Q&Q Solutions are experienced Alloy Steel Casting Manufacturers in India, producing heat-treated, high-integrity alloy steel castings from our Coimbatore foundry for oil & gas, heavy engineering, defence, and global OEM supply chains. Full cast-to-CNC capability under one roof.
12+
Alloy Steel Grades
500kg
Max Casting Weight
±0.1mm
Tolerance (IC route)
ISO
9001:2015 Certified
Heat Treatment In-House
Normalising, annealing, quenching & tempering — all carried out at our foundry.
Hardness and tensile properties verified with in-house testing lab before dispatch.
Global OEM Supply
As trusted Alloy Steel Casting Manufacturers in India, QQS supplies to European, Middle Eastern, and South-East Asian OEMs with full MTR documentation.
Alloy steel castings demand the highest level of metallurgical control — from chemistry verification at the furnace to post-heat-treatment mechanical testing. QQS has built its alloy steel casting capability around this discipline.
Our Coimbatore foundry combines investment casting and sand casting routes for alloy steel — giving customers the choice of near-net-shape precision or cost-effective large-format castings, all with full in-house CNC machining and quality documentation.
OES Spectrometry on Every Heat
Chemistry verified before pouring. Certificates issued as standard.
In-House Heat Treatment
N, A, Q&T — full mechanical property achievement verified by test.
CMM Dimensional Inspection
Critical dimensions 100% checked, reports with every shipment.
CNC Machining In-House
Every alloy steel casting CNC finished in our own machine shop.
Our Alloy Steel Casting Foundry in Coimbatore covers 12+ international alloy steel grades across three major families — each with full chemistry and mechanical property documentation.
Chromium-Molybdenum Steel
(Cr-Mo · 4140 · 4130 · 8630)
Manganese-Molybdenum Steel
(Mn-Mo · LCC · LCB · WCB)
Nickel-Chromium Steel
(Ni-Cr · 4340 · EN36 · EN39)
Properties shown are for heat-treated (Q&T) condition. Actual values confirmed by test certificate issued with every shipment from our Alloy Steel Casting Foundry.
All heat treatment carried out in our own furnaces — temperature-logged, load-certified, and traceable to the casting heat number.
Refines grain structure and improves toughness after casting. Standard treatment for carbon and low-alloy steel castings.
Softens the casting for machining. Used for complex geometries requiring significant material removal.
Achieves maximum strength and toughness. Water or oil quench followed by tempering to target hardness range.
Reduces residual stresses after welding or machining. Critical for dimensional stability in precision alloy steel castings.
As Alloy Steel Casting Manufacturers in India, QQS supplies into the most demanding application environments — where material failure is not an option.
Oil & Gas — Valves & Pressure Equipment
Valve bodies, gate valves, globe valves, bonnets, and pressure vessel components in WC6, WC9, LCC grades. NACE compliant options available.
Heavy Engineering — Mill & Mining
Mill liners, crusher jaws, grinding media, and wear-resistant parts in Mn-steel and Ni-Cr alloy steel grades.
Wind Energy — Structural Castings
Mill liners, crusher jaws, grinding media, and wear-resistant parts in Mn-steel and Ni-Cr alloy steel grades.
Marine & Offshore — Sub-Zero Service
Mill liners, crusher jaws, grinding media, and wear-resistant parts in Mn-steel and Ni-Cr alloy steel grades.
Key Part Types We Produce
Every alloy steel casting leaves our foundry with a full quality dossier — because our customers’ applications demand it.
Full chemistry report on every heat. Carbon, manganese, chromium, molybdenum, nickel — all elements verified to grade.
Tensile (UTS, YS, elongation), Charpy impact, and Brinell hardness on heat-treated test bars — per ASTM / EN standards.
3D coordinate measurement on critical features. Dimensional report issued with every batch for customer records.
Ultrasonic testing, magnetic particle, and dye penetrant inspection available as per customer specification or standard.
India’s foundry industry produces millions of tonnes of castings annually — but very few foundries combine alloy steel casting expertise with in-house CNC machining, heat treatment, and export-grade documentation. QQS does.
As specialist Alloy Steel Casting Manufacturers in India, we serve customers who cannot afford casting failures — oil & gas operators, wind turbine manufacturers, and heavy engineering OEMs who need every part backed by test certificates, dimensional reports, and full heat traceability.
Focus Keywords
Alloy Steel Casting Manufacturer India
Alloy Steel Casting Manufacturers in India
Send us your drawing, alloy grade, weight, and quantity. Our foundry engineers will review your specification and return a detailed quote within 48 hours.
