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  4. Grade Q345 Imported Tube does not conform to grade S355 ...

    Elongation for Q345 is at the bottom end of the specification which is 0.22% while the local manufactured tube is an average is 0.37%. Lastly but importantly the minimum yield of Q345 is 345MPa which is not the same as the minimum yield of grade S355 which is 355MPa.

  5. 3mm thick alloy steel plate Q345D - Best Chian Steel

    the material difference of Q345A, Q345B, Q345C, Q345D and Q345E Q345 is a kind of steel material. It is a low alloy steel (C 0.2%), widely used in bridges, vehicles, ships, [PDF] National Standards of the Peoples Republic of China

  6. The difference between Q345 and Q235 - Yaang

    Sep 08, 2016 · Q345 is a steel material. It is a low-alloy steel (C <0.2%), widely used in bridges, vehicles, ships, buildings, pressure vessels. Q represents the yield of this material, behind the 345, the yield refers to the value of this material, approximately 345.

  7. Q345 Seamless Steel Tube - Made-in-China.com

    Jan 26, 2007 · Q345A Steel Tube, Q345b Boiler Tube, Q345c Steam Tube manufacturer / supplier in China, offering Q345 Seamless Steel Tube, ASTM B348 Gr2 Titanium Bar, GB/T1591-2008 Q345 Carbon Steel Bar and so on.

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  10. What is Q345 steel? - Quora

    Dec 13, 2018 · Q345 steel is an alternative to the old steel grades of 12MnV, 14MnNb, 18Nb, 16MnRE, 16Mn, etc., and it is not just a substitute for 16Mn steel. In terms of chemical composition, 16Mn and Q345 are also different. More importantly, there is a largebest q345c tubeSome results are removed in response to a notice of local law requirement. For more information, please see here.

  11. ASTM A572 Gr 50 vs Q345B - American Welding Society

    May 07, 2013 · Hello everybody: The Technical Specifications for metal works (gates, trash racks, etc.) of a hydro project indicate, particularly, for the gates to use steel ASTM A572 Gr 50 or its equivalent S355JR according to EN 10025. The Contractor is trying to change that material to steel Q345B (chinese material and code). At the same time, this Contractor says that they, in China, have developed best q345c tube

  12. Q235 vs Q345 Strength? - Structural engineering general ...

    Sep 28, 2010 · I agree with BA's last post, and would add that if paint were going to be cracking and chipping due to high stresses it would be at the welds joining the plate (foot) to the steel tube section. That welding and area is the area to watch. There really

  13. what is the us steel equivalent for gb/t 1591-94 q345 steel

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  15. Q345c High Strength Alloy Plate - shanksteelships.com

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  18. Q345 Seamless Steel Tube - Made-in-China.com

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  20. The difference between Q345 and Q235 - Yaang

    Sep 08, 2016 · Q345 is a steel material. It is a low-alloy steel (C <0.2%), widely used in bridges, vehicles, ships, buildings, pressure vessels. Q represents the yield of this material, behind the 345, the yield refers to the value of this material, approximately 345.

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  22. What is Q345 steel? - Quora

    Dec 13, 2018 · Q345 steel is an alternative to the old steel grades of 12MnV, 14MnNb, 18Nb, 16MnRE, 16Mn, etc., and it is not just a substitute for 16Mn steel. In terms of chemical composition, 16Mn and Q345 are also different. More importantly, there is a largebest q345c tube

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    Hot Rolled Steel plate ASTM A572 Grade 50. ASTM A572, specification for High-strength low-alloy Columbium-Vanadium structural steel plate. This specification covers 5 grades and 4 types of high strength low alloy structural steel shapes, plates, piling, bars.Some results are removed in response to a notice of local law requirement. For more information, please see here.

  25. Q235 vs Q345 Strength? - Structural engineering general ...

    Sep 28, 2010 · I agree with BA's last post, and would add that if paint were going to be cracking and chipping due to high stresses it would be at the welds joining the plate (foot) to the steel tube section. That welding and area is the area to watch. There really

  26. Q345c High Strength Steel Plate - shanksteelships.com

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