Hot rolled coil went through the pickling process in order to remove the scale. To secure the right material quality for the purpose, rolling continues on until it reaches the right depth.

This is a process of removing the contamination and the rolling oil through mechanical and chemical reaction by passing the cold rolled steel in through an alkaline solution before annealing.

In order to soften the hardened quality (during cold rolling) of the steel, this process secures the right material quality and the processability through the heat treatment of heating → crack → quenching → slow cooling.

For the adjustment of the illumination intensity and the shape of the coil surface (which completed annealing), the elongation percentage would be at 0.3~3.0%.

It is a structural steel for general purposes like a drum washing machine, a refrigerator, furniture, etc. and is used for automobiles Roof, Fender,Hood,Quarter,Oil Pan, Quarter Spring House.

It is classified into deep processing(SCP13), general processing(SCP12) and general purposes(SCP1) according to a manufacturing method and final use. The product used for deep processing and general processing is mainly used for a washing machine, a dehydrator and components of general home appliance, etc. and the one used for general purpose is mainly used for kitchen utensils and containers which are not deeply processed and used for plastic working more than 3 times.

It is classified into general purposes(SCP1), general processing(SCP12), deep processing(SCP13) and TRIP-typed high tensile steel according to a manufacturing method and final use. Products used for SCP1 are commonly used for manufacturing an automobile seat, ones used for SCP12 are used for Rail Lever, Parking Brake, ones used for SCP13 are mainly used major shell plating materials like Fender, Hood, etc., and TRIP-typed high tensile steels are used as a stiffener like a door, bumper, etc.

KS-SCP1-S

It is used for areas which are necessary for bending, molding, simple machining and welding.

Refrigerator, Door, Drum, Furniture, etc.

KS-SCP2-S

It is for machining, which is used for areas where are required for formability much than CSP 1.

Oil Pan of automobile, etc.

KS-SCP3-S

It is for deep machining, which is used for areas where are required for formability much than CSP 2.

Automobile Roof, Fender, Hood, etc.

It is for deep machining and is a non-aging stiffening steel plate that the quality of the material does not change even after passing a certain period.

It is for extra deep machining(drawing), which is applied to automobile parts(components), etc. that need formability much than CSP 3N.

Automobile Quarter, Spring House, etc.

KS-SPP

It has excellent formability because it is manufactured by high titanium, ultra low carbon steel and boron-added low carbon steel, has no an enamel defect like fish scale, pin hole, etc., and thermal strain does not occur even it is burnt at high temperature(800-850˚C).

Washing machine, dehydrator, enamel bathtub, enamel tableware, pan, building exterior materials, etc.

CHSP 45C
CHSP 60C

It has excellent impact resistance due to high yield point and strength because it is manufactured by adding precipitation hardening elements (Nb, Cr, V) to low carbon steel and precipitation hardening elements prevent such precipitates in the steel plate from fine dispersion and movement of dislocation. Applicable to structures which are necessary for high strength.

Automobile Seat, Rail Lever, Parking Brake, etc.

CHSP 35R
CHSP 40R
CHSP 45R

It is solid solution hardening steel, which has excellent formability and is applicable to components or parts for the purpose of improving strength like car panel, etc.

Center Floor, Bracket, etc.

CHSP 35E
CHSP 40E
CHSP 45E

It is steel adding a special element to ultra-low C and N steel and especially has outstanding r and elongation. Applicable to deep machining for outer panel of automobiles.

General outer plate like Fender, Hood, etc.

CHSP 35EB

It is soft steel when molding processing, but its yield strength becomes high when plating baking after machining. With improved dent-proof and impact resistance. Same formability as CHSP35.

CHSP 60DP
CHSP 80TR
CHSP 100DP

It forms 3-phase (ferrite + martensite + residual ustenite) and 2-phase (ferrite + martensite) composition at room temperature. For its yield ratio (YP/TS) is relatively lower than solid solution hardening steel, it is used for stiffening materials with high strength which needs machining.

Door, Bumper Stiffener

CSP1

JS-SPCC

KS-SCP1

A366

ST11

CSP1D

ST12

CSP2

JS-SPCD

KS-SCP2

A619

ST13

CSP3
CSP3N

JS-SPCE
JS-SPCEN

KS-SCP3
KS-SCP3N

A620

ST14

CSP3E

CHSP35R
CHSP35E
CHSP35BH

-
JS-SPFC35

CHSP40E
CHSP40R
CHSP40BH

JS-SPFC40

CHSP45R
CHSP45C

JS-SPFC45
-

CHSP50C
CHSP50DP

-
JS-SPFC50Y

CHSP60C
CHSP60DP

-
JS-SPFC60Y

CHSP80DP

JS-SPFC80Y

CESP1

JS-SPP

KS-SPP

A424

JS-SPCC-8H

KS-SCP1-8H

JS-SPCC-4H

KS-SCP1-4H

JS-SPCC-2H

KS-SCP1-2H

JS-SPCC-H

KS-SCP1-H

A611-A
B,C,D,E