Tool steels are high quality steels made to controlled chemical composition and processed to develop properties useful for working and shaping of other materials.The carbon content in tool steel may range from as low as 0.1% to as high as more than 1.6%. They are alloyed with elements such as Chromium, Molybdenum,Vanadium Tungsten etc.
At Sunflag Tool Steels are produced through specially designed steel making process via Electric Arc Furnace followed by Ladle Refining and Vacuum Degassing and processed through ESR / VAR for ensuring homogeneous properties &Ultra clean material. Stringent control is practiced during designing of chemical composition and other process parameters during casting, rolling/forging and heattreatment.
Type & application of tool steels:
- Water hardening tool steel(e.g. cold heading, cutting tools, knives, reamers and cutlery etc)
- Shock resisting tool steel (e.g. chisel for hot and cold cutting, chuckiaws, gripper, cold shear, hot shear etc.)
- Cold worktool steel [3 types]:
- Oil hardening cold worktool steel(thread cutting, die blanking, cold-forming, cold trimming, gauges etc.)
- Medium alloy air hardening cold worktool steel (blanking, coining, cold forming, cold swaging, cold trimming
tools, gauges etc.) - High carbon, high chromium cold work tool steel(die inserts, cold—forming, cold shaping, thread roll, cold
trimming, wire drawing etc.)
- Low alloy special purpose tool steel(forging dies, die casing, file cutting, paper cutter, die bending, blanking and
coining etc.) - Mold tool steel(plastic mold)
- Hot work tool steel (die casting dies, hot extrusion dies, hot forging dies, hot swaging, hot trimming, hot shear,
hot gripper etc). - High Speed Steels (Single point cutting tools, broach insert, tap, drill, reamers, milling cutters, saws)
Supply Conditions
From Bloom, lngot or ESR Remelted ingot
| Supply Condition |
| Forged, Annealed & Proof Machined |
| Forged & Annealed |
| Rolled & Annealed |
| Rolled,Annealed,Peeled&Ground |
| As Forged |
| As Rolled |
| Heading #1 | Heading #2 | Heading #3 | Heading #4 | Heading #5 | Heading #6 |
|---|---|---|---|---|---|
| Simple content | Simple content | Simple content | Simple content | Simple content | Simple content |
| Simple content | Simple content | Simple content |
Sizes
| Hot Rolled Rounds | 15 to 250 mm |
| Forged Rounds | 160 to 500 mm |
| Flats/Plates | 150 mm(T) * 450 mm (W) |
| Peeled & Ground | 5 to 100 mm |
| Drawn & Ground | 5 to 34mm |
| Forged Blocks | 350(T)*600(W)*5460(L) |
| Flats/Plates can also be supplied in the following Thickness: |
| 12,14,16,28,32,35,40,42,48,50,55,60,65,70,75,80,85,90,95,100,110,120,130,140,150 |
Grades of Tool Steels
Water-hardening tool steels
Shock-resisting steels
Oil-hardening cold-work steels
Air-hardening, medium-alloy, cold-work steels
High-carbon, high-chromium, cold-work steels
Low-alloy special-purpose tool steels
| AISI | UNS | C | Mn | Si | Cr | Ni | Mo | W | V | Co |
| L2 | T61202 | 0.45-1.00 | 0.10-0.90 | 0.50 max | 0.70-1.20 | – | 0.25 max | – | 0.10-0.30 | – |
| L6 | T61206 | 0.65-0.75 | 0.25-0.80 | 0.50 max | 0.60-1.20 | 1.25-2.00 | 0.50 max | – | 0.20-0.30 | – |
Low-carbon mold steels
Chromium hot-work steels
Tungsten hot-work steels
Molybdenum hot-work steels
| AISI | UNS | C | Mn | Si | Cr | Ni | Mo | W | V | Co |
| H42 | T20842 | 0.55-0.70 | 0.15-0.40 | – | 3.75-4.50 | 0.30 max | 4.505.50 | 5.50-6.75 | 1.75-2.20 | – |
Molybdenum high-speed steels
Tungsten high-speed steels
Intermediate high – speed steels
| AISI | UNS | C | Mn | Si | Cr | Ni | Mo | W | V | Co |
| M50 | T11350 | 0.78-0.88 | 0.15-0.45 | 0.20-0.60 | 3.75-4.50 | 0.30 max | 3.90-4.75 | – | 0.80-1.25 | – |
| M52 | T11352 | 0.85-0.95 | 0.15-0.45 | 0.20-0.60 | 3.50-4.30 | 0.30 max | 4.00-4.90 | 0.75-1.50 | 1.65-2.25 | – |
Testing Facilities at Sunflag Steel
Unique Facilities at Sunflag
Tool steels are high quality steels made to controlled chemical composition and processed to develop properties useful for working and shaping of other materials. The carbon content in tool steel may range from as low as o.2 to as high as more than 1.6% They are alloyed with elements such as Chromium, Molybdenum, Vanadium Tungsten etc.