ASTM A709 steel
ASTM A709 steel
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- Commodity name: ASTM A709 steel
A high-strength, low-alloy structural steel plate utilized primarily in the manufacture of bridges. Gnee 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.
Product introduction
A high-strength, low-alloy structural steel plate utilized primarily in the manufacture of bridges. Gnee 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").
The specifications:
Thickness: 3mm--150mm
Width: 30mm--4000mm
Length: 1000mm--12000mm
Standard: ASTM EN10025 JIS GBTechnical Data
ASTM A709 (Grade 36, 50 and 50W) Chemical Composition
A709 Steel Composition Grade 36 Grade 50 Grade 50W Carbon 0.26% 0.23% 0.2% max Manganese … 1.35% 0.75-1.35% Phosphorus 0.04% 0.03% max 0.03% max Sulfur 0.05% 0.03% max 0.03% max Silicon 0.4% max 0.15-0.4% 0.15-0.5% Nickel … … 0.5% max Chromium … … 0.4-0.7% Copper 0.2% … 0.2-0.4% Vanadium … … 0.01-0.1%
Mechanical Properties 709 Gr 36:Tensile: 58 to 80 ksi
Yield:36 ksi min
Elongation:18% min in 8" 21% min in 2"Mechanical Properties 709 Gr 50:
Tensile: 65 min ksi
Yield: 50 ksi min
Elongation: 16% min in 8" 19% min in 2"Mechanical Properties 709 Gr 50W:
Tensile: 65 min ksi
Yield:50 ksi min
Elongation:16% min in 8" 19% min in 2"Key words:- ASTM A709 steel
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