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Tungsten carbide STB blanks
STB carbide strips are widely used as wear part, toolmaking, grinder rests and appliance parts, raw materials.
The size for solid carbide STB strips
| Type | T (inch) | W (inch) | L (inch) | Type | T (inch) | W (inch) | L (inch) |
|---|---|---|---|---|---|---|---|
| STB13 | 3/64 | 3/32 | 1 | STB416A | 1/8 | 1/2 | 1 |
| STB13A | 3/64 | 3/32 | 13/16 | STB416B | 1/8 | 1/2 | 1-1/2 |
| STB14 | 5/64 | 1/8 | 1-1/8 | STB416C | 1/8 | 1/2 | 3 |
| STB24 | 1/16 | 1/8 | 1 | STB420 | 1/8 | 5/8 | 6 |
| STB24A | 1/16 | 1/8 | 1 | STB424 | 1/8 | 3/4 | 6 |
| STB24B | 1/16 | 1/8 | 3 | STB428 | 1/8 | 7/8 | 6 |
| STB24C | 1/16 | 1/8 | 1-1/4 | STB432 | 1/8 | 1 | 6 |
| STB24D | 1/16 | 1/8 | 1-1/2 | STB436 | 1/8 | 1-1/8 | 6 |
| STB26 | 1/16 | 3/16 | 6 | STB440 | 1/8 | 1-1/4 | 6 |
| STB26A | 1/16 | 3/16 | 3 | STB448 | 1/8 | 1-1/2 | 6 |
| STB26C | 1/16 | 3/16 | 1 | STB456 | 1/8 | 1-3/4 | 6 |
| STB28 | 1/16 | 1/4 | 6 | STB510 | 5/32 | 5/16 | 6 |
| STB28A | 1/16 | 1/4 | 1 | STB512 | 5/32 | 3/8 | 6 |
| STB28B | 1/16 | 1/4 | 1-1/4 | STB516 | 5/32 | 1/2 | 6 |
| STB28D | 1/16 | 1/4 | 3 | STB516A | 5/32 | 1/2 | 1-1/2 |
| STB210 | 1/16 | 5/16 | 6 | STB520 | 5/32 | 5/8 | 6 |
| STB212 | 1/16 | 3/8 | 6 | STB524 | 5/32 | 3/4 | 6 |
| STB216 | 1/16 | 1/2 | 6 | STB528 | 5/32 | 7/8 | 6 |
| STB220 | 1/16 | 5/8 | 6 | STB532 | 5/32 | 1 | 6 |
| STB224 | 1/16 | 3/4 | 6 | STB536 | 5/32 | 1-1/8 | 6 |
| STB232 | 1/16 | 1 | 6 | STB540 | 5/32 | 1-1/4 | 6 |
| STB34 | 3/32 | 1/8 | 5 | STB544 | 5/32 | 1-3/8 | 6 |
| STB36A | 3/32 | 3/16 | 1-1/4 | STB548 | 5/32 | 1-1/2 | 6 |
| STB38A | 3/32 | 1/4 | 1 | STB556 | 5/32 | 1-3/4 | 6 |
| STB38B | 3/32 | 1/4 | 1-1/2 | STB564 | 5/32 | 2 | 6 |
| STB38D | 3/32 | 1/4 | 5 | STB68 | 3/16 | 1/4 | 6 |
| STB38E | 3/32 | 1/4 | 6 | STB68A | 3/16 | 1/4 | 3 |
| STB310A | 3/32 | 5/16 | 2 | STB610 | 3/16 | 5/16 | 6 |
| STB310B | 3/32 | 5/16 | 3 | STB610A | 3/16 | 5/16 | 3 |
| STB310C | 3/32 | 5/16 | 5 | STB612 | 3/16 | 3/8 | 6 |
| STB312 | 3/32 | 3/8 | 5 | STB612A | 3/16 | 3/8 | 3 |
| STB312A | 3/32 | 3/8 | 6 | STB616 | 3/16 | 1/2 | 6 |
| STB316 | 3/32 | 1/2 | 6 | STB616A | 3/16 | 1/2 | 3 |
| STB320 | 3/32 | 5/8 | 6 | STB620 | 3/16 | 5/8 | 6 |
| STB324 | 3/32 | 3/4 | 6 | STB620A | 3/16 | 5/8 | 3 |
| STB328 | 3/32 | 7/8 | 6 | STB624 | 3/16 | 3/4 | 6 |
| STB332 | 3/32 | 1 | 6 | STB624A | 3/16 | 3/4 | 4 |
| STB336 | 3/32 | 1-1/8 | 6 | STB628 | 3/16 | 7/8 | 6 |
| STB340 | 3/32 | 1-1/4 | 6 | STB632 | 3/16 | 1 | 6 |
| STB344 | 3/32 | 1-3/8 | 6 | STB636 | 3/16 | 1-1/8 | 6 |
| STB348 | 3/32 | 1-1/2 | 6 | STB640 | 3/16 | 1-1/4 | 6 |
| STB356 | 3/32 | 1-3/4 | 6 | STB644 | 3/16 | 1-3/8 | 6 |
| STB44 | 1/8 | 1/8 | 6 | STB648 | 3/16 | 1-1/2 | 6 |
| STB46 | 1/8 | 3/16 | 6 | STB656 | 3/16 | 1-3/4 | 6 |
| STB48A | 1/8 | 1/4 | 1 | STB88 | 1/4 | 1/4 | 12 |
| STB48B | 1/8 | 1/4 | 1-1/4 | STB812 | 1/4 | 3/8 | 6 |
| STB48C | 1/8 | 1/4 | 2-1/4 | STB812A | 1/4 | 3/8 | 3 |
| STB48E | 1/8 | 1/4 | 6 | STB816 | 1/4 | 1/2 | 6 |
| STB410 | 1/8 | 5/16 | 6 | STB816A | 1/4 | 1/2 | 3 |
| STB410A | 1/8 | 5/16 | 1-1/2 | STB816C | 1/4 | 1/2 | 2 |
| STB412 | 1/8 | 3/8 | 6 | STB820 | 1/4 | 5/8 | 6 |
| STB412A | 1/8 | 3/8 | 2 | STB820A | 1/4 | 5/8 | 3 |
| STB412B | 1/8 | 3/8 | 3 | STB824 | 1/4 | 3/4 | 6 |
| STB412C | 1/8 | 3/8 | 6 | STB824A | 1/4 | 3/4 | 3 |
| STB412D | 1/8 | 3/8 | 1 | STB832 | 1/4 | 1 | 6 |
| STB416 | 1/8 | 1/2 | 6 | STB840 | 1/4 | 1-1/4 | 6 |
The grade for carbide rectangular strips
| ISO Grade | Grain um | Density g/cm3 | Hardness HRA | T.R.S N/mm3 | Application |
|---|---|---|---|---|---|
| K20 | Medium | 14.6-15.0 | 90-90.5 | 2200-2400 | High hardness,suitable for rough machining of iron,solid wood,dry wood or nonferrous metal,ceramic and other alloys. |
| K30 | Fine | 14.6-15.0 | 90-90.5 | 2600-2800 | Hight toughness, easy to be brazed without heat preservation.Suitable for rosewood, solid wood, pinewood, and other wood with a lot of stammers. |
| K10 | Ultrafine | 14.6-15.0 | 92.5-93 | 1800-2000 | High hardness, suitable for finish machining of iron, nonferrous metal, ceramic and other alloy,semi-finish machining of hardwood, chipboard, MDF and HDF. It's best to use silver soldering. |
| K40 | Coarse | 13.8-14.2 | 87.5-88 | 2800-3000 | High toughness, difficult to break tooth. It's used specially for finger jointing tools. |
| K40 | Medium | 14-14.2 | 85-86 | 1700-1900 | Mainly used for stamping molds and ceramic molds of electronic parts, corrosion-resistant instruments of petroleum machinery, non-magnetic. |
| K10 | Fine | 14.5 | 91 | 3000-3200 | On the basis of ensuring high bending strength, the wear resistance of cemented carbide is enhanced, the cutting edge is dense and sharp, which is conducive to the flatness of processing and has good welding performance. It is used for food packaging, printing, aluminum foil, metalized film, gardens, textile, leather, plastic, rubber and other mechanical blades. |
| YN15 | medium | 13.7-14 | 85-86 | 1700-1900 | Without cobalt, nickel binder, without magnetic, mainly used for stamping moulds and ceramic die of electronic components. |
Production technics
Application
Main Process flow
Powder milling→ formula according to application requirements → wet milling → mixing → crushing → drying → sieving → adding forming agent → redrying → sieving to obtain cemented carbide powder→ granulating → pressing → forming → low-pressure sintering →blanks→Flaw inspection→Packing→Warehousing
