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Fernite special precision products illustrate our uniquely comprehensive engineering
capability, from light components to heavy duty blades and slideways, both manufactured
by combining the latest CNC machine technology together with the experience of our personnel. Our associated stockholding operation provides an ideal source of readily available strip and sheet materials. | |
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| Fernite slideways are accurately machined on a long bed CNC machining centre, and after carefully controlled heat treatment on our own premises are precision ground in matched sets to the standards of accuracy and surface finish essential for the many different and demanding applications. | Fernite blades are manufactured in quality tool steels selected and tempered to meet the specific application, wear or shock resistance, cold or hot shearing. Illustrated are blades with mechanically secured tungsten carbide inserts which are used to cut silicon iron sheet and strip. |
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Fernite special products are manufactured from steel strip employing laser cutting
or precision presswork. Our associated stockholding operation holds an extensive range of
sizes and qualities which, combined with our manufacturing facilities, enable us to offer
a prompt and competitive service. 
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 Fernite blades are made exclusively from "Chipper Steel", a steel type
developed for the heavy duty application of producing wood chips from primary timber. |  We make rotary cutters for a diverse range of applications in materials specially selected for optimum performance. For example metal slitting and cut-off blades for wire braided hydraulic hose. |
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| The grade of steel selected is subject to the application, our extensive experience is
available to you and our technical staff will be pleased to advise you. Heat treatment is carried out in our own plant, the optimum combination of hardness and strength being dependent upon the steel specification and knife application, which is achieved by careful control of the tempering cycle. We are also able to advise on a range of specialised coatings for your specific application. | |
Listed below is a selection of the regular steel grades used together with their international equivalents:
| STEEL TYPE |
B.S. |
AISI SAE |
W-NR |
AFNOR |
JIS |
EUROPEAN STANDARD Nr. / Designation |
| High Speed Steel 18%W | BT 1 | T1 | 1.3355 | Z80 WCV | SKH2 | High Speed Steel 6.4%W | BM 2 | M2 | 1.3343 | Z85 WDCV | SKH51 | High Carbon High Chrome | BD 2 | D2 | 1.2379 | Z160 CDV12 | SKD12 | Tool Steel | BA 2 | A2 | 1.2363 | Z100 CDV 5 | SKD 12 | Hot Work Tool Steel | 3BH 13 | H13 | 1.2344 | X40 Cr Mo V5 | SKD 61 | Stainless Steel | 301 S 21 | 301 | 1.4310 | Z12 CN 17.07 | SUS301 | 1.4310 / x 10 Cr Ni 18-8 | Stainless Steel | 410 S 21 | 410 | 1.4006 | Z12 C 13 | SUS410 | 1.4006 / x 12 Cr 13 | Stainless Steel | 420 S 37 | 420 | 1.4021 | Z20 C 13 | SUS420J1 | 1.4021 / x 20 Cr 13 | Stainless Steel | 420 S 45 | 420 | 1.4029 | Z30 C 13 | SUS420J1 | 1.4029 / x 29 Cr S13 | Stainless Steel | 440B | 1.4112 | Z85 CDMV | SUS 440B | 1.4112 / X 90 CrMoV18 | Carbon Spring Steel | CS95 | 1095 | 1.1274 | XC 90 | SK4 | Carbon Spring Steel | CS80 | 1085 | 1.1269 | XC 75 | SK5 |
We also supply blades in sintered metal or inlaid with steel or tungsten carbide
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