creating value for the world doosan tool steels · 풀림 담금질 뜨임 quenching + temperung...

CREATING VALUE FOR THE WORLD

DOOSAN TOOL STEELS

GLOBAL LEADER IN POWER & WATER

The ever-faster pace of change necessitates products of ever-higher precision. Doosan has thelatest technologies and ample experience to produce the tool steel that can satisfy this need.What is more, the steady improvement in industrial productivity will always bring tremendoussatisfaction.

DOOSAN HEAVY INDUSTRIES & CONSTRUCTION

DOOSAN TOOL STEELS

CONTENTS

• INTRODUCTION ‥‥‥‥‥‥‥‥‥‥‥ 04

• HOT WORKING TOOL STEEL

- STD61 ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 06

• COLD WORKING TOOL STEEL

- STD11 ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 10

• FORGING TOOL STEEL

- STF4M ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥ 14

• DOOSAN TOOL STEELS ‥‥‥‥‥‥‥‥ 18

03

DOOSAN TOOL STEELS

INTRODUCTION

�


0�

Doosan Proudly Introduces Forged Tool Steel for Improved Productivity

DOOSAN forged tool steels, manufactured by well-experienced manpower together with the most modern facilities under the

strict quality assurance system, are one of the DOOSAN’s principal steel products. These steel products are extremly well

accepted for tough service conditions of hot and cold work tool in ferrous and non-ferrous metal applications, enjoying a good

reputation for their top quality in both domestic and foreign markets.

Hoping you apply DOOSAN steels for your tool works and enjoy all benefits from them.

생산성을 향상시키는 두산중공업의 단조공구강!

冷間 및 熱間工具用鋼으로 개발된 STD61, MASTER1, STD11, STF4M은 최신설비와 풍부한 경험을 통하여 제작되고 있으며 엄격한 품

질보증 체계로 제품의 性質을 보장함으로써 生産性向上과 金型의 壽命을 연장시켜 결과적으로 사용자에게 많은 이익을 드립니다. 또한

매우 우수한 기계적 성질을 가지고 있으므로 熱間作業과 冷間作業에서 보다 정밀한 생산 제품을 만들 수 있으며 국내외 사용자로부터

많은 호응을 받고 있습니다.

STD61, MASTER1, STD11, STF4M으로 귀사의 作業效率이 向上되는 만족감을 가져 보십시오.

DOOSAN TOOL STEELSDOOSAN TOOL STEELS

HOT WORKING TOOL STEEL

STD61

Quality Properties� Clean and High Quality

DOOSAN STD61 has superior cleanliness and high quality with a minimum of nonmetallic inclusions through special

refining and vacuum-degassing processes.

� Homogeneous StructuresDOOSAN STD61 hexahedrally forged by 13,000-ton or 4,200-ton press upsetting and cogging. Its macrostructures and

microstructures are fine and uniform at any cross section.

� Excellent Machinability

� High Strength and Toughness at the elevated temperatures

� High Resistance to Heat-Check and Erosion

品質特性�高淸淨度와 高品質眞空脫가스處理와特殊精鍊工程을적용하여제조되어淸淨度와品質이우수하다.

�均質한 組織4,200톤및 13,000톤프레스로제작함으로써組織이극히均質하다.

�被削性 및 각종 加工性이 良好하다.�高溫强度와 勒性이 良好하다.�耐 Heat-Check, 耐蝕性이 우수하다.

STD61HOT WORKING TOOL STEEL

�


0�

熱處理 (Heat Treatments) 硬度 (Hardness)

풀림 응력제거 담금질 뜨임 Annealing

Annealing Stress Relieving Quenching Tempering HB

750~850℃ 600~650℃ 1000~1050℃ 560~680℃ Max. 229

07


化學成分 (Chemical Compositions)

C Si Mn Cr Mo V

0.32~0.42 0.80~1.20 <0.50 4.50~5.50 1.00~1.50 0.80~1.20

(Unit : Wt.%)

熱處理條件 (Heat Treatments)

(*T : depends on required hardness.)

Time

2hr/inch

StressRelieving

600~650600~700

780~840

80~100

1000~1050

T-30 T-30

*<T>500~680

1hr/inch

30min/inch

30min/inchAir or BlowQuenching

Hardening

15min/inchFurnaceCooling

1hr/inch1hr/inch

AirCooling

AirCooling

AirCooling

3rd Tempering2nd Tempering1st Tempering

First Preheat

Second Preheat

200

0

400

600

800

1000

1200

Temp(℃)


HOT WORKING TOOL STEEL

STD61

707681 673 667 652 643

589

572 468 236 216

707681 673 667 652 643

589

572 468 236 216

Tempering Temperature (℃)

Time (sec)

P

B

M

950℃1000℃1030℃1100℃

MS

A+C

Austenitizing Temperature

Ac3

Ac1

熱處理硬度曲線 (Heat Treatment Hardness Curve)

連續冷却變態曲線 (Continuous Cooling Transformation Curve)

100 200 300 400 500 600 700 8000

1 10 100 1000 10000 100000

0

200

400

600

800

1000

1200

60

55

50

45

40

35

30

25

Har

dnes

s(H

Rc)

Tem

pera

ture

( ℃)

STD61HOT WORKING TOOL STEEL

�


0�09


高溫機械的性質 (High Temperature Mechanical Properties)

高溫引張 (High Temperature Tensile Properties) 高溫衝激 (High Temperature Impact Value)

物理的特性 (Physical Properties)

Temperature (℃) Test Temperature (℃)

Distance from Nitrided Surface (mm)

T.S.

Y.S.

R.A.

570。×3hr

EL.

100 200 300 400 500 600 700 0 100 200 300 400 500 600 700 800RT.

40 30

50

70

90

80

120

160

0

0 0.05 0.10 0.15 0.20 0.25 0.30 0.35

200

400

600

800

1,000

1,200

1,400

Impa

ctVa

lue(

J-m/c

m2 )

Y.S.

,T.S

(Kgf

/mm

2 )

Har

dnes

s(H

v)

20

40

60

80

100

0

機械的性質 (Mechanical Properties)

窒化特性 (Nitriding Characteristics)

온도(℃) Temperature ~100 ~200 ~300 ~400 ~500 ~600 ~700

열팽창계수(10-6/℃)Coefficient of Thermal Expansion

11.3 11.5 12.3 12.7 13.0 13.2 13.6

열전도도(W/m·K) Thermal Conductivity 28.7 28.4 26.8 25.0 23.3 19.6 15.2


COLD WORKING TOOL STEEL

STD11


DOOSAN STD11 has superior cleanliness and high quality with a minimum of nonmetallic inclusions through special


� Homogeneous StructuresDOOSAN STD11 hexahedrally forged by 13,000-ton or 4,200-ton press upsetting and cogging. Its macrostructures and

microstructures are fine and uniform at any cross section.

� Uniform HardnessChemical compositions are adjusted to meet a specific size of tool block, and the hardness is controlled uniformly

throughout the tool block, regardless of its size.

Even after re-sinking, the block can be used under the same conditions as before, and extended service life is assured.

� Excellent Wear Resistance

� High Strength

品質特性�高淸淨度와 高品質眞空脫가스處理와특수精鍊工程을적용하여제조되어製品의淸淨度와品質이우수하다.

�均質한 組織4,200톤및 13,000톤프레스로제작함으로써組織이극히均質하다.

�均質한 硬度가장적절한化學成分에의해어떠한칫수나形狀하에서도硬度가균일하며, 경화능이매우우수하다.

�우수한 耐마모성�高强度

STD11COLD WORKING TOOL STEEL

11


15


熱處理 (Heat Treatments) Hardness

풀 림 담금질 뜨 임 Annealing Annealing Quenching Tempering HB

820~880℃ 1000~1050℃ 150~200℃Max. 229

500~550℃


C Si Mn Cr Mo V

1.40~1.60 <0.40 <0.60 11.0~13.0 0.80~1.20 0.20~0.50

(Unit : Wt.%)


(*T : depends on required hardness.)

Time

600~700

800~850

80~100

1000~1050

150~200500~550

*<T>150~200500~550

1hr/inch

30min/inch

30min/inchAir or BlowQuenching

Hardening

15min/inch1hr/inch

Air cooling

Air cooling

2nd Tempering1st Tempering

First Preheat

Second Preheat

200

0

400

600

800

1000

1200

Temp.(℃)


COLD WORKING TOOL STEEL

STD11


뜨임곡선 (Tempering Master Curve)

칫수 변형율 (Dimensional Change Ratio After Heat Treatments)

100 200 300 400 500 6000

60

64

62

60

58

56

54

52

50

Har

dnes

s(H

Rc)


Longitude

Diameter

1025℃ 10min, Air Cooled

8x12mm

0 100 200 300 400 500 600 700

-0.10

-0.08

-0.06

-0.04

-0.02

0.00

0.02

0.04

0.06

0.08

Dim

ensi

onal

Chan

geRa

tio(%

)

STD11COLD WORKING TOOL STEEL

13


17


機械的特性 (Mechanical Properties)


Tensile Strength

Impact Value

100 200 300 400 500 600

0

1

2

3

4

50

100

150

200

250

Tens

ileSt

reng

th(K

gf/m

m2 )

Impa

ctVa

lue(

Kgf-m

/cm

2 )


온도(℃) Temperature ~100 ~200 ~300 ~400 ~500 ~600 ~700


12.2 12.0 12.3 12.8 13.2 13.4 13.0

열전도도(W/m·K) Thermal Conductivity 23.7 25.0 26.7 26.8 27.1 25.8 -


FORGING DIE STEEL

STF4M


STF4M has superior cleanliness and high quality with

a minimum of nonmetallic inclusions through special


� Homogeneous Structures

STF4M hexahedrally forged by 13,000-ton or 4,200-

ton press upsetting and swaging. Its macrostructures

and microstructures are fine and uniform at any cross

section.

� Uniform Hardness

Chemical compositions are adjusted to meet a

specific size of tool block, and the hardness is

controlled uniformly throughout the tool block,

regardless of its size.

Even after re-sinking, the block can be used under

the same conditions as before, and extended service

life is assured.

� High Thermal Shock Resistance

� Excellent Wear Resistance

� Excellent Machinability

品質特性·高淸淨度와 高品質眞空脫가스처리와特殊精鍊工程을적용하여제조되어製品의淸淨度와品質이우수하다.

·均質한 組織4,200톤및 13,000톤프레스로제작함으로써組織이극히均質하다.

·均質한 硬度가장적절한化學成分에의해어떠한칫수나形狀하에서도硬度가균일하며, 경화능이아주우수하다.

·우수한 耐 열충격성

·우수한 耐 마모성

·우수한 機械加工性높은硬度하에서도機械加工性이우수하다.

STF4MFORGING DIE STEEL

1�


743720

721707

544439397

371300 272

19



C Si Mn Cr Ni Mo

0.45~0.60 <0.40 0.60~1.10 0.70~1.70 1.30~2.50 0.40~1.00

(Unit : Wt.%)

熱處理 (Heat Treatments) 硬度 (Hardness)

풀림 담금질 뜨임 Quenching + TemperungAnnealing Quenching Tempering HRc

750~850℃ 840~880℃ 500~650℃×2times 38.0~43.0


熱處理曲線 (Heat Treatment Curve)

連續冷却變態曲線 (Continuous Cooling Transformation Curve)

743720

721707

544439397

371300 272

743720

721707

544439397

371300 272

담금질곡선 1차 Tempering 2차 Tempering

aircooling

aircooling

oilcooling

1Hr/40mm1Hr/40mm1Hr/50mm

1 10 102

1 10 100 1000 10000(min)

103 104 105 106(Sec)

0

100

200

300

400

500

600

700

800

900

1000

840~880℃ 550~650℃ 520~620℃

P

BMs

A+C

AUSTENITIZING TEMPERATURE : 850℃HOLDING TIME: 15min.

Max

. 50℃

/Hr

Max

. 50℃

/Hr

Max

. 50℃

/Hr

Ac3

Ac1


FORGING DIE STEEL

STF4M

뜨임곡선 (Tempering Master Curve)

단면 경도 균일성 (Cross-Sectional Hardness)

常溫機械的性質 (Mechanical Properties at Room Temperature)

Tempering Temperature (℃ x 1.5hr)

Distance from the Center(mm)

STF4M

STF4

STF4

D社

A社

STF4M

as quenched 100 200 300 400 500 600 700

-100 -200 -150 -100 -50 0 50 100 150 200 250

30

40

50

10

20

30

40

50

60

70

Har

dnes

s(H

Rc)

Har

dnes

s(H

Rc)

STF4MFORGING DIE STEEL

1�


21


비금속개재물 및 청정도 (Cleanliness)

機械的特性 (Mechanical Properties)

열충격 특성 (Thermal Shock Properties)

STF4M STF4 D社 A社

Crac

kD

epth

(μm

)

0

200

400

600

800

1000

1200

Clea

nlin

ess

(d40×

600)

0.044%0.05%

0.15%

0.37%

STF4 STF4M

589

759

245

539

Longi. Crack Test ConditionCircumf. Crack 50℃ 600℃

Water Cooling3,000 Cycles

15sec.


50 100 150 200 250 300 350 400 450 500 550 600 6500

0

20

40

60

80

100

120

140

160

Stre

ngth

(Kgf

/mm

2 )

STF4

STF4M

T.S.

Y.S.


온도(℃) Temperature 상온 ~200 ~400 ~600 ~700


- 12.1 13.1 13.5 13.8

열전도도(W/m·K) Thermal Conductivity 35.8 38.3 37.5 35.8 35.0

DOOSAN TOOL STEELS

Cold Working Tool Steel

DOOSAN TOOL STEELS

DOOSAN TOOL STEELS

Doosan PEFERENCE SPECIFICATION SUPPLIED APPLICATIONSBrand DIN AISI JIS CONDITION

•Die-casting diesSTD61 1.2344 H 13 SKD 61 Annealed •Press dies

•Extrusion dies

MASTER11.2344 H 13 SKD 61

Annealed•Die-casting dies

Improved Improved Improved •Press dies

•HigherSTD11 1.2379 D2 SKD 11 Annealed hardness Mold

•Bumper Mold

Forging Die Steel

1.2714 6F2 6F2•Hammer dies

STF4M Prehardened •Ram diesImproved Improved Improved •Container Tire

Flame Hardening Steel

1.2108 Hitachi’s •Blanking &HFH1 - Annealed Trimming dies

Improved HMD-5 •Cold press dies

Hot Working Tool Steel

DOOSAN TOOL STEELS

Cold Working Tool Steel

DOOSAN TOOL STEELS

DOOSAN TOOL STEELS

Doosan PEFERENCE SPECIFICATION SUPPLIED APPLICATIONSBrand DIN AISI JIS CONDITION

•Die-casting diesSTD61 1.2344 H 13 SKD 61 Annealed •Press dies

•Extrusion dies

MASTER11.2344 H 13 SKD 61

Annealed•Die-casting dies

Improved Improved Improved •Press dies

•HigherSTD11 1.2379 D2 SKD 11 Annealed hardness Mold

•Bumper Mold

Forging Die Steel

1.2714 6F2 6F2•Hammer dies

STF4M Prehardened •Ram diesImproved Improved Improved •Container Tire

Flame Hardening Steel

1.2108 Hitachi’s •Blanking &HFH1 - Annealed Trimming dies

Improved HMD-5 •Cold press dies

Hot Working Tool Steel

GLOBAL NETWORK

Overseas Branches

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DOOSAN POWER SERVICE INDIASuite 31, Vatika Business Centre,3rd Floor, Vatika Atrium, DLF GolfCourse, Road Sector �3,Gurgaon 122002, Haryana, IndiaTel �1-124-4311-3�8

DOOSAN HEAVY INDUSTRIESVIETNAM CO., LTD. [DOOSAN VINA]Dung Quat Economic Zone, BinhThuan CommuneBinh Son District, Quangngai Province,VietnamTel 84-��-�13-001Fax 84-��-�13-008

HAN-VIET HEAVY INDUSTRY &CONSTRUCTION CORP. [HANVICO]km �2, National Highway �,So Dau WardHong Bang District, Haiphong CIty,VietnamTel 84-31-3�1-2�10~11Fax 84-31-3�1-2�14

HANJUNG POWER LTD.P.O. Box 2803, BorokomNCD, Papua New GuineaTel 6��-320-0�2�Fax 6��-321-2�84

Doosan Heavy Industries & Construction Co., Ltd.SEOUL OFFICE 1303-22, Seocho-Dong, Seocho-Gu. Seoul 13�-�20,Korea (C.P.O Box 1826, Seoul Korea)Tel. 82-2-�13-6114, Fax. 82-2-�13-6200

www.doosanheavy.comHEAD OFFICE AND CHANGWON PLANT��, Guigok-dong, Changwon,Gyeongsangnam-do, 641-��2, KoreaTel. 82-��-2�8-6114, �114 Fax. 82-��-264-��1,��2

creating value for the world doosan tool steels · 풀림 담금질 뜨임 quenching + temperung...

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