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ASTM A709 Grade 50W channel steel

ASTM A588 Grade B is a high strength low-alloy structural steel in specification with improved atmospheric corrosion resistance for structural steel shapes such as angles, channel and beams, as well as steel plate and bars. The ASTM A588 Grade B channel steel is intended primarily for using in welded bridges and other structures where savings in weight or added durability is important along with the longer life cycle due to its corrosion resistant properties.

ASTM A588 Grade B channel steel witch is high-strength low-alloy structural steel with 345 MPa minimum yield point to 100mm thick which will be produced comply with ASTMA 588/A 588M Standard. The specification of ASTM A588 Grade B covers high-strength low-alloy structure steel shapes, plates and bars for welded, riveted, or bolted construction but intended primarily for use in welded bridges and buildings.

ASTM A588 Grade B contains Cu, P, Cr, Ni and other elements, these elements give the steel A588 Grade B channel steel a high resistance to the corrosion of atmosphere. A588 Grade B channel steel are applied mostly on weathering construction components and bridge structural parts. 

Mechanical property for ASTM A588 Grade B channel steel:


Thickness(mm)

Yield strength (Mpa) Min.

Tensile strength (Mpa) Min.

Elongation in ≥,%

200mm

50mm

T≤100

345

485

18

21

100<T≤125

315

460

...

21

125<T≤200

290

435

...

21

Chemical composition for ASTM A588GrB channel steel (Heat Analysis Max%)


Main chemical elements composition of A588GrB

C

Si

Mn

P

S

Cu

Ni

Cr

V

0.20

0.15-0.50

0.75-1.35

0.04

0.05

0.40-0.70

0.50

0.40-0.70

0.01-0.10

Shanghai Katalor supply high strength low-alloy structural steel with improved atmospheric corrosion resistance for structural steel, with advanced technology and services, if you need ASTM A588 Grade B channel steel, please give us a message.

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