40HRC Pre-hardened

High mirror polish

Plastic injection mold steel

NAK80

40HRC Pre-hardened

High mirror polish

Plastic injection mold Steel

NAK80

Daido Steel Co., Ltd.

Contents

1. Daido Steel: Company profile

2. Shibukawa Plant: Tool steel mother plant

3. High quality mold steel production

4. Features of NAK80

5. Application of plastic mold steels

Daido Steel: Company profile

Daido Steel: Company profile

Name : Daido Steel Co.,Ltd.

Incorporated : Feb. 11950

Founded : Aug.191916

Capital : 37.2 billion yen

Annual Sales : 472 Billion yen (2011)

Number of employees : 3,378

Historical Landmark 1.5t Heroult Furnace

The oldest electric arc furnace in Japan as industrial basis.

Now it has become the

Daidos company

treasure.

Certified as Historical

Landmark by ASM in

1988.

DAIDO STEEL

Company Profile

Tokyo Head office

Head Office

(Nagoya)

Fukuoka Sales Office

Osaka Branch

Chita Plant

Hoshizaki

Plant

Shibukawa plant

Daido Steel Daido Steel Locations

Specialty steels 60%

Electronic and Magnetic Materials

9%

Parts fo Automobile &

Industrial Equipments

22%

Engineering 5%

New Materials 2%

Trading & Service

2%

Sales by business segment

Domestic demand of tool steels

Carbon steels Low

alloy

Cold work die

Hot work die

Forging die

Plastic

High speed

10,700 t/ Month (Apr.Sep., 2011)

Shanghai Nikka Metal Products Co.,Ltd.

Daido PDM (Thailand) Co.,Ltd.

Daido Steel Co.,Ltd.

Pt. Astra Daido Steel Indonesia

Foshan Summit Nikka Mold & Metal Products

Co.,Ltd.

Daido Tienwen Steel

(Guangzhou) Co.,Ltd.

Daido Amistar (M) SDN BHD

Daido Amistar (S) PTE Ltd.

Daido Steel (Shanghai) Co.,Ltd.

Daidos Tool Steels: East Asia Network

Daido Teinwen Steel Co.,Ltd

Daido Steel Co.,Ltd.

(Bangkok Representative Office)

Daido Amistar (Vietnam) Co.,Ltd.

Lung Kee Metal Ltd.

Ming Lee Steel Mould Products Co.,Ltd.

Wonil Special Steel Co.,Ldt.

YDP Steel Co.,Ltd.

Shanghai Nikka Metal Products Co.,Ltd (Dalian Office)

Daido Steel (Shanghai) Co.,Ltd.

Guangchou Branch

Daido Steel (America) Inc.

(Chicago, IL)

International Mold Steel

(Florence, KY)

Shibukawa plant Tool Steels mother plant

Free forging products by Shibukawa plant

Shaft 7%

Other 15%

Aircraft

Power Generation

Ship building

Valve 24%

Other 1%

Disc 5%

Spindle bolts, etc. 10%

Steel Making 4%

Other 34%

Glass roll

Drill collar Jet engine

bearing

Engine

valve

Impeller Compressor disc

Continuous caster

pinch roll

Jet engine

shaft

Shibukawa Plant:

Producing highly reliable

aircraft engine parts

Approval list of civil aircraft engine shafts

BUILDER TYPE NAME OF PARTS MATERIAL

P&W

PW4056 Coupling LPT Shaft Ti-6Al-4V

PW4168 Coupling LPT Shaft Ti-6Al-4V

PW4088 Coupling LPT Shaft Ti-6Al-4V

PW4098 Coupling LPT Shaft Ti-6Al-4V

PW2037 Shaft LPC 17-22A

PW4056 Shaft Front 17-22A

JT9D Shaft Front 17-22A

JAEC V2500 Shaft LP 3Cr-1Mo-0.2V

Shaft Stub 3Cr-1Mo-0.2V

GE GE90 Mid Fan Shaft MA250

CF34-8C Shaft Fan Drive Inconel 718

R/R TRENT800 Shaft LPT 3Cr-1Mo-0.2V

Shaft stub

Shaft LP

High quality mold steels

produced by Shibukawa plant

Melting

Remelting

Forging

High quality mold steel production

Forgings made by

Shibukawa plant

High quality mold steel production

Electric Arc Furnace melting

High quality mold steel production

Vacuum Ladle Refining

High quality mold steel production

Casting

Electric Arc Furnace

Clean steel melting

Ingot Casting (2.2 32.5t)

Ladle Furnace (Vacuum)

Precise control of chemistry and casting temperature

Refining by slag

Remelting Equipment

VARVacuum Arc Remelting ESR Electro Slag Remelting

Electro Slag Remelting furnace

Progressive melting with resisting heat

by direct electricity

Refining by specially blended slag

Clean steel with less non metallic inclusions

Homogenized and fine macro and micro

structure in radial and longitudinal directions

Better surface than that of VAR

Electrode traveling device

Water cool

mold

Melting by

resisting heat

Mother ingot

(Electrode)

Vacuum Arc Remelting furnace

Progressive arc melting and

solidification in evacuated chamber

Reduction of gas content

Clean steel with less non metallic inclusions

Homogenized and fine macro and micro

structure in radial and longitudinal directions

Mother

ingot

(Electrode)

Water cool

mold

Evacuated

Chamber

Evacuating

duct

Melting by arc

High quality mold steel production

Electro Slag Remelting (Vacuum)

High quality mold steel production

Vacuum Arc Remelting

7,000 ton Forging Press (Since 2008.4)

How fast the new machine works.

7,000 t 3,500 t

Grade304N2 Heating temp.1200 degree C

Size750 FE x 1700 H 800 H

../..////.mpg

Free forging in the world

Max.Ingot Weight (t

0

2000

4000

6000

8000

10000

12000

14000

1 10 100 1000

Max

.Fo

rgin

g lo

ad

(t)

Japan Steel

Works

JCFC Mitsubishi

Metal

Kobe

Hitachi

Daido

Cartech (US)

Boehler(Austria)

Saar Shmiede (Germany)

FOMAS (Italy)

Koshuha

Taiheiyo

Tool Steels, Stainless steels High alloys

Low alloys Large sized

Available section of forged block

Thick (mm) 136 - 550

Width (mm 200 - 1200

170 - 550 D

Rolling

Wire rod mill

Large size bar mill

Small size precision bar mill

Available section of rolled bars Thick (mm) 16-90 91-105 106-135

Width (mm 110-140 110-310 205-410

10 - 162 D

E-quality

rolled flat bar

1. Thickness tolerance

2Width tolerance

3. Convex and square-ness

4. Straightness, Bending

Thickness Tolerance

Conventional

+0+

Nominal size

+0+1.5mm +0+0.5mm

2. Width Tolerance

+O+

Nominal size

+0 +34mm +0 +23mm

Conventional

3. Convex & Square-ness

Convex and square-

ness

0.51.5mmside

Large convex on sides

1.0mmside

Slight concave on sides

Conventional

Features of NAK80

Plastic injection mold steels: Classification and chemistry

Classification Daido AISI Hardness Chemistries(%)

brand (HRC) C Ni Cr Mo V Other

SC PXZ 1055 (30HS) Low CMn steel S

SCM PDS3 4140 2630 0.45 1.1 0.25

PX5 P20 3033 0.2 2 0.5 S

SUS G-STAR 420F 3337 0.35 16 1 S

P.H. NAK55 P21-Mod. 3743 0.15 3.0 0.3 Cu,AlS

NAK80 3743 0.15 3.0 0.3 Cu,Al

SKD DH2F H13-Mod. 3842 0.37 5.3 1.3 1 S

P.H. NAK101 630-Mod. 3035 17Cr-4Ni

SKD DHA1 H13 4550 0.39 5 1.3 1

DC53 D2-Mod. 6062 0.9 8 2 0.3

PD613 D2-Mod. 5661 8Cr1Mo

SUS S-STAR 420-Mod. 5053 0.38 13.5 0.1 0.3

Maraging MAS1C 5053 .03 18.5 5 Al,Ti,Co

Pre

-har

den

ed s

teel

H

T s

teel

HTHardened & tempered, P.H.Precipitation hardening

Plastic injection mold steels

Classi-

fication

Hardness

(HRC)JIS AISI Aichi

JFE

SteelKobe Sanyo

13 SC 1055 AUK1 JFE-MD1

KTSM21

KTSM2A

KTSM22

PC55

28 SCM 4140 AUK11JFE-MD3

JFE-MD5KTSM31

SCM-M P20 KTSM3M PCM30

Pre-hardened

steel 33SUS 420

SUS

(F/M)

35 SUS S17400 QHS6

SKD61-M H13

P21PCM40

PCM40S

P21

60 SKD11-M D2 QCM8

Hardened &

tempered57

SUS440C

-M440C

QPD5

SPC5

(P/M)

52

Age hardening

steel50 Maraging

Other

40Non

-Mnagnetic

Stain resistance

40Other

Sumitomo Daido Kosyuha Hitachi Fujikoshi Uddeholm Boehler

SD17

SD18T

KPM1

KPMAX

SD61 PDS3

SD70

SD100PX5 KPM30 HPM7

PLAMAX

IMPAXHH

M200

M201

M238

S-STAR

D-STAR420M HPM38 STAVAX

M303

M310

G-STAR HPM77RAMAX-2

RoyAlloyM315

NAK101 U630 PSL CORRAX N700