Alloy Steel Casting in Pakistan
Lahore Casting pours Alloy Steel (AISI 4140, 4340, 8620) to order at Mominpura Road, Lahore, Pakistan, by sand casting from 1 kg to 500 kg. Steel with chromium, molybdenum or nickel added so it can be quenched and tempered to a strength plain carbon steel cannot reach. The choice when a part is loaded hard and must not fatigue. Every heat is checked on an OES spectrometer before pouring and a material test certificate is issued on request.
Grades and properties
| Grades poured | AISI 4140, 4340, 8620 |
|---|---|
| Tensile strength | 850-1100 MPa after quench and temper |
| Typical hardness | 28-45 HRC, set by the tempering temperature |
| Key elements | 4140: 1% Cr, 0.2% Mo. 4340: adds 1.8% Ni. 8620: case-hardening grade |
| Heat treatment | Normalise, harden, temper - all in-house |
When to choose it
Use Alloy Steel when: The part carries heavy or reversing load: shafts, couplings, heavy brackets, gear blanks, hitch and linkage parts.
Choose something else when: You need corrosion resistance, or the part is a thin housing that only has to hold shape - grey iron is cheaper and machines better.
Castings poured in Alloy Steel
6 of the 40 standard castings are available in Alloy Steel. Any of them can also be poured to your own drawing.
- Rigid Flange Coupling Half — Gearbox, Transmission & Machine Housing, 2-160 kg
- Kiln / Conveyor Support Brackets & Bases — Cement Plant & Heavy Industrial Parts, 40-500 kg
- Conveyor Pulley Hub / Drum End Disc — Cement Plant & Heavy Industrial Parts, 10-220 kg
- Sugar Mill Coupling / Spacer — Sugar Mill, Rice Mill & General Industrial Replacement, 15-300 kg
- Cultivator / Rotavator Blade Holder (Heavy Duty) — Agricultural & Tractor Implement, 3-30 kg
- Lifting Lug / Eye Plate Casting — General Machine Parts, 2-80 kg
Get a quote
Send a drawing (DWG, DXF, STEP, IGES or PDF) or a sample part. Standard lead time is 3-7 working days and there is no minimum order quantity.
Other alloys poured here
- SG Iron (Ductile Iron) — 400/18, 500/7, 600/3
- Grey Cast Iron — FG200, FG260, FG300
- Manganese Steel (Hadfield) — Mn13, Mn18
- High Chrome Iron — 15% Cr, 25% Cr
- Stainless Steel — 304, 316, CF8M
- Carbon Steel — AISI 1045, 1050
- Mild Steel — AISI 1020, 1025