearing components.
- Dimensional Inspection Coordinate Measuring Machine (CMM) inspection for tight tolerance and precision parts.
- IS / ASTM Compliance Full material certification and traceability in accordance with applicable standards.
Every low alloy steel casting undergoes rigorous testing including chemical composition analysis, tensile and impact testing, hardness verification, heat treatment validation, and advanced NDT inspection. Our quality protocol ensures compliance with IS 1030, EN standards, ASTM A148 and customer specifications.
Why Choose Bhanu Special Castings for Low Alloy Steel?
With specialized expertise in heavy-duty low alloy steel castings for crushing, mining, and power industries, we deliver consistent quality, optimal heat treatment, and reliable performance. Here's why we're the trusted choice:
Crusher Industry Specialists
Decades of experience manufacturing jaw holders, toggle plates, and crusher components for India's leading quarrying operations.
Advanced Heat Treatment
Large capacity Q&T furnaces with precise temperature control ensuring uniform hardness throughout thick sections.
Heavy Casting Capability
Up to 8 ton single piece castings with uniform mechanical properties and complete NDT inspection.
Complete Machining
In-house heavy-duty CNC machining for crusher components, ready-to-install with precision fit-up.
Emergency Supply
Fast-track production for critical crusher breakdowns, minimizing your plant downtime.
Technical Support
Application engineering, material selection guidance, and field support for installation.
Grades and Applications of Low Alloy Steel Castings
Our Low Alloy Steel castings are produced in multiple grades to meet a variety of industrial needs. Common grades include IS 1030, EN 8, EN 18, EN 19, EN 24, EN 36, EN 353, IS 2707, IS 2708, IS 2644, 24CrMo4, Cr2Mo4, WCA, WCB, WCC, LCB, WC1 .
These castings are ideal for applications requiring high strength, toughness, and reliability. Typical use areas include:
- Stone Crusher Industry: Stationary jaw holders, swing jaw holders, toggle plates, flywheel castings
- Thermal & Steel Plants: Valve housings, bull ring segments, shrink-fit rollers
- Mining & Earthmoving: Excavator adaptors, bearing housings, crusher body spares
- Cement & Heavy Engineering: White metal bearing bodies, gear castings, mould bases, die blocks
- Sugar & Agriculture: Crown pinions, harvester driving gears, trailer hubs, trash plates
- Automotive & Sponge Iron: Axle hubs, spider hub castings, bearing housings
| Grade | Properties | Common Applications |
|---|---|---|
| EN 8 / EN 18 / EN 19 | High strength, good toughness, moderate wear resistance | Gears, shafts, structural components, machinery parts |
| EN 24 / EN 36 / IS 1030 | High tensile strength, excellent toughness, suitable for heavy-duty applications | Crusher spares, industrial rollers, flywheels, bearing housings |
Key Properties & Benefits of Low Alloy Steel Castings
Low alloy steel castings combine the affordability of carbon steel with enhanced performance achieved through controlled additions of elements such as chromium, molybdenum, nickel, and vanadium. These alloys offer superior hardenability, enabling deeper and more uniform heat treatment in thick sections.
- High Tensile & Yield Strength Tensile strength often ranging from 600–1200+ MPa after heat treatment, making them ideal for heavy-load applications such as crushers and earthmoving equipment.
- Excellent Toughness & Impact Resistance Good ductility and fatigue life under shock and cyclic stress, reducing the risk of premature failure in mining and power plant applications.
- Enhanced Wear & Abrasion Resistance Alloying elements such as chromium and molybdenum improve surface hardness, extending service life in crusher spares, rollers, and wear-prone components.
- Good Hardenability & Heat Treatability Uniform mechanical properties can be achieved even in large sections through quenching and tempering for an optimized strength–toughness balance.
- Improved Corrosion & Oxidation Resistance Offers better resistance than plain carbon steel in moist or moderately high-temperature environments, such as thermal power plants.
- Cost-Effective Performance Higher strength-to-weight ratio compared to carbon steel helps reduce material usage while maintaining reliability and long service life.
These properties make low alloy steel castings the preferred choice for demanding, high-stress components where plain carbon steel is not sufficient.
Typical Composition & Properties (Common Low Alloy Grades – e.g., IS 1030, EN 19/EN 24 Equivalents)
| Element / Property | Typical Range / Value | Notes (Heat-Treated / Quenched & Tempered) |
|---|---|---|
| Carbon (C) | 0.25–0.45% | Balance of strength & toughness; higher for wear-focused grades |
| Manganese (Mn) | 0.60–1.50% | Improves hardenability & strength |
| Chromium (Cr) | 0.80–1.50% (in Cr grades like EN 19) | Enhances wear/corrosion resistance & hardenability |
| Molybdenum (Mo) | 0.15–0.35% (in Mo grades like EN 24) | Boosts high-temp strength & toughness |
| Nickel (Ni) | 0–2.0% (in Ni-Cr grades like EN 24) | Increases impact toughness & low-temp performance |
| Tensile Strength | 600–1200+ MPa | Depends on grade/heat treatment (e.g., 800–1100 MPa for EN 19/EN 24) |
| Yield Strength | 400–900+ MPa | High load-bearing; min values per standard |
| Elongation | 10–25% | Good ductility retained after hardening |
| Hardness (HB) | 180–350+ HB | After tempering; higher for wear applications |
Values are typical for quenched & tempered conditions in grades like IS 1030, EN 8/19/24 equivalents (ASTM A148/A27 similar). Custom heat treatments and compositions available for specific needs.
Frequently Asked Questions (FAQ)
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