6 Step Tool Selection

(continued)

Select the recommended Cutting Speed (vc)

5

and Coolant recommendations according to

the material to be machined.

Example: 5

Speed range for XDLW090408SR-D X400

for Facing in Alloyed Steel (Rm 950-

1200 N/mm2 and 280-355 HBN)

70 – 150 m/min

Material specifications can be found in

the Materials Reference Charts

pages D1 - D35.

UNS Commercial UK: Sweden: USA: Germany: Germany: France: Italy: Spain: Japan:
Number Name BS,ENSSAISI/SAEWnrDINAFNORUNIUNF JIS
Alloyed Steels
T4 / Z80WKCV18050401BT4T41.3255S18.1.2.5Z80WKCV18050401X78WCo1805KUHS18.1.1.5SKH3
Z2NKDT18-10-51.2709X3NiCoMoTi18.9.5Z2NKDT18-10-5
Z38CDV5-31.2367X40CrMoV53Z38CDV5-3Z155CVD12-1
Stainless Steels
50UNS S20910
202284S162021.4371X3CrMnNiN18-8-7Z8CMN18.08.05
215
284
30123313011.4310X12CrNi17-7Z12CN17.07X12CrNi17 07F.3517SUS301
302302S3123303021.4319X12CrNi18-9Z10CN18.09X10CrNi18 09F.314
303303S21, 58M23463031.4305X8CrNiS18-9Z10CNF18.09X10CrNiS 18.09F.3508SUS303
304304S31, 58E2332/23333041.4350X5CrNi18-9Z6CN18.09X5CrNi18 10F.3551;F.3541;F.3504SUS304
305305S193051.4312X8CrNi18-12X8CrNi1910F.3503
311
315
316316S33, 58J23433161.4401X5CrNiMo17-13-3Z6CND19.12.03X5CrNiMo1713F.3543SUS316
317317S163171.4449X5CrNiMo17-13
3183181.4583X10CrNiMoNb18-12Z6CNDNb17.13BX6CrNiMoNb17 13
320
3216Technical information can be found at the end UNS S32100321S12, 58B23373211.4541X10CrNiTi18-9Z6CNT18.10X6CrNiTi18 11F.3553;F.3523SUS321
325
326of each selected family which contains calculation
32923243291.4460X8CrNiMo27-5Z5CND27.05AZSUS329L
331formulas, mounting instructions, etc…
332
33470334X8CrNiAlTi20-20
347UNS S34700 347S17, 58F23383471.4550X10CrNiNb18-9Z6CNNb18.10X6CrNiNb18 11F.3552;F.3524SUS347
348UNS S348001.4546X5CrNiNb18-10Z10CrNiNb18 10
394
403403S1723014031.4000X7Cr13Z6C13X6Cr13F.3110SUS403
409409S194091.4510X6CrTi12Z6CT12X6CrTi12
410410S21, 56A23024101.4006X10Cr13Z10C14X12Cr13F.3401SUS410
416416S212380416001.4005X12CrS13Z11CF13X12CrS13F.3411SUS416
420420S3723034201.4021X20Cr13Z20C13X20Cr13F.5261
425
430430S15, 6023204301.4016X8Cr17Z8C17X8Cr17F.3113SUS430
431431S29, 5723214311.4057X22CrNi17Z15CNi16.02X16CrNi16F.3427SUS431
433
434434S1723254341.4113X6CrMo17Z8CD17.01X8CrMo17SUS434
441
444UNS S4440023264441.4521Z3CDT18 02

452 455 UNS S45500

Speed vc (m/min)

--Wear Resistance+
7792VX Series
Speed min. - max.
Coolant Recommendation
PVDCVDPVDCVD Uncoated CVD
Recommended Possible X GradeX GradeStandardStandard Micrograin Standard
MaterialsRm and X400X500SP6519SC3025 GH2 SC6525
ISOHardness
<600 N/mm 2
Unalloyed<180 HBN120 - 260130 - 295140 - 370
Steel<950 N/mm 2   
<280 HBN105 - 230115 - 260120 - 325
700-950 N/mm295 - 200100 - 210100 - 230105 - 290
P200-280 HBN
Alloyed950-1200 N/mm2    
Steel280-355 HBN70 - 15075 - 16075 - 17580 - 210
1200-1400 N/mm245 - 9550 - 10050 - 11050 - 140
355-415 HBN
Austenitic + Ferritic115 - 250115 - 270
Stainless300 series
SteelMartensitic  
M400 series100 - 220105 - 235
PH StainlessRefractory 50 - 110 50 - 120
P.H.
Grey140 - 295150 - 395 145 - 390
GG-Ft
K Cast IronSpheroidal-Ductile  110 - 240120 - 335   115 - 305
GGG-FGS
Malleable100 - 220105 - 275
GTS - MN/MP
Aluminium & Alloys305 - 2130400 - 2745
Aluminium < 16% Si 116 HBN
N & Alloys
Aluminium + Silicon245 - 1760295 - 2135
> 16% Si 92 HBN
Iron Based23 - 4823 - 55
HighCobalt Based21 - 4422 - 48
S Temperature
AlloysNickel Based24 - 5125 - 55
Titanium Based35 - 7336 - 79
Hard Steel
>1400 N/mm245 - 95
Hard >415 HBN
H MaterialsChilled Cast Iron

>1400 N/mm2 35 - 80 > 400 HBN

7792VX

Technical Information

The advantages of face milling and7792VXRound Insert Tools
producing cavities with Stellram’s high
feed face mill are numerous.• Cutting forces• Tangential
predominantlyforces act
The unique design of the insert, approachaxialaround the

angle and the cutter body ensure the radius

  • Relationship
cutting forces are predominantly directedbetween cutting• Leads to vibration
in the axial direction. The example shownedge and work pieceand damage of
with a round insert tool shows complexis at its most stable.the cutting edge
forces which result in high levels of• Results in high feed• Leads to reduced
vibration and damage to the cutting edge.rates and consistentfeed and lower productivity

tool life.

The 7792VX machines with a

constant volume of chip throughout all7792VXSide wall Centre clearance
aspects of producing cavities and• Constant cutting
produces a side wall that is close tosection (chip volume)
profile.irrespective of
position in cavity.
Round insert tools have increasing chip• Producing a close
volume through the process.to profile side wall.Round insert
  • Near-square side walls
  • Greater surface contact.

possible.

  • Increased chip section for side

wall machining.

  • Vibration in corners.
  • Undulating side wall cusps.

A74 www.kennametal.com