Standard Components For Plastic Mold 2021

STRAIGHT CORE PINS

■ Straight Core Pins

Without tip process

With tip process

Tip shape processing Free designation

Gas vent

Engraving

Shape

Shaft diameter selection

Shaft diameter designation

Shaft diameter selection Shaft diameter designation

Shaft diameter designationShaft diameter designation L dimension designation L dimension designation

Shaft diameter selection

Shaft diameter designation

Shaft diameter selection Concave character (Sequential No.)

Shaft diameter designation Concave character (Sequential No.)

Type

L dimension selection L dimension designation L dimension selection L dimension designation L dimension designation L dimension designation

Cutting facets

Headband

Cutting facets

Headband

Concave character

Convex character

Concave character

Convex character

P.349 (Standard) P.351/353 (Precision/Extra precision)

P.349 (Standard) P.351/353 (Precision.Extra precision)

P.325/333 (SKH51/SKD61) P.327/329 (Others)

P.331/333 (SKH51/SKD61) P.327/329 (Others)

P.335/341 (Standard precision) P.343/339 (Extra precision/ Head JIS)

P.337/341 (Standard precision) P.343/339 (Extra precision/Head JIS)

＊＊ Web–only products

Catalog Page

P.345

P.347

P.355

P.357

P.359

P.355

P.357

P.359

E ＊ Tolerance of L dimension varies depending on the shape.

Tolerance

Head thickness (T)

Type

Material

Group

Shaft diameter (D or P)

Length (L)

+ 5 + 0.1

CPH

CPH–G

–

CPH □□ CPHB □□

+ 0.05 ＊ 0

–

0 –0.005

+ 0.02 0

GW □ –CPH–L GV–CPH–L GW □ –CPHB–L

CPH □ M CPH1MR CPH □ T

CPHB □ M CPHB1MR CPHB □ T

GV–CPHB–L

CPH–L

CPHB–L

–

F–CPH □ ※ Head thickness can be designated

0 –0.02 ＊

CPHL □

CPHBL □

–

Standard

4mm (T4)

+ 5 + 0.1

CPX–G

–

CPX □□ CPXB □□

+ 0.05 ＊ 0

–

–0.01 –0.02

SKH51

+ 0.02 0

GW □ –CPX–L GV–CPX–L GW □ –CPXB–L

CPX □ M CPX1MR CPX □ T

CPXB □ M CPXB1MR CPXB □ T

GV–CPXB–L

CPX–L

CPXB–L

–

F–CPHE □ ※ Head thickness can be designated

0 –0.02 ＊

CPXL □

CPXBL □

–

+ 0.01 0

GW □ –CPV–L GV–CPV–L GW □ –CPVB–L

GV–CPVB–L

CPV–L

CPVB–L

–

0 –0.005

Precision

4mm (T4)

0 –0.01 ＊

CPVL □

CPVBL □

–

+ 0.01 0

CPM–L

CPMB–L

GV–CPM–L

GV–CPMB–L

–

0 –0.003

Extra precision

4mm (T4)

0 –0.01 ＊

CPML □

CPMBL □

–

+ 5 + 0.1

CPP–G

–

CPP □□ CPPB □□

+ 0.05 ＊ 0

–

0 –0.005

+ 0.02 0

CPP–L

CPPB–L

GV–CPP–L

GV–CPPB–L

–

F–CPD □ ※ Head thickness can be designated

0 –0.02 ＊

CPPL □

CPPBL □

–

4mm (T4)

+ 5 + 0.1

CPD

CPD–G

–

Standard

CPD □□ CPDB □□

+ 0.05 ＊ 0

–

–0.01 –0.02

SKD61

+ 0.02 0

CPD–L

CPDB–L

GV–CPD–L

GV–CPDB–L

–

F–CPDE □ ※ Head thickness can be designated

0 –0.02 ＊

CPDL □

CPDBL □

–

+ 0.02 0

CPDJ–L

CPDJB–L

–

–0.01 –0.02

6/8mm (JIS)

0 –0.02 ＊

CPDJL □

CPDJBL □

–

+ 0.01 0

CPZ–L

CPZB–L

GV–CPZ–L

GV–CPZB–L

–

0 –0.005

Precision

4mm (T4)

0 –0.01 ＊

CPZL □

CPZBL □

–

+ 0.02 0

CPK–L

CPKB–L

GV–CPK–L

GV–CPKB–L

–

0 –0.005

F–CPN □ ※ Head thickness can be designated

0 –0.02 ＊

CPKL □

CPKBL □

–

NAK80

+ 0.02 0

CPN–L

CPNB–L

GV–CPN–L

GV–CPNB–L

–

–0.01 –0.02

F–CPNE □ ※ Head thickness can be designated

0 –0.02 ＊

CPNL □

CPNBL □

–

+ 0.02 0

CPG–L

CPGB–L

GV–CPG–L

GV–CPGB–L

–

0 –0.005

F–CPF □ ※ Head thickness can be designated

0 –0.02 ＊

CPGL □

CPGBL □

–

DH2F

+ 0.02 0

CPF–L

CPFB–L

GV–CPF–L

GV–CPFB–L

–

–0.01 –0.02

F–CPFE □ ※ Head thickness can be designated

0 –0.02 ＊

CPFL □

CPFBL □

–

0 –0.005

CPE–L

CPEB–L

E U se the data for reference as the data will change depending on the heat treatment and usage conditions. E

–

+ 0.02 0

■ Material characteristics of straight core pins

is a registered trademark of Uddeholms Co. Ltd. E PROVA400– is equivalent to SUS420J2 upgrading steel from Fujikoshi.Co.

–0.01 –0.02

(Prehardened steel)

CPT–L

CPTB–L

–

NAK80 Precipitation type Prehardened steel Prehardened steel

DH2F SKD61 type Prehardened steel

SUS440C Martensite type stainless steel

0 –0.005

SKH51 High speed tool steel

CPEH–L

CPEHB–L

–

SKD61 Thermal die steel

PROVA400 Prehardened steel

PROVA400 Hardening steel

MAS1C Maraging steel

+ 0.02 0

M Material

Standard

4mm (T4)

Prehardened steel

–0.01 –0.02

Hardening steel

(Hardening steel)

CPTH–L

CPTHB–L

–

0 –0.005

H Hardness HRC

58–60 48–52 37–43 38–42 29–35 50–54 29–35 50–54 56–60 50–54

CPR–L

CPRB–L

–

PROVA 400 (Prehardened steel)

+ 0.02 0

Wear resistance

–0.01 –0.02

CPQ–L

CPQB–L

–

3.5

Ability to be mirror–finished Toughness

0 –0.005

CPRH–L

CPRHB–L

–

PROVA 400 (Hardening steel)

+ 0.02 0

–0.01 –0.02

CPQH–L

CPQHB–L

–

Corrosion resistance

+ 0.02 0

CPW–L

CPWB–L

–

0 –0.005

SUS440C

Density

[g/cm 3 ]

8.2

7.75

7.8

7.75

7.8

7.78

8.02

0 –0.02 ＊

CPWL □

CPWBL □

–

Modulus of longitudinal elasticity

[kgf/mm

2 ]

22300

21000

20500

21000

21900

20400

21900

20400

18600

Physical characteristics

+ 0.02 0

CPY–L

CPYB–L

–

Coefficient of thermal expansion [

0 –0.005

× 10 –6 /K(°C)]

10.1

10.8

12.5

10.8

11.0

10.9

10.2

10.1

0 –0.02 ＊

CPYL □

CPYBL □

–

Thermal conductivity [cal/cm ・ sec ・ °C]

0.051

0.061

0.1

0.061

0.055

0.058

–

MAS1C

+ 0.02 0

Tensile strength

[kgf/mm 2 ]

235

135

128

135

115

196

115

200

215

Mechanical characteristics

CPA–L

CPAB–L

–

319

320

–0.01 –0.02

Charpy impact values [kgf ・ m/cm 2 ]

2.2

–

1.5

0 –0.02 ＊

CPAL □

CPABL □

–

Machining characteristics Poor 1 ⇐⇒ 5 Excellent

1kgf/mm 2 = 9.81N/mm 2 1cal/cm ・ sec ・ °C = 418.6W/m ・ K 1kgf ・ m/cm 2 = 9.81J/cm 2

Conversion formula