Die Steel SKD61 High Speed Steel SKH51
STRAIGHT CORE PINS –SHAFT DIAMETER (D) SELECTION / L DIMENSION DESIGNATION TYPE–
Part Number – L – (KC/WKC … etc.) CPD–L1.6 – 72.35 – HC3.0 CPM–L3 – 8.00– TC2.0
T Tolerance
High Speed Steel SKH51
Alterations
M Material
H Hardness
Type
Group
D L
Alteration details D P.323
Die Steel SKD61
Alterations Code
Spec.
Alterations Code
Spec.
CPD–L
SKD61
48–52HRC
Head diameter change HC = 0.1mm increments E D ≦ HC ＜ H, D ≧ 0.3 E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
Single flat cutting D/2 ≦ KC ＜ H/2 D ≧ 0.6 Two flats cutting D/2 ≦ WKC ＜ H/2 D ≧ 0.6
NAK80
KC
–0.01 –0.02
KC － 0.01 0
HC
CPX–L
SKH51
58–60HRC
DH2F
+ 0.02 0
WKC
Standard
Head diameter change (precision) HCC = 0.1mm increments E D + 0.5 ≦ HCC ＜ H–0.3, D ≧ 0.6 Head thickness change TC = 0.1mm increments (Dimension L remains unchanged) E 4 － TC ≦ Lmax. － L Relief under the head (No need for plate chamfering) D ≧ 0.6
0 － 0.01
About Designation Unit for Key Flat Cutting
WKC
HCC
CPP–L
SKD61
48–52HRC
Pre-hardened Steel Hardening Steel
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only D ≧ 0.6 KAC ＜ KBC ＜ H/2 Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2 D ≧ 0.6
0 –0.005
PROVA400 Pre-hardened Steel Hardening Steel
KAC KBC
D TC 0.3 ≦ D ＜ 0.8 2.0 ≦ TC ＜ 4.0 0.8 ≦ D ≦ 20 1.5 ≦ TC ＜ 4.0
－ 0.01 0
－ 0.01 0
0
TC
KAC
KBC
CPH–L
SKH51
58–60HRC
TC
－ 0.02
R ≦ 0 . 3
4
Stainless Steel SUS440C
(1) To align the key flat
with the shaft diameter
RKC
CPZ–L
Unit of designation 0.05mm increments possible
TRN
SKD61
48–52HRC
RKC － 0.01 0
MAS1C
+ 0.01 0
0 –0.005
Precision
Numbering on the head Range of designation and Designation method: D P.324 E Available when H ≧ 2 X Combination with SKC not available. Total length tolerance alteration L + 0.01 0 c + 0.005 0 (L designation in 0.005mm increments possible) E Available when 1.5 ≦ D ≦ 5 E Available when CPM － L Gas vent machining GS/GB = 1mm increments E 2 ≦ GS ≦ 10 GS + 2 ≦ GB ≦ 30 E Available when D ≧ 2 L － GB ≧ 10 How to order D P.324
Three flats cutting D/2 ≦ DKC ＜ H/2 D ≧ 0.6 Four flats cutting D/2 ≦ SKC ＜ H/2 D ≧ 0.6
CPV–L
0 － 0 . 02
T ＝ 4
A15
DKC
SKH51
58–60HRC
4mm
NHC
0 － 0.01
8
DKC
DKC
L
JIS (6/8mm)
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
+ 0.01 0
0 –0.003
Extra precision
CPM–L
SKH51
58–60HRC
SKC
Free Designation
－ 0.01 SKC 0
LKC
L
■ Standard/Precision type
■ Extra precision type
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 D ≧ 0.6 0 ＜ AG ＜ 360 AG = 1° increments Three flats cutting at 120° D/2 ≦ KTC ＜ H/2 D ≧ 0.6
0 ° KGC ± 0.5 AG °
D (P) –0.01 –0.02 D (P) 0
L 0.01mm increments
L 0.01mm increments
KGC
Part Number
Part Number
H
H
GVC
Type
D
Type
D
–0.005
GS
GB
L
120 ° 120 °
D (P) 0
CPX–L CPH–L CPV–L
0.5
7.00– 60.00
2
–0.003
120 °
E Similar products with GVC alteration "Gas release core pins" D P.347 – 350
KTC
7.00– 60.00
0.3 0.4 0.5
2
0
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
KTC
－ 0.01
Shaft Diameter / Total Length Designation Free Designation Total Length Designation Total Length Designation
3
0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
3
1.6 1.7 1.8 1.9 2
4
1.6 1.7 1.8 1.9 2
7.00–100.00
4
Tip Process
2.5
2.5
7.00–100.00
5
5
Engraving
3
3
6
6
Gas Vent
CPM–L
CPD–L CPX–L CPP–L CPH–L CPZ–L CPV–L
3.5 4
3.5 4
7
7
7.00–120.00
4.5
4.5 5
8
8
7.00–120.00 Only CPH–L, CPV–L 7.00–150.00
5
5.5 6
9
5.5 6
6.5 7
9
10
8
6.5 7
10
11
8.00–100.00
8
10
11
15
8.00–120.00 Only CPH–L, CPV–L 8.00–150.00
10
13
15
18
13
18
Part Number – L CPD–L1.6 – 72.35
Order
16
21
20
25
Delivery Quotation
325
326
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