Trusted OHNS Steel Supplier in Mumbai – Oil Hardening Non Shrinking Tool Steel
Jini Enterprise is a premier OHNS steel supplier in Mumbai, offering high-quality Oil Hardening Non Shrinking tool steel to industries across the city and beyond. OHNS (Oil Hardening Non Shrinking) steel, also known as O1 grade, is a versatile tool steel that exhibits minimal dimensional change during heat treatment, making it ideal for precision tooling applications[citation:8][citation:10].
OHNS steel is a general-purpose tool steel that provides excellent hardness, strength, and wear resistance where conventional alloy steels fall short[citation:1]. With its low distortion characteristics during hardening, OHNS is the preferred choice for master tools, gauges, dies, and precision components[citation:8][citation:10].
With our strategically located warehouse in Mumbai, we serve the entire Mumbai Metropolitan Region including Andheri, Thane, Navi Mumbai, Bhiwandi, and all major industrial belts. Our commitment to quality, competitive pricing, and on-time delivery makes us the preferred partner for OHNS steel in Mumbai.
🏭 Why Choose Jini Enterprise as Your OHNS Steel Supplier?
✔ Premium Quality
Premium OHNS steel from trusted mills with full certifications[citation:1][citation:10].
✔ Mumbai Base
Fast delivery across Mumbai, Thane & Navi Mumbai.
✔ Wide Range
Available in rounds, flats, blocks & custom sizes.
✔ Quality Assured
Mill test certificates & hardness testing available[citation:1][citation:10].
🔧 What is OHNS Steel?
OHNS (Oil Hardening Non Shrinking) steel, also known as O1 tool steel, is an oil-hardening, non-deforming tool steel that can be hardened at relatively low temperatures[citation:10]. It is a versatile, through-hardening alloy steel known for its excellent dimensional stability during heat treatment, good wear resistance, and ability to maintain a sharp cutting edge[citation:8].
OHNS steel is characterized by minimal volume change when hardened and tempered at low temperatures, making it ideal for applications where dimensional accuracy is critical[citation:8]. The material exhibits good durability while offering excellent wear resistance properties and holds a good cutting edge[citation:8].
📦 OHNS Steel Inventory – Mumbai Stock
We maintain comprehensive stock of OHNS steel in various forms:
| Form |
Size Range |
Hardness |
Availability |
| Round Bars |
6mm – 300mm |
Annealed ~ 200 HB |
✅ In Stock |
| Flat Bars |
10mm – 250mm width |
Annealed ~ 200 HB |
✅ In Stock |
| Blocks |
Custom sizes |
Annealed ~ 200 HB |
✅ In Stock |
| Plates / Sheets |
3mm – 80mm thickness |
Annealed ~ 200 HB |
✅ In Stock |
📊 Chemical Composition – OHNS Steel
OHNS steel is an oil-hardening, non-shrinkage steel alloy with the following typical chemical composition[citation:1][citation:8][citation:10]:
| Element |
Percentage (%) |
Role |
| Carbon (C) |
0.85 – 1.00 |
Provides hardness and wear resistance[citation:8] |
| Manganese (Mn) |
1.00 – 1.20 |
Improves hardenability and toughness[citation:8] |
| Chromium (Cr) |
0.50 – 0.70 |
Enhances wear resistance and hardenability[citation:8] |
| Tungsten (W) |
0.50 – 0.70 |
Improves hardness and red hardness[citation:8] |
| Silicon (Si) |
0.15 – 0.35 |
Deoxidizer and strengthens steel[citation:8] |
| Phosphorus (P) / Sulfur (S) |
0.030 max |
Impurity elements controlled for quality[citation:8] |
⚙️ Key Properties of OHNS Steel
🔧 Dimensional Stability
- Non-Shrinking: Minimal volume change during hardening and tempering[citation:8]
- Low Distortion: Ideal for precision components where size stability is critical[citation:10]
- Hardening Temperature: 780 – 820°C[citation:2]
🛡️ Mechanical Properties
- Hardness: 58 – 62 HRC after proper heat treatment[citation:1]
- Wear Resistance: Excellent wear properties due to tungsten and chromium content[citation:10]
- Cutting Edge: Holds a good cutting edge for tooling applications[citation:8]
🔩 Applications of OHNS Steel
OHNS steel is used across diverse industries for precision tooling applications[citation:4][citation:6][citation:10]:
🔧 Blanking & Stamping Dies[citation:4][citation:10]
🔩 Punches[citation:4][citation:6]
✂️ Shear Blades[citation:4][citation:6]
📏 Gauges & Master Tools[citation:4][citation:8]
🔧 Milling Cutters & Reamers[citation:4]
🛠️ Jigs & Fixtures[citation:6]
🏭 Mould Bases[citation:6]
🔧 Press Tools[citation:6]
🪵 Wood Working Tools[citation:4]
🔩 Thread Cutting Tools[citation:4]
📦 Why Choose Us for OHNS Steel in Mumbai?
🏭 Mumbai Stockpoint
Centrally located for fast delivery across Mumbai.
✂️ Custom Cutting
Cut-to-size services for your specific requirements.
📄 Full Certification
Mill test certificates & test reports available[citation:1][citation:10].
🚚 Quick Delivery
Same-day dispatch for urgent requirements.
📐 Available Forms & Sizes
🔘 Round Bars (6mm – 300mm)
⬛ Flat Bars (10mm – 250mm)
🧱 Blocks (Custom Sizes)
📐 Plates (3mm – 80mm)
✂️ Custom Cut Lengths
✨ Surface Finishes Available
⚫ Hot Rolled / Black
🔘 Peeled / Turned
✨ Precision Ground
💡 Bright Drawn
🧪 Polished
📍 Serving All of Mumbai – From Our Stockpoint
We supply OHNS steel across all Mumbai regions:
Mumbai Central
Andheri
Thane
Navi Mumbai
Borivali
Kandivali
Byculla
Kumbharwada
Kalyan
Dombivli
🔬 Quality Assurance – Every Batch Verified
✔ OES Spectro Analysis
✔ Hardness (HRC/HB) Testing[citation:1]
✔ Dimensional Inspection
✔ Ultrasonic (UT) Testing
✔ EN 10204 3.1 MTC[citation:1]
📍 Mumbai Stockpoint: Sripati Castle Annex-1 C-103, 1st floor, Sripati Castle,
Balwant Kolhatkar Marg, Mumbai – 400004. Centrally located for fast delivery across Mumbai, Thane & Navi Mumbai.
📞 Looking for OHNS Steel in Mumbai? We Supply Across City!
Partner with Jini Enterprise – your trusted OHNS steel supplier in Mumbai.
We supply premium Oil Hardening Non Shrinking tool steel in rounds, flats, blocks & custom sizes – with full certification and quick delivery. Get your quote today!
📧 Email: jinienterprise109@gmail.com
📞 Call Now: +91 865 591 6397