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®

BlueTap®Co: the best choice for your taps

: YOUR BEST CHOICE FOR TAPS

WHAT MAKES BLUETAPCO SO SPECIAL

The grindability is enhanced considerably when compared with M35. Indeed, despite a similar volume of carbides, those in Erasteel’s new BlueTapCo are much finer and distributed more homogeneously.

Owing to the removal of large non-metallic inclusions and the complete absence of elongated or clustered carbides, BlueTapCo offers excellent and consistents properties.

BlueTapCo

BlueTapCo

BlueTapCoM35 M35 M35 M35BlueTapCo

Hardness Toughness Grindability Performance

Microst ructure of BlueTapCo (lef t ) & M35 (r ight) , at the same magni f icat ion

HARDNESS

62

63

64

65

66

67

1100 1120 1140 1160 1180 1200 1220

Hardening temperature, °CTempering: 3 x 1h at 560C

Hard

ness

, HRC

IMPACT TOUGHNESS

0

5

10

15

20

25

30

35

40

1150 1160 1170 1180 1190 1200 1210 1220

Hardening temperature, °CTempering: 3 x 1h at 560C

Unnotched test piece 7x10x55mm

Impa

ct to

ughn

ess,

J

M35

BlueTapCo

CONSISTENT HARDNESS, EXTRA TOUGHNESS

wt % C Cr Mo W Co V

BlueTapCo 0,93 4,2 5 6,4 4,8 1,8

Produced through an innovative process, Erasteel’s new BlueTapCo addresses specifically the needs of tap manufacturers by improving the grindability of taps. Its superior characteristics will make BlueTapCo the material of choice for ease of manufacturers, leading to improved usage value in use for your customers.

The stability of the BlueTap® characteristics ensures consistent properties within and across manufactured batches.

®

AN INNOVATIVE PROCESS

BlueTapCo & M35

: ADVANTAGES

WHAT MAKES BLUETAPCO BETTER FOR YOUR CUSTOMERS

BlueTapCo has additional toughness, consistent properties and superior grindability. With these improved characteristics, your taps will have a predictable and assured life making THE difference for your customers.

BLUETAPCO IS THE PERFECT CHOICE FOR YOUR TAPS!

EXCELLENT GRINDABILITY

Grinding is the most costly operation in tap manufacture. Compared with M35, BlueTapCo reduces manufacturing costs through increased productivity and savings in consumables (energy, grinding wheels, etc.).

BlueTapCo grinding times are up to 40% lower when compared with M35. Owing to greater microstructural consistency, manufacturing is more stable & process

parameters can be finely tuned to minimise down time between manufacturing batches. No need to modify your Heat Treatment procedures from those applying to M35: they are also

applicable to BlueTapCo and will release the same hardness levels.

GRINDING RECOMMENDATIONS *

Improve your grindability by reducing cycle time. Final optimization of the grinding operation may be achieved through appropriate grinding wheel selection.

1. Grind more aggressively! a. Increase substantially the feedrate (30%) b. Increase the depth of cut (50%) c. Reduce the number of grinding passes 2. Dress the grinding wheel less frequently 3. Allow time to fine tune the grinding operation for the optimal manufacture with BlueTapCo

* Non contractual recommendations for grinding with conventional abrasives. Erasteel’s technical support team can provide specific recommendations adapted to your own process.

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