q345 steel standard chemical composition
Dec 12, 2019 · Some foreign customers are often confused about GB Q345 steel. Q345 low alloy high strength steel is the replacement steel of old GB grade 12MnV, 14MnNb, 18Nb, 16MnRE, 16Mn, etc. The chemical element is similar to 16Mn, and Q345 increases the micro-alloy element V, Ti and Nb which refines the grain, greatly improving the toughness and comprehensive mechanical properties of steel, Datasheet for Steel Grades Structure Steel Q345Datasheet for Steel Grades Structure Steel Q345 Q345 Standard Number:ITEM Standard Number Descriptions Q345 Chemical composition(mass fraction)(wt.%) Chemical Min.(%) Max.(%) C Si Mn P S Cr Ni Mo V Ta 0.18 0.55 0.025 0.025 0.02-0.15 W N Cu Co Pb B Nb Al Ti Other 0.015-0.0 60 0.015 0.02-0.20 Q345 Q345 Physical Properties Tensile strength 115-234 b/MPa
Q235 steel is equivalent to Japenese steel grade SS400 in application, the only difference is that ss400 steel requires only S,P composition < 0.050, Q235 has requirements for More element C, Si, Mn, S, P. Yield strength of q235 is >235Mpa, which is almost the same to SS400 245Mpa. Q represents the yield of this material, the latter 235, refers to the yield value of this material, at about 235MPA. Q235 Steel Q235A Q235B Q235C Q235D Equivalent,
- Q235 SteelFeatures and ApplicationsData Sheet and SpecificationQ235 Steel EquivalentQ355 Steel, Q355B Q355C Q355D Properties, Composition Dec 08, 2019 · Q355 steel is a Chinese low alloy high strength structural steel, which replaced Q345, the material density is 7.85 g/cm3. According to GB/T 1591 -2018, Q355 has 3 quality levels:Q355B, Q355C and Q355D. Q is the first letter of Chinese Pinyin:qu fu dian, which means Yield Strength, 355 is the minimum value of yield strength 355 MPa for steel thickness 16mm, and tensile strength is 470-630
Q345 Carbon Mild Steel Q345A Q345B Q345C Q345D Q345E Feb 28, 2021 · Q345 Steel Properties Q345 steel is a Chinese GB standard Low Alloy High Strength Structural Steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa, it has better properties than Q235. According to GB/T 1591 2008, Q345 material has 5 quality grades:Q345A, Q345B, Q345C, Q345D and Q345E.
Q345 Steel Chemical Composition. Dec 25, 2020. Q345 Steel is a low alloy steel (C < 0.2%), widely used in construction, bridges, vehicles, ships, pressure vessels, etc. Q stands for the yield strength of Q345 Steel material. The latter 345 is the yield value of this material, which is about 345 MPa. Q345D (GB ) - Worldwide equivalent grades - Steel NumberQ345D (China, GB ) - European (EU, EN) and wordwide Steel equivalent grades These comparison table is only intended as an indication of the closest khown equivalent grades. The source standarts should always be checked for the specific purpose for each material, in case of doubt Q355 Steel Properties, Composition & EquivalentQ355 steel is a Chinese low alloy high strength structural steel, which replaced Q345, the material density is 7.85 g/cm3. According to GB/T 1591 -2018, Q355 has 3 quality levels:Q355B, Q355C and Q355D. Q is the first letter of Chinese Pinyin:qu fu dian, which means Yield Strength, 355 is the minimum value of yield strength 355 MPa for steel thickness 16mm, and tensile strength is 470-630
- Q460 Steel IntroductionProperties and ApplicationsDatasheet & SpecificationEquivalent GradesQ460 steelis a Chinese steel grade of Low Alloy High Strength Structural Steel, Yield Strength is 460 MPa, data is tested with 16mm diameter steel bars or steel plates, tensile strength is 550-720 Mpa, test with steel bar Ø40mm.For Q460 steel equivalent, chemical composition and mechanical properties, please see the tables below.Introduction and application of Q345 low alloy steel - EB Jul 09, 2019 · External standard of Q345:GB709, internal standard:GB/ t1591-2008 Due to the implementation of the standard, this steel plate allows negative tolerance delivery. The chemical composition of Q345 material is as follows: What are the differences among S355NL, S355ML and Q345 3. Overview of Q345:Q345 steel plate is a kind of steel. It is a low-alloy steel widely used in bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc. Standard GB/T1591-2008:high strength low aloy structural steel. Different characteristics:1.Q345 Steel Specification and Equivalent StandardSteel Standard Steel Grade Chemical Composition; C Mn Si P S V Nb Ti Al; Q345:A:0.020:1.00~1.60:0.55:0.045:0.045:0.02~0.15:0.015~0.060:0.20-B:0.020:1.00~1.60:0.55:0.040:0.040:0.02~0.15:0.015~0.060:0.20-C:0.020:1.00~1.60:0.55:0.035:0.035:0.02~0.15:0.015~0.060:0.20:0.015:D:0.020:1.00~1.60:0.55:0.030:0.030:0.02~0.15:0.015~0.060:0.20:0.015:E:0.020: