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ERW Q345 25mm Mild Steel Square Tube 1 Inch X 1 Inch 2 In X 20 Ft 0.875" X 0.065" SS400

Categories Mild Steel Square Tube
Brand Name: OEM/ODM
Model Number: ASTM A 572
Certification: ISO
Place of Origin: CHINA
MOQ: 3 tons
Price: negotiable based on the quantity
Payment Terms: T/T, Western Union, L/C
Supply Ability: 3000 tons per month
Delivery Time: within 15 days after received the advance
Packaging Details: standard seaport packing or as customers' requirement
Standard: ASTM GB JIS DIN
Grade: Q345
Shape: Square
OD: 30*30mm-1000*1000mm
Surface: Galvanized, Oiled, black painted
Application: Construction Structure
Tolerance: ±5%
Length: 6-12m
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ERW Q345 25mm Mild Steel Square Tube 1 Inch X 1 Inch 2 In X 20 Ft 0.875" X 0.065" SS400

Grade 10#-Black Carbon Steel Square Pipe Welded Steel Pipe


Q345 grade: comprehensive mechanical performance is good, the low temperature performance may also, plasticity and good weldability, used in low pressure vessel, oil tank, vehicles, cranes, mining machinery, power stations, Bridges under moving load of the structure, mechanical parts, building structure, general metal parts, hot rolled or normalizing state, can be used in various structure below 40 ℃ cold areas.
(1). Widely used in Bridges, vehicles, ships, construction, pressure vessels and so on. (2). Suitable for hot rolling, controlled rolling, normalizing, normalizing, tempering and quenching state supply of engineering steel and general structure with thickness not less than 3mm steel plate, steel strip, section steel, steel bar.

ASTM-572 Grade 50
Chemical composition: C=0.45%, Mn=0.75%, P=0.04% max, S=0.05% max
PropertyValue in metric unitValue in US unit
Density7.872 *10³kg/m³491.4lb/ft³
Modulus of elasticity201GPa29100ksi
Thermal expansion (20 ºC)11.7*10-6ºCˉ¹6.5*10-6in/(in* ºF)
Specific heat capacity486J/(kg*K)0.116BTU/(lb*ºF)
Thermal conductivity50.9W/(m*K)353BTU*in/(hr*ft²*ºF)
Electric resistivity1.62*10-7Ohm*m1.62*10-5Ohm*cm
Tensile strength (hot rolled)565MPa81900psi
Yield strength (hot rolled)310MPa45000psi
Elongation (hot rolled)16%16%
Hardness (hot rolled)84RB84RB
Tensile strength (cold drawn)625MPa90600psi
Yield strength (cold drawn)530MPa76900psi
Elongation (cold drawn)12%12%
Hardness (cold drawn)88RB88RB
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Quality ERW Q345 25mm Mild Steel Square Tube 1 Inch X 1 Inch 2 In X 20 Ft 0.875" X 0.065" SS400 for sale
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