ASTM A709 Gr.50 high strength bridge steel plate

Description: A709Gr50 high strength bridge steel plate has a good strength-to-weight ratio, which is beneficial for bridge and bracing applications. A709 Grade50 steel implements ASTM A709/A709M standard, ASTM A709 Grade50 carbon steel is the standard specification fo...

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A709 Grade 50 Steel Description

A709Gr50 high strength bridge steel plate has a good strength-to-weight ratio, which is beneficial for bridge and bracing applications. A709 Grade50 steel implements ASTM A709/A709M standard, ASTM A709 Grade50 carbon steel is the standard specification for bridge structural steel. The enhanced strength of A709 Gr.50 steel allows thinner sections and produces the same support in heavy use of mild steel. A709 Grade50 is widely used in building steel structures, construction machinery and other steel structures, such as building steel structures, construction machinery, mining and mountain machinery, trucks, bridges, pressure vessels, etc., especially for those requiring good welding Components for construction and construction machinery that are durable and resilient. ASTM A709 Gr50 carbon steel covers high strength, low permissible structural steel profiles, plates and bars.

The grade of A709 Gr.50 carbon and low-alloy steel indicates: "A": indicates American standard alloy steel; "709": indicates that the minimum yield strength of the steel plate is 709MPa; "Gr": indicates the abbreviation of "Green"; "50": indicates the grade of the steel plate. The carbon content (melting analysis) of A709Gr50 steel plate is generally not more than 0.20%, the total content of alloy elements is generally not more than 2.5%, and the yield strength is not less than 295MPa. It is a low-alloy steel with good impact toughness and weldability.

Cutting process: The ASTM A709 Gr50 carbon and low-alloy steel plate shall be inspected in accordance with the cutting process after the performance indicators meet the requirements. It can be cut and processed and the drawings can be blanked. Generally, when the thickness of the steel plate is not more than 20mm, the method of CNC plasma cutting or CNC laser cutting is preferred. If the thickness of the steel plate is If it is larger than 30mm, CNC flame cutting is usually selected, which can control the cutting accuracy and time.

A709 Gr.50 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Heat treated : 1491°C - 1375°C

A709 Grade 50 Steel Datasheet

Product Name	A709 Gr50 Carbon and low alloy Steel
Length	1m-14m or as required
Width	1000mm-4000mm or as required
Thickness	8mm-150mm or as required
Standard	ASTM
Technique	Hot rolled
Surface Treatment	Blackface
Thickness tolerance	±1mm
Material	A709Gr36, A709Gr50, A709Gr50S, A709Gr50W
Application	It is used in machine parts and engineering components, measuring tools, cold and hot molds, tools etc.
MOQ	25tons.We also can accept sample order.
Shipment time	Within 15-20 workdays after receiving deposit or L/C
Export packing	Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity	50,000 tons/year

A709 Grade 50 Steel Chemical composition

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.23	0.4	1.35	0.04	0.05
Mo	Al	Cu	Nb	Ti	V	Ce
			0.005-0.05	0.006-0.04	0.01-0.15
N	Co	Pb	B	Other
0.003-0.015

A709 Grade 50 Steel Mechanical Properties

HSLA ASTM A709 Bridge Steel Plate Mechanical Properties:
ASTM A709	Yield Strength	Tensile Strength	Elongation in 8in.	Elongation in 2 in.
A709 Grade 36	≥250 MPa	≥400 MPa	≥20%	≥23%
A709 Grade 50	≥345 MPa	≥450 MPa	≥18%	≥21%
A709 Grade 50S	≥345 MPa	≥450 MPa	≥18%	≥21%
A709 Grade 50W	≥345 MPa	≥485 MPa	≥18%	≥21%
A709 Gr HPS 50W	≥345 MPa	≥485 MPa	≥18%	≥21%
A709 Gr HPS 70W	≥485 MPa	585-760MPa	-	≥19%
A709 Grade 100	≥690 MPa	760-895MPa	-	≥18%
A709 Grade 100W	≥620 MPa	760-895MPa	-	≥16%
A709 Gr HPS 100W	≥690 MPa	760-895MPa	-	≥18%

Equivalent Grade of A709 Grade 50 Steel

Grade	Standard	Country	Application
S355J2W	EN	Europen	Mainly used in Automobile, Bridges, Buildings, Machinery, Pressure vessel industries, Engineering construction.
1.8965	EN	Europen	Mainly used in spacecraft, nuclear reactors, Automobile, Bridges, Buildings, Machinery, Pressure vessel industries, Engineering construction.
WTSt52-3	DIN,WNr	Germany	Mainly used in building steel structures, construction machinery, mining and mountain machinery, trucks, bridges.
SMA50CP	JIS	Japan	Mainly used in building steel structures, construction machinery, mining and mountain machinery, trucks, bridges.