SG Iron Crane Components – High-Performance Castings in Ahmedabad
At Ashirwad Industries, we specialize in SG iron crane components crafted for unmatched strength, durability, and performance. SG iron (spheroidal graphite iron), also known as ductile or nodular iron, provides superior tensile strength, ductility, and impact resistance compared to traditional grey cast iron. Our Ahmedabad foundry produces castings from 1 kg up to 75 kg—ideal for wheels, brackets, pulleys, and load-bearing crane parts.
Why Choose SG Iron for Crane Applications?
SG iron delivers exceptional performance in heavy-duty environments:
- Tensile Strength & Toughness – Comparable to steel, with tensile strength ranging from 350–900 MPa .
- High Ductility – Elongation up to ~25%, offering flexibility under impact—unlike brittle grey iron.
- Wear & Fatigue Resistance – Ideal for moving parts like crane wheels and pulleys.
- Vibration Damping & Machinability – Inherent damping properties reduce operational noise; easily machined for tight tolerances
Grades & Technical Specifications
| Grade | Tensile Strength (MPa) | Hardness (HB) | Elongation (%) |
|---|---|---|---|
| SG 400/15 | ≥ 400 | 130–180 | ~15 |
| SG 500/7 | ≥ 500 | 170–230 | ~7 |
| SG 600/3 | ≥ 600 | 190–270 | ~3 |
| SG 700/2 | ≥ 700 | 225–305 | ~2 |
| Based on common SG iron standards |
Our SG Iron Casting Process
- Pattern & Mold Design – Using sand, shell, or resin molds tailored to part specifications.
- Add Nodularizing Agents – Magnesium/Cerium added to molten iron to form spherical graphite for superior properties.
- Melting & Pouring – Controlled casting of SG iron grade based on selected specifications.
- Cooling & Shakeout – Precision cooling to ensure structural integrity and graphite nodules.
- Finishing & Machining – Machining to tight tolerances (±0.1 mm), surface finishing, shot blasting.
- Quality Control – Spectrometer chemical test, hardness, dimensional checks, ultrasonic inspection, and final validation.
Our plant includes induction furnaces, mold handling, and machining facilities to ensure consistent and high-quality components throughout Ahmedabad
Get in Touch
Contact us today to discuss your requirements and find the perfect SG Iron Spare Parts for your Material Handling Equipment
Industrial Applications
Our SG iron crane components serve critical roles, including:
- Crane Wheels & Pulleys – High wear resistance and impact strength
- Hook & Bracket Castings – Load-bearing with high fatigue endurance
- Gearbox & Drum Housings – Machined to precision for durability
- Customized Parts – Tailored to specific OEM designs
Case Highlight
Hoist Wheel (30 kg, SG 500/7 Grade)
- Tensile ≥ 500 MPa, Elongation 7%, Hardness ~200 HB
- Delivered within 4 weeks with ±0.05 mm tolerance
- Used in an Ahmedabad-based crane manufacturing plant
Lead Time & Order Scope
Part Sizes: 1 kg to 75 kg
Typical Lead Time: 4–6 weeks (complex custom pieces)
MOQ: Single unit prototypes or small batches (5–20+ units)
Why Ashirwad Industries?
Strong Technical Know-how — metallurgical expertise in SG iron.
Local Advantage — based in Ahmedabad with quick prototyping.
Quality Commitment — process control ensures consistent results.
