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Tool Steel Bright Bars Manufacturer, Supplier & Exporter – Inox Steel India

Inox Steel India is a trusted manufacturer, supplier, and exporter of Tool Steel Bright Bars in grades D2 and H13, catering to high-precision tooling, die-making, and heavy industrial applications across India, GCC, Middle East, Africa, Europe, and the Americas.

Our tool steel bright bars are engineered for environments where wear resistance, hardness stability, thermal strength, and dimensional accuracy are critical. Through advanced cold drawing, peel turning, polishing, and centerless grinding, we deliver bright bars with consistent metallurgy, tight tolerances, and superior surface finish, ready for demanding tool room and production use.

Table of Contents

What Are Tool Steel Bright Bars & How Are They Manufactured?

Tool Steel Bright Bars are cold-finished bars produced from premium alloyed tool steels, specifically designed to withstand high stress, abrasion, heat, and repeated impact during tooling and forming operations.

Manufacturing Process Flow:

  1. Premium Tool Steel Selection – D2 (cold work) and H13 (hot work) grade billets
  2. Hot Rolling / Forging – Initial bar formation
  3. Cold Drawing / Peeling – Improves straightness and dimensional accuracy
  4. Annealing / Pre-Hardening (as required) – Optimizes machinability and structure
  5. Polishing / Centerless Grinding – Achieves smooth surface finish and roundness
  6. Final Inspection & Testing – Chemical, hardness, mechanical, and dimensional checks

This controlled process ensures tool steel bright bars that provide predictable heat treatment response, long tool life, and reliable performance in production environments.

Key Advantages of Tool Steel Bright Bars

  • High hardness and wear resistance
  • Excellent dimensional stability after heat treatment
  • Tight tolerances (h8 / h9 / h10)
  • Superior surface finish for precision tooling
  • Long service life in high-stress applications
  • Full traceability with certified test reports

Grade Overview & Performance Characteristics

  • D2 Tool Steel Bright Bars
    High carbon, high chromium cold-work tool steel offering exceptional wear resistance and edge retention. Widely used for blanking dies, punches, shear blades, and forming tools.
  • H13 Tool Steel Bright Bars
    Chromium-molybdenum-vanadium hot-work tool steel known for excellent thermal shock resistance and toughness. Preferred for die-casting dies, extrusion tooling, and hot forging applications.

Both grades are supplied with EN 10204 3.1 / 3.2 certification, ensuring material authenticity, consistency, and global compliance.

TOOL STEEL BRIGHT BARS – MASTER TECHNICAL DATA SHEET 

Grades: D2 | H13

Parameter / Property D2 Tool Steel Bright Bar H13 Tool Steel Bright Bar
Material Type High Carbon, High Chromium Cold Work Tool Steel Chromium–Molybdenum–Vanadium Hot Work Tool Steel
AISI / ASTM Designation AISI D2 AISI H13
DIN / EN Equivalent 1.2379 1.2344
IS Standard IS 5517 (TBD equivalent) IS 5517 (H13 equivalent)
Manufacturing Process Cold Drawn / Peeled / Polished / Centerless Ground Cold Drawn / Peeled / Polished / Centerless Ground
Available Forms Round, Square, Flat Bright Bars Round, Square, Flat Bright Bars
Diameter Range (Round) 6 – 150 mm 6 – 150 mm
Square / Flat Size 10 – 100 mm 10 – 100 mm
Standard Length 3 – 6 meters 3 – 6 meters
Custom Cut Lengths As per drawing / requirement As per drawing / requirement
Tolerance h8 / h9 / h10 h8 / h9 / h10
Supply Condition Annealed / Pre-Hardened (on request) Annealed / Pre-Hardened (on request)
Typical Hardness (Annealed) 220 – 255 HB 200 – 235 HB
Achievable Hardness (HRC) 58 – 62 HRC 44 – 52 HRC
Tensile Strength (MPa) ~1900 (hardened) ~1650 (hardened)
Carbon (C %) 1.40 – 1.60 0.32 – 0.45
Chromium (Cr %) 11.0 – 13.0 4.75 – 5.50
Molybdenum (Mo %) 0.70 – 1.20 1.10 – 1.75
Vanadium (V %) 0.80 – 1.20 0.80 – 1.20
Heat Treatment Capability Excellent (Hardening & Tempering) Excellent (Hot Work Q&T)
Wear Resistance Very High High
Thermal Shock Resistance Moderate Excellent
Machinability Fair (Annealed condition) Good (Annealed condition)
Weldability Poor (Special procedures required) Fair (Preheat required)
Surface Finish Bright Cold Drawn / Polished / Centerless Ground Bright Cold Drawn / Polished / Centerless Ground
Testing Performed Chemical, Mechanical, Hardness, Dimensional Chemical, Mechanical, Hardness, Dimensional
Certification EN 10204 3.1 / 3.2, ISO 9001 EN 10204 3.1 / 3.2, ISO 9001
HSN / HS Code 7228 7228
Typical Applications Dies, punches, blanking tools, shear blades Die casting dies, hot forging tools, extrusion dies
Packaging HDPE wrap / Wooden crates / Export seaworthy HDPE wrap / Wooden crates / Export seaworthy

Applications of Tool Steel Bright Bars by Grade

Tool Steel Bright Bars supplied by Inox Steel India are designed for high-wear, high-stress, and high-temperature tooling applications where dimensional stability and hardness retention are essential. Selection between D2 and H13 depends on operating temperature, wear intensity, and impact conditions.

Grade-Wise Application Breakdown

D2 Tool Steel Bright Bars (Cold Work Tool Steel)
Known for excellent abrasion resistance and edge-holding capability.
Typical Applications: Blanking dies, punching tools, shear blades, forming dies, cold extrusion tools, trimming dies.
H13 Tool Steel Bright Bars (Hot Work Tool Steel)
Designed for strength and stability at elevated temperatures.
Typical Applications: Die casting dies (aluminium, zinc), hot forging dies, extrusion dies, hot punches, mould inserts.

Size Range, Dimensional Capabilities & Surface Finish

Size Range & Dimensional Capabilities
INOX Steel India supplies tool steel bright bars in standard and custom sizes to support tool rooms and die manufacturers.

  • Round Bright Bars: 6 mm – 150 mm
  • Square / Flat Bright Bars: 10 mm – 100 mm
  • Standard Lengths: 3 – 6 meters
  • Custom Cut Lengths: As per drawing or machining allowance
  • Dimensional Tolerances: h8 / h9 / h10

These tolerances reduce pre-machining effort and ensure repeatable accuracy in tooling components.

Surface Finish & Machining Performance

  • Cold Drawn Bright Bars: Improved straightness and dimensional control
  • Polished Bright Bars: Smooth surface for precision tooling
  • Centerless Ground Bright Bars: Excellent roundness and size accuracy
  • Peel Turned Bars: Clean surface ideal for tool machining

Machining Benefits:

  • Stable machining in annealed condition
  • Predictable chip formation
  • Reduced finishing time
  • Improved surface finish on die components

Indicative Tool Steel Bright Bar Price (INR & USD)

Grade Approx. Price (INR / kg – Ex-Mumbai) Approx. Price (USD / kg – FOB India)
D2 ₹ 260 – ₹ 360 $ 3.15 – $ 4.35
H13 ₹ 320 – ₹ 450 $ 3.85 – $ 5.40

Prices are indicative and depend on size, supply condition (annealed / pre-hardened), and quantity.

HSN / HS Code

HSN Code (India): 7228
HS Code (Export): 7228.30 / 7228.40

Testing & Quality Assurance

Every tool steel bright bar supplied by Inox Steel India undergoes strict quality control:

  • Chemical Composition Analysis
  • Hardness Testing (HB / HRC)
  • Mechanical Property Testing
  • Dimensional & Straightness Inspection
  • Microstructure Examination (on request)
  • Third-Party Inspection (SGS / BV / TÜV)

All supplies are accompanied by EN 10204 3.1 / 3.2 Mill Test Certificates, ensuring full traceability.

Why Choose Inox Steel India for Tool Steel Bright Bars

Inox Steel India is a dependable manufacturer, supplier, and exporter of Tool Steel Bright Bars, supporting tool rooms, die makers, and heavy manufacturing industries with precision-finished, performance-driven materials. Our D2 and H13 bright bars are trusted for applications where wear resistance, heat stability, and dimensional accuracy directly impact tool life and productivity.

Why Buyers Trust Us:

  1. Manufacturer & bulk stockholder
  2. Grades: D2 (Cold Work) and H13 (Hot Work)
  3. Precision finishes: Cold drawn, polished, centerless ground
  4. Tight tolerances: h8 / h9 / h10
  5. Annealed & pre-hardened supply options
  6. EN 10204 3.1 / 3.2 certification
  7. Competitive INR & USD pricing
  8. Export-ready packaging & documentation

Industries & Applications We Serve

Industry Typical Tooling Applications Preferred Grade
Tool Rooms Dies, punches, shear blades D2
Automotive Press tools, trimming dies D2
Die Casting Aluminium & zinc dies H13
Forging Industry Hot forging dies & punches H13
Plastic & Metal Forming Mould inserts, extrusion tools H13

Each tooling application is supported with correct grade selection, machining guidance, and heat treatment compatibility.

Export Readiness & Packaging

All tool steel bright bars are packed to meet international export standards:

  • HDPE wrapped for corrosion protection
  • Wooden pallets / crates
  • Bar-wise marking: Grade · Size · Heat No · Standard
  • Seaworthy packaging for overseas containers

Export Destinations:
UAE · Saudi Arabia · Oman · Qatar · Nigeria · South Africa · Germany · Italy · UK · USA · Brazil

Ports of Dispatch:
JNPT (Mumbai) · Mundra · Hazira

Get Certified Tool Steel Bright Bars

At Inox Steel India, we supply precision-finished tool steel bright bars designed to deliver long tool life, dimensional stability, and consistent performance.

Inox Steel India

52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004

Email

alloy@inoxsteelindia.in

Phone

+91 9930796690

Frequently Asked Questions (FAQs)

D2 is a cold work tool steel with high wear resistance, while H13 is a hot work tool steel designed to perform under high temperatures.

Yes, both D2 and H13 can be supplied in annealed or pre-hardened condition on request.

D2 can achieve 58–62 HRC, while H13 typically reaches 44–52 HRC.

Yes, custom cut lengths are supplied as per drawing and machining allowance.

Inox Steel India is a leading manufacturer and exporter of tool steel bright bars (D2, H13). High wear resistance, precision finished & export-ready. Supplier near Alankar Cinema, Mumbai.