H-11 (DIN 1.2343)
H-11 hot work tool steel is a 5% chromium hot work steel that is characterized by excellent impact toughness. It contains less vanadium than the widely-used H13 hot work tool steel. This provides for the higher toughness, with some reduction in wear resistance and temper resistance. H-11 hot work tool steel is a deep-hardening, air-hardening steel that exhibits minimal size change during heat treatment. It has good resistance to thermal fatigue cracking (heat checking) and excellent resistance to gross cracking and thermal shock when water cooled in service. H-11 hot work tool steel is recommended for hot tooling applications where maximum resistance to cracking is required. Such applications include hot punches, die casting dies, forging dies, hot shear blades, hot gripper dies, and extrusion tooling.
| Element | Min | Max |
| C % | 0.33 | 0.41 |
| Si % | 0.80 | 1.20 |
| Mn % | 0.25 | 0.50 |
| P % | 0.00 | 0.030 |
| S % | 0.00 | 0.020 |
| Cr % | 4.80 | 5.50 |
| Mo % | 1.10 | 1.50 |
| V % | 0.30 | 0.50 |
H-13(DIN 1.2344)
High hot-wear resistance, high hot tensile strength and toughness. Good thermal conductivity and insusceptibility to hot cracking. Can be water-cooled to a limited extent.Hot-work tool steel for universal use. Pressure casting dies and metal extrusion tools for processing light metals, forging dies, moulds, screws and barrels for plastic processing, nitrided ejectors, hot-shear blades. Suitable for Aluminium Extrusion Die & Aluminium Copper Forging Dies.H13 has high hard resistance and hardness.
| Element | Min | Max |
| C % | 0.35 | 0.42 |
| Cr % | 4.80 | 5.50 |
| Mn % | 0.25 | 0.50 |
| Mo % | 1.20 | 1.50 |
| P % | 0.00 | 0.030 |
| S % | 0.00 | 0.020 |
| Si % | 0.80 | 1.20 |
| V % | 0.85 | 1.15 |
H-21 (DIN 1.2581)
Hot working steel, alloyed with tungsten giving high red strength Suitable for all types of nitriding.
Application:
Hot drawing dies, pressure casting moulds for heavy metals, small die inserts, deburring plates.
| Element | Min | Max |
| C % | 0.25 | 0.35 |
| Cr % | 2.50 | 3.20 |
| Mn % | 0.15 | 0.45 |
| P % | 0.00 | 0.030 |
| S % | 0.00 | 0.020 |
| Si % | 0.15 | 0.40 |
| V % | 0.30 | 0.50 |
| W % | 8.50 | 9.50 |
D-3 ( DIN 2080)
Steel with 12% chromium, wear-resistant with high cutting performance.The use fo this grade is developing towards THYRODUR 2436.
Application:
High efficiency blanking tools for thickness up to 4 mm. Deburring and splitting tools for thicknesses up to 4 mm. Tools for cutting paper and plastic materials, dies and balls for drawing, thread rolling tools, straight and round shears for sheet up to 2mm in thickness, deep-drawing tools, tools for working wood, tools for pressing abrasive materials such as porcelain for example. Slides and moulds for plastic materials. Steel with very high wear resistance.
| Element | Min | Max |
| C % | 1.90 | 2.20 |
| Cr % | 11.0 | 13.0 |
| Mn % | 0.20 | 0.60 |
| P % | 0.00 | 0.030 |
| S % | 0.00 | 0.030 |
| Si % | 0.10 | 0.60 |
D-2 ( DIN 2379)
Steel with 12% chromium alloyed with vanadium.Very good wear resistance and excellent cutting performance.High toughness.Can be nitrided (after secondary quenching).Suitable for vacuum quenching.
Application:
Wheels and combs for thread rolling. Cold extrusion tools. Blanking and stamping tools for high strength materials, mandrels for stepping cold rolling mills, circular shears.
| Element | Min | Max |
| C % | 1.45 | 1.60 |
| Cr % | 11.0 | 13.0 |
| Mn % | 0.20 | 0.60 |
| Mo % | 0.70 | 1.00 |
| P % | 0.00 | 0.030 |
| S % | 0.00 | 0.030 |
| Si % | 0.10 | 0.60 |
| V % | 0.70 | 1.00 |
DIN-2510
| Element | Min | Max |
| C % | 0.90 | 1.05 |
| Cr % | 0.50 | 0.70 |
| Mn % | 1.00 | 1.20 |
| P % | 0.00 | 0.035 |
| S % | 0.00 | 0.035 |
| Si % | 0.15 | 0.35 |
| V % | 0.05 | 0.15 |
| W % | 0.50 | 0.70 |
OHNS ( AISI O1)
Blanking and stamping dies, Punches, Rotary shear blades, Thread cutting tools, Milling cutters, Reamers, Measuring tools, Gauging tools, Wood working tools, Broaches, Chasers.An ideal type oil-hardened steel which is economical and dependable for gauging, cutting and blanking tools as well as can be relied for hardness and good cutting performance.O1 Tool Steel is an electric-furnace melted, oil-hardened, non-shrinking, general-purpose tool steel. It is chemically composed of approximately 0.95 percent carbon, 1.1 percent manganese, 0.6 percent chromium, 0.6 percent tungsten and 0.1 percent vanadium. The hardening temperature of O1 tool steel is between 790 degrees Celsius and 820 degrees Celsius.
| Element | Min | Max |
| C % | 0.90 | 1.05 |
| Cr % | 0.50 | 0.70 |
| Mn % | 1.00 | 1.20 |
| P % | 0.00 | 0.035 |
| S % | 0.00 | 0.035 |
| Si % | 0.15 | 0.35 |
| V % | 0.05 | 0.15 |
| W % | 0.50 | 0.70 |