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High strength no-gap atomic steel

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High strength no-gap atomic steel

The cold rolled IFHS steel can be divided into exposed panel, structural part and reinforcing part

according to its application. The cold rolled IFHSproduced in LY Steel with good deep drawing and strength as well as good weldability and coating performance, is widely applied to the manufactur-ing of complex auto structural parts, reinforcing part and exposed panel.

High strength no-gap atomic steel
High strength no-gap atomic steel

Product Dimension of High strength no-gap atomic steel

Nominal thickness: 0.25~2.5mm;

Nominal width:810~1585mm.

Steel gradesCategoryApplication
LG170P1、HC180YDrawing or deep drawingThis range of product is applied to the manufacturing of complex auto structural parts, reinforcing part and exposed panel
LG210P1、HC220YCommon use or drawing
LG250P1、HC260Y Structural or common use

Mechanical property of High strength no-gap atomic steel

GradeRp0.2,MPaRm,MPa
Elongation after fracture A50,%≥
r90n90
Nominal thickness,mmNominal thickness,mm
h≤0.50.5<h≤0.70.7<h≤2.5h≤1.51.5<h≤2.5≥0.19
HC180Y180~240≥340≥30≥32≥34≥1.7≥1.5≥0.17
HC220Y220~280≥360≥28≥30≥32≥1.5≥1.3
HC260Y260~320≥380≥24≥26≥28
GradeRp0.2,MPaRm,MPaElongation after fracture A80,%r90n90
Nominal thickness,mmNominal thickness,mm
h≤0.50.5<h≤0.70.7<h≤2.5h≤1.51.5<h≤2.5
HC180Y180~240≥340≥30≥32≥34≥1.7≥1.5≥0.19
HC220Y220~280≥360≥28≥30≥32≥1.5≥1.3≥0.17
HC260Y260~320≥380≥24≥26≥28

1) R P0.2 should be adopted when the yielding is not obvious,
otherwise use ReL.
2)Transverse sample should be taken
3) The supplier can
not provide r and n value if the processing performance can be guaranteed, the supplier can provide r and n value
once both parties agreed.

Surface quality of High strength no-gap atomic steel

 GradingCode Features
High-grade surface finishingFB( 03)A few defects without affecting formability and coating adhesion are allowable on surface, eg. Slight scratches, identation, pitted spot, roll mark and oxide color.
Higher-grade   surface finishingFC( 04)None of any visible obvious defect on the better one of two surfaces, the other side has to reach FB requirement at least.
Superior surface  finishingFD(O5)None of any defect which affected the surface quality after painting or electro-galvanizing on the better one of two surfaces, the other side has to reach FB requirement at least.

 

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