Q345B is black carbon steel. The specification of a Q345B steel sheet depends on what you want and ranges from 6 to 120mm thick, 1600 to 3200mm wide and 6000 to 12000mm long.
q345b is equivalent to grade 50
low alloyed steel plate Material: Q345B (which is equivalent to S335JR,JIS G3135 , DIN EN10025) Size: Thickness: 8-200mm Width: 1800mm up Length: 6000-12000mm
The ASTM equivalent of Q345B is A572 gr.50. This is a steel plate that is used in the construction of large structures like bridges.
S355 is slightly stronger than Q345B, and the welding is exactly the same. S355NL grade is a normalized steel (fine-grained steel) in the EN10025-3:2004 standard. EN 10025-2 S355JR material is a low-alloy high-strength structural steel that meets the European standard EN10025. ensteelstandardcom/FAQ/what-is-the-difference-between-s355-and-q345b-steel.html
MS ESW = mild steel electric resistance welding c class = smaller size
q345b is equivalent to grade 50
The ASTM equivalent of Q345B is A572 gr.50. This is a steel plate that is used in the construction of large structures like bridges.
low alloyed steel plate Material: Q345B (which is equivalent to S335JR,JIS G3135 , DIN EN10025) Size: Thickness: 8-200mm Width: 1800mm up Length: 6000-12000mm
the yield strength of Q345B is 345MPa for thicknesses <= 16 mm. 325MPa for 16 mm < thickness <= 35 mm. 295MPa for 35 mm < thickness <= 50 mm. 275MPa for 50 mm < thickness <= 100 mm.
The ASTM equivalent of Q345B is A572 gr.50. This is a steel plate that is used in the construction of large structures like bridges.
S355 is slightly stronger than Q345B, and the welding is exactly the same. S355NL grade is a normalized steel (fine-grained steel) in the EN10025-3:2004 standard. EN 10025-2 S355JR material is a low-alloy high-strength structural steel that meets the European standard EN10025. ensteelstandardcom/FAQ/what-is-the-difference-between-s355-and-q345b-steel.html
There are many different types of steel. It would depend on the specifications of the steel.
Steel is iron mixed with carbon, the amount of carbon changes the specifications of the steel (strength, elasticity,...)
Albert Ladd Colby has written: 'A comparison of certain physical properties of nickel steel and carbon steel' -- subject- s -: Nickel steel, Strength of materials, Structural Steel 'Review and Text of the American Standard Specifications for Steel Adopted in ..' 'Review of the Text of the American Standard Specifications for Steel ..'
The specifications of a cold steel Katana have varied over time. The standard modern Katana is 23 1/2 inches long and every one of them has a curved blade.
the yield strength of Q345B is 345MPa for thicknesses <= 16 mm. 325MPa for 16 mm < thickness <= 35 mm. 295MPa for 35 mm < thickness <= 50 mm. 275MPa for 50 mm < thickness <= 100 mm.
Mini steel plants are smaller, have electric furnaces, use steel scrap and sponge iron. They have re-rollers that use steel ingots as well. They produce mild and alloy steel of given specifications.