Andres Driesholten

A709Grade50

A high-strength, low-alloy structural steel plate utilized primarily in the manufacture of bridges. Chapel Steel stocks A709 Grade 36, A709 Grade 50 and A709 Grade 50W. These grades are often specified with Charpy tests referencing the specific zone or lowest anticipated service temperature. The Charpy tests are specified as non-fracture critical, which is a per-heat test (frequency "H"), or fracture critical, which is a per-plate test (Frequency "P"). Bridge steels can also be ordered to the ASSHTO M270 Specification referenced as AASHTO M270 Grade 36, AASHTO M270 Grade 50, AASHTO M270 Grade 50W.

ASTM A709 steel plate is primarily used in the manufacture of bridges.
Leeco Steel stocks A709 steel plate Grade 36, 50 and 50W. These grades are often specified with charpy tests referencing the specific zone, or climatic region, in which the bridge will be in use.
Bridge steels can also be ordered to the AASHTO M270 spec referenced as AASHTO M270 Grade 36, AASHTO M270 Grade 50, AASHTO M270 Grade 50W. AASHTO is the abbreviation for American Association of State Highway and Transportation Officials

specialized in supplying ASTM A709 steel plate in A709 Grade 50. For more information of A709 Grade 50steel plates, please check them in following:

Chemical composition % of the Product analysis of A709 Grade 50

Maximum Diameter

C max, %

Mn max, %

P max,%

S max,%

Si

≤40

≥40

4 [100]

0.23

1.35

0.04

0.05

0.4

0.15-0.40

Type

Elements

Heat Analysis, %

 

 

 

1

Columbium

0.005–0.05

 

 

 

2

Vanadium

0.01–0.15

 

 

 

3

Columbium

0.005–0.05

 

 

 

 

Vanadium

0.01–0.15

 

 

 

 

Columbium plus vanadium

0.02–0.15

 

 

 

5

Titanium

0.006–0.04

 

 

 

 

Nitrogen

0.003–0.015

 

 

 

 

Vanadium

0.06 max

 

 

 

Mechanical properties of grade A709 Grade 50

Grade

Thick
mm

Yield
[MPa]

Min

Tensile [MPa]

Elongtation Min %

reduction

Min

%

HB

Steel Plate

Structural steel

200mm

50mm

200mm

50mm

A709 Grade 50

≤100

345

450min

18

21

18

21

 

 

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