What is the difference between case hardening and induction hardening?

Case hardening (carburizing) is a thermo-chemical process where carbon diffuses into the surface at 900–950°C over several hours — ideal for small-to-medium batch production of mild steel parts. Induction hardening uses electromagnetic heating, takes minutes per part, and is suited for precision localized hardening of medium-high carbon steels. Case hardening achieves 0.2–2mm depth; induction achieves 0.5–5mm. We offer both at our Ludhiana facility.

Which steel grades are suitable for case hardening?

Low-carbon steels and alloy steels are ideal: EN8 (C45), Mild Steel, 20MnCr5, 16MnCr5, EN36, and similar grades. These steels have insufficient carbon to harden by induction alone, so case hardening adds carbon to the surface layer. EN19, EN24, and higher-carbon steels are better suited to induction or through-hardening.

What case depth can you achieve with carburizing?

Standard case depths of 0.3–1.5mm are achieved for most gear, shaft, and pin components. Deeper cases up to 2mm are possible with extended carburizing cycles. Case depth is verified on sample cross-sections and reported with each batch. Specify your required case depth when requesting a quote.

What components do you process for case hardening in Ludhiana?

We process gears (spur, helical, bevel), shafts, pins, cams, bolts, bearing surfaces, and general steel components for automotive, agricultural, and industrial customers across Punjab. Both small batches and high-volume monthly production runs are accepted.

Do you provide hardness test reports for case hardened components?

Yes. Every batch includes a Rockwell hardness test report (HRC surface and core) and case depth measurement. Documentation is available for OEM incoming inspection and export quality requirements. Metallurgical cross-section reports are available on request.

How much do case hardening services in Ludhiana cost?

Case hardening job-work pricing depends on component weight, required case depth, steel grade, and order quantity. We price most jobs on a per-kilogram or per-piece basis, with attractive rates for bulk OEM orders. Share your drawing and quantity on WhatsApp for an exact quotation within 24 hours.

Case Hardening Services in Ludhiana

Name: Thakur Industries
Address: 1486/5, Street Number 1, Harkrishan Nagar, Shimlapuri, Ludhiana, Punjab, 141003, IN
Telephone: +91 7900000776
Price range: ₹₹

Looking for reliable case hardening services in Ludhiana? At Thakur Industries, our precision carburizing job work raises the surface of low-carbon steels like 20MnCr5, 16MnCr5 and EN8 to 58–62 HRC with a controlled 0.5–1.5mm case depth, while keeping the core tough and ductile — ideal for gears, shafts and pins used across Punjab’s automotive, agricultural and industrial sectors.

58–62 HRCISO Process3–5 Day Turnaround4.8★ · 127 Reviews

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What Is Case Hardening?

Case hardening is a thermo-chemical heat treatment process that increases the surface hardness of low-carbon or alloy steel components by infusing carbon or nitrogen atoms into the outer layer. The result — a hard, wear-resistant surface (case) and a tough, ductile core that resists impact and fatigue. It is the preferred route for low-carbon grades such as 20MnCr5 and 16MnCr5, which lack the carbon needed to harden by induction hardening alone.

Industrial Case Hardening Process Explained

Our combination of depth hardening and quenching ensures a durable, high-wear-resistant surface — ideal for automotive and industrial parts.

Heating

Components are heated to a high temperature (900°C–950°C) in a carbon-rich atmosphere.

Carburizing/Nitriding

Carbon or nitrogen diffuses into the steel surface, creating the 'case'.

Quenching

Rapid cooling using polymer or water locks in the surface hardness.

Tempering & Inspection

Reheating to improve toughness, followed by rigorous testing for quality assurance.

Why Choose Case Hardening for Steel Components?

Excellent Wear Resistance

Creates a hard, durable surface that withstands abrasion and friction.

Tough Core

The core of the component remains tough and less brittle, preventing fractures under impact.

Improved Impact Strength

The combination of a hard case and tough core enhances overall component durability.

Cost-Effective

An efficient process for batch production, offering great value for high-volume work.

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Case Hardening Suitable for Steel Components & Alloys

Thakur Industries offers case hardening job work for a wide range of steels and alloy grades commonly used in Punjab’s manufacturing industries.

Materials We Treat

EN8

EN19

EN24

Mild Steel

20MnCr5

16MnCr5

Alloy Steel

Need detailed grade data? Explore our EN8 steel hardening and EN24 steel hardening pages, or browse all material heat treatment options.

Common Components

Gears

Shafts

Cams

Pins

Bearings

Bolts

We also offer dedicated gear hardening in Ludhiana and shaft hardening job work.

Explore Surface Hardening

Case Hardening vs. Induction Hardening

Factor	Case Hardening	Induction Hardening
Process	Chemical diffusion (carbon/nitrogen)	Electromagnetic heating
Depth	0.2mm – 2mm	0.5mm – 5mm
Cycle Time	Hours	Minutes
Distortion	Moderate	Minimal
Best For	Batch production of small-medium parts	Precision localized treatment

Learn More About Induction Hardening

Case Hardening Pricing & Turnaround

We offer competitive case hardening rates for both prototype batches and bulk OEM production. Final pricing depends on component weight, case depth, steel grade and quantity — share your drawing for an exact quote within 24 hours.

Pricing Basis

Per kg or per piece, with reduced rates on bulk and repeat OEM carburizing orders.

Minimum Order

No rigid minimum — single trial parts to multi-thousand-piece lots accepted.

Turnaround

Standard 3–5 working days; urgent same-week batches for regular clients.

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Quality inspection and hardness testing of a case hardened steel component

Precision-Controlled Heat Treatment You Can Trust

Our case hardening process in Ludhiana is carefully monitored to maintain temperature consistency and surface uniformity. Each part undergoes case depth testing, hardness inspection, and microstructure analysis to ensure perfect metallurgical results.