A588Gr.A A588Gr.K Weathering Steel
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A588Gr.A A588Gr.K weathering steel
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A588 Gr.A steel plate is American Standard weathering steel plate, also is in accordance with ASTM A588 / a588m-05 standard of atmospheric corrosion resistance of high-strength low alloy steel, 2. 8 mm ~ 200 mm thick a588 series of high-weathering bridge structural steel plate, including A588 gr.a steel plate, a588 GRB, etc. A588 gr.a steel plate adopts Cu, P, Cr and Ni alloys to form a protective layer on the surface of the metal matrix, which has high resistance to atmospheric corrosion. A588 gr.a steel plate adopts Cu, P, Cr and Ni alloy to form a protective layer on the surface of metal matrix, which has high atmospheric corrosion resistance.
A588 Gr.K weathering steel plate with its unique appearance and natural oxidised finish makes it particularly popular for many construction projects. This steel offers greater resistance to atmospheric corrosion than other steels. It resists corrosion from rain, snow, ice, fog and other meteorological conditions by forming a dark brown oxide layer on the metal, which inhibits deeper penetration and saves the cost of painting or rust maintenance.
A588 Gr.A Corten Weathering Steel Chemical Composition
| Grade | C % | Si % | Mn % | P % | S % | Cr % | V % | Ni % | Cu % |
| A588 Gr A | 0.19 | 0.30-0.65 | 0.80-1.25 | 0.04 | 0.05 | 0.40-0.65 | 0.02-0.10 | 0.40 | 0.25-0.5 |
A588 Gr.K Corten Steel Chemical Composition
|
Grades |
C max |
Mn |
P max |
S max |
Si |
Ni max |
Cr |
Cu |
V |
|
A588GR.K |
0.20 |
0.75-1.35 |
0.04 |
0.05 |
0.15-0.50 |
0.50 |
0.40-0.70 |
0.20-0.40 |
0.01-0.10 |
A588 GR.A Corten Steel Material Mechanical Property
| Grade | Thickness | Yield Strength ReH[N/mm2]transv.min |
TensileStrength Rm[N/mm2]transv |
| ASTM A588 GR.A | 0mm-100mm | 340 MPa | 480 MPa |
| 102mm-127mm | 320 MPa | 460 MPa | |
| 127mm-203mm | 290 MPa | 430 MPa |
A588 Gr.K Corten Material Mechanical Property
|
ASTM A588 grade K |
Plates and bars |
Structural shapes |
||
|
|
＜100mm |
≥100-125mm |
＞125-200 |
|
|
Tensile strength min MPa |
485 |
460 |
435 |
485 |
|
Yield strength min MPa |
345 |
315 |
290 |
345 |
|
Elongation min |
21 |
21 |
21 |
21 |
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