A tool steel hex bar is a solid long product with a hexagonal (six-sided) cross section, manufactured from alloy tool steels designed for cutting, forming, and shaping operations. The hexagonal profile provides positive spanner grip and ease of handling during machining and assembly of tooling components.
Tool steel hex bars are produced from tool steel billets using hot rolling, forging, or cold drawing, followed by controlled annealing or hardening and tempering to achieve the required hardness and toughness.
Inox Steel India is a manufacturer, supplier, and exporter of tool steel hex bars, supplying to tooling, die-making, and industrial manufacturing sectors across India, GCC countries, the Middle East, Africa, Europe, and North & South America.
Tool steel hex bars are supplied in D2 and H13 grades, manufactured in accordance with ASTM A681 and DIN specifications. These grades are selected for applications requiring high hardness, wear resistance, and thermal stability, depending on cold-work or hot-work operating conditions.
With controlled heat treatment and dimensional processing, tool steel hex bars supplied by Inox Steel India offer consistent mechanical properties, uniform across-flat dimensions, and suitability for precision tooling applications.
These properties make tool steel hex bars suitable for die-making, moulds, punches, and industrial tooling applications.
Tool steel hex bars are supplied in the following grades:
D2 Tool Steel – High carbon, high chromium cold-work tool steel for wear-resistant applications
H13 Tool Steel – Hot-work tool steel with good thermal fatigue and shock resistance
Materials are supplied as per ASTM A681 / DIN 1.2379 (D2) / DIN 1.2344 (H13) specifications.
Refer to the approved Master Technical Data Sheet for chemical composition, mechanical properties, and standard hex bar sizes in mm.
Proper grade selection ensures tool life, dimensional stability, and operational reliability.
In India, tool steel hex bars are widely used by tool rooms, die manufacturers, mould makers, and precision machining units, particularly in industrial regions such as Pune, Bengaluru, Chennai, and Ahmedabad.
Export demand is driven by automotive tooling, die casting, and industrial manufacturing sectors requiring ASTM and DIN-compliant tool steel products.
Service Use: Cold-work tooling requiring high wear resistance.
Typical Applications: Dies, punches, cutting tools, blanking tools, shear blades.
Industry Sectors: Tool Rooms | Press Shops | Industrial Tooling
Service Use: Hot-work tooling and elevated temperature applications.
Typical Applications: Die casting tools, forging dies, extrusion tools, hot shear blades.
Industry Sectors: Die Casting | Forging | Automotive Tooling
Tool steel hex bars are supplied in standard metric hex bar sizes as per ASTM and DIN tolerances.
| AF Size (mm) | Approx. Weight (kg/m) |
| 8 | 0.43 |
| 10 | 0.68 |
| 12 | 0.98 |
| 16 | 1.74 |
| 20 | 2.72 |
| 25 | 4.25 |
| 30 | 6.11 |
| 40 | 10.86 |
| 50 | 16.90 |
| 60 | 24.60 |
Weights are indicative and may vary based on tolerance and heat-treatment condition.
| Grade | Approx. Price Range (INR / kg) |
| D2 Tool Steel Hex Bar | ₹ 220 – ₹ 320 |
| H13 Tool Steel Hex Bar | ₹ 260 – ₹ 380 |
Prices depend on size, heat-treatment condition (annealed / hardened & tempered), finish, quantity, and prevailing market conditions.
HSN Code: 7228
Material can be supplied with EN 10204 3.1 certification on request.
Whether you require D2 hex bars for cold-work tooling or H13 hex bars for hot-work applications, our team will assist with grade selection, pricing, and delivery schedules.
Standard across-flat sizes range from 8 mm to 60 mm. Other sizes can be supplied on request. Yes, tool steel hex bars can be supplied in annealed or hardened & tempered condition. The applicable HSN code is 7228. Yes, custom cut lengths are available as per requirement. Material can be supplied with EN 10204 3.1 test certification on request. What are the standard hex bar sizes in mm?
Are heat-treated tool steel hex bars available?
What is the HSN code for tool steel hex bars?
Are custom cut lengths available?
Is test certification provided with supply?