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Steel Distribution

The WOOHANJUNGYAE Group was established on November, 2002 and has done in business so far and for the big sized steel bar and plate 1st cut process & manufacturing. Especially as for the structural rod and tool bar one, we have much concentrated on both the Quality Promotion and the Cost Reduction and as a result of our much efforts, those items we supplied so far have been treated as the good reputation by the Customers.

With our global network offices and factories scattered over the world and even in China, we had already run so many legal agents as the following: The research center and factories to be operating in Tayae-si of Hubei province, Yangroo-si of Woohan province each and the agents in Beijing and Shimchon are directly managed, and furthermore in Portugal, Europe and Korea.

With the production for steel structure of Hammering work, Big sized on welding work with heat treatment, Mechanical processing work, Mold based frame work, Mechanical precision processing work, we have been eager to meet properly the specification given by and to customers satisfaction.

Sort

Code

Type

Size

Applications

Carbon Steel

 S45C

Forged Bar

￠320~650

Shaft, Coupling, Press And So On

Alloy Steel

SCM440

Forged Bar

￠320~650

Crank Shaft, Arms, Tooth Gear And Others

Tool Steel

SKD61

 Round Bar

￠60~650

Push Dies, Die-Blcok, Heated Press, Die-casting And So On

Pressured Plate

T22~60 X W200~800
Shapes

T125~500 X W300~800

SKD11

 Round Bar

￠60~650

Forming Roll, Cage, Dies, Press Mold, Tooth Tools

Pressured Plate

T19~65 X W200~800

Shapes

 T255~355

SKT4

 Round Bar

￠150~600

Die-Block, Hammer dies, Rem dies
Shapes

T255~655 X W255~555

Chemicals

Country

Code

Components
c Si Mn P S Cr V Mo

WOOHAN
JUNGYAE
(China)

SKD61

 0.37~0.41

0.80~1.20

0.30~0.50

MAX 0.02

MAX 0.01

 5~5.50 0.9~1.1 1.2~1.5

Coefficent of Heat Expansion

Heat Treatment Temp. (℃)

Hardness HRC

Annealing

Quenching

Tempering

Annealing(HB)

Q/T(HRC)

820~870℃
Stow Cooling

1000~1050℃
Air, Gas, Oil Cooling

550~650℃
Air Cooling x2

≤229

≥53

Chemicals

Country

Code

Components
c Si Mn P S Cr Mo V

WOOHAN
JUNGYAE
(China)

SKD11

1.40~1.60

MAX 0.40

MAX 0.60

MAX 0.03

MAX 0.03

11.00~13.00

 0.80~1.20

0.20~0.50

Coefficent of Heat Expansion

Heat Treatment Temp. (℃)

Hardness HRC

Annealing

Quenching

Tempering

Annealing(HB)

Q/T(HRC)

830~870℃
Stow Cooling

1000~1050℃
Air, Gas, Oil Cooling

500~530℃
Air Cooling x2회

≤255

≥58

Chemicals

Country

Code

Components
c Si Mn P S Ni Cr Mo V

WOOHAN
JUNGYAE
(China)

SKT4

0.50
~0.6

0.10
~0.4

0.60
~0.9

MAX 0.03

MAX 0.02

1.50
~1.8

0.80
~1.2

0.35
~0.55

0.05
~0.15

Coefficent of Heat Expansion

Heat Treatment Temp. (℃)

Hardness HRC

Annealing

Quenching

Tempering

Annealing(HB)

Q/T(HRC)

740~800℃

850℃

500℃ Air Coolingx2

≤248

≥42

Characteristics Of Structural Steel

It has more highin mechanical value to be improved by the heat treatment process, and also alloy steel says that carbon steel plus alloy ingredient added in the process and therefore this alloy used in the SHAFT, GEAR, NUT and so on which require the durability more.

Chemicals

Country

Code

Components

C

 Mn Si P S Cr Mo

WOOHAN
JUNGYAE
(China)

S45C

0.42~0.48

0.60~0.90

0.15~0.35

≤0.030

≤0.035

  

SCM
440

0.37~0.43

0.60~0.85

0.15~0.35

≤0.030

≤0.030

0.90~1.20

0.15~0.30