BR390/540HE be applied to other parts that need flanging. The flangeability is
expressed by the hole expansion ratio. Hole expansion ratio is one of criteria
to the formability of steels. It reflects the material’s resistance to local
cracking because of large local stretch in the direction perpendicular to the
hole during hole expansion.
|
Grade
|
C
|
Si
|
Mn
|
Nb + Ti
|
|
BR390/540HE
|
＜0.10
|
＜1.50
|
0.5~2.0
|
0~0.10
|
BR440/590HE steel mechanical properties
|
Grade
|
Thickness
(mm)
|
Tensile strength
(MPa)
|
Yield strength
(MPa)
|
Elongation
A50
(%)
|
Hole expansion rate (%)
|
|
BR390/540HE
|
1.6~6.0
|
≥540
|
≥390
|
≥20
|
≥80
|
BR390/540HE steel has many advantages such
as good formability, high strength, low yield ratio, high initial work
hardening rate, good balance of strength and ductility, etc. It is a solution
to the problem that the high- strength low-alloy steel is not easy to punch.
Dual-phase steel is suitable for manufacturing parts of complex shapes, such as
car wheel discs and other components.
HENAN JOIN-WIN IM/EX CORP Will return you
with high-quality products and complete after-sale service with the lowest
price. we committed to exceed customer's expectation on the basis of quality,
price, and delivery. We sincerely hope to establish long-term cooperation
relationship with you on the basis of mutual benefit, reciprocity and common
development. As BR390/540HE Mechanical and BR390/540HE suppliers, we can supply
BR390/540HE Chemical, BR390/540HE Mechanical and BR390/540HE standard for you
,please contact us ：
Email : pandora@steel-jw.com
Skype : pandora.peng
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