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BISPLATE 80

 

BISPLATE 80 is a high strength, low alloy steel plate with a yield strength three times that of carbon steel and featuring low carbon, excellent notch toughness, good weldability and formability.

 

APPLICATIONS

 

Utilizing the high strength properties of BISPLATE80 allows reduction in section thickness without loss of structural integrity. The following lists some applications where the strength advantage has been realized:

 

l         Transport equipment  (Low loaders)

l         High-rise buildings   (Columns)

l         Mining equipment    (Dump truck trays/Longwall roof supports)

l         Lifting equipment    (Mobile cranes/Container handing equipment)

l         Bridges

l         Storage tanks

l         Excavator buckets

l         Induced draft fans

 

FABRICATION

 

BISPLATE80 is a high strength steel manufactured with a controlled carbon equivalent for optimum weldability.

 

BISPLATE80 can be successfully welded to itself and a range of other steels, provide low hydrogen consumables are used and attention is paid to preheat, interpass temperature, heat input and the degree of joint restraint. Stress relieving can be achieved at 540℃-570℃. Heating above this temperature should be avoided to minimize any adverse effects on mechanical properties. Cold forming can be successfully conducted, provided due account is taken of the increased strength of the steel.

 

MECHANICAL PROPERTIES

PROPERTIES

SPECIFICATION

TYPICAL

0.2% Proof Stress

690 MPa (Min)

750 MPa

Tensile Strength

790-930 MPa

830 MPa

Elongation in 50mm G.L.

18% (Min)

26%

Charpy Impact(Longitudinal) -20℃(10mm×10mm)

40J (Min)   

160J

Hardness

 

255HB

 

CHEMICAL COMPOSITON

THICKNESS(mm)

 

C

P

Mn

Si

S

Cr

Mo

B

CE (ⅡW)

CET

5-16

Maximum

0.18

0.025

1.5

0.25

0.008

0.25

0.25

0.002

0.40

0.29

≥16-80

Maximum

0.20

0.025

1.5

0.25

0.008

0.30

0.25

0.002

0.50

0.35

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