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Q345 Steel Specification and Equivalent Standard

Q345 steel specification Q345 steel belongs to 16Mn steel grade, usually it is produced in hot rolled state, hot rolled steel plate, hot rolled steel coil/sheet, it has comprehensive mechanical and welding property, as it shows good performance in structural purposes, it is widely used as welding structural part in manufacturing of ship, railway and vehicles, bridges, boiler, pressure vessel ...

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Q345 Steel, Q345A Q345B Q345C Q345D Q345E Equivalent ...

Q345 Steel Properties and Introduction. 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 (datasheet tested with 16mm diameter steel bars or steel plates). According to GB/T 1591 – 2008, Q345 material has 5 quality grades Q345A, Q345B, Q345C, Q345D and Q345E.

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Q345 steel property and specification are equivalent to ...

Q345 steel is one kind of Chinese standardized low alloy, medium tensile strength steel made with a hot-rolling process, used for a number of manufacturing purposes. To some extent, the Q345 possesses the same property and composition of ASME A572, namely the Q345 is equivalent to A572 .

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

Sep 28, 2010 · I don't think the Young's modulus will differ much from that of other mild steels (29,000-30,000 ksi). There are also different 4 grades of Q235 and 5 grades of Q345 which have varying carbon content. The PRC Steel Design Code GB 50009 uses a value of E = 206,000 MPa (29,877,774 psi).

Q235 material is in accordance with PRC standard GB 700 and Q345 is in accordance with GB 1591. I have translated copies of these standards but they may be out of date now. According to my documents The min. yield point of Q235 is 235 MPa for thicknesses < 17mm, 225 MPa for 16-40mm, 215 MPa for 40-60mm, 205 MPa for 60-100mm, 195 MPa for 100-150mm, and 185 MPa for >150mm. The tensile strength is 375-500 MPa. The min. yield point of Q345 is 345 MPa for thicknesses < 17mm, 325 MPa for 16-35mm, 295 MPa for 35-50mm, and 275 MPa for 50-100mm. Tensile strength 470-630 MPa.Excellent, so this means the Q345 is a ballpark average of around 50% stronger. I'm ok with that. The Q235 did the job so I can live with this Q345 then. Thanks! IanIan, If deflection is the source of your problem, a higher strength steel will not fix it. You will need to add stiffness to the piece to limit the deflection. It could also be just a bad paint job.I don't really know that I agree sme75, in the past when I've had similar deflection problems switching to a higher strength steel has solved the problem without additional bracing. IanThe Q345 is stronger as bones206 noted. That means that it has a higher yield stress and higher tensile strength. Its stiffness (Young's modulus) should be about the same as the Q235 however. Since you mentioned that there is no permanent deformation at the maximum load then the elastic strains might be what's causing the powder coating to pop off, and these will be the same for the 2 steels. Also, the location of the peel is not where I expect the highest stresses and strains to be located, so it may be something else! Paint peels off for several reasons, and stress/strain is only one of them. Nagi Elabbasi Veryst EngineeringHow does the Modulus of Elasticity compare for the two steels? Probably about the same. The paint did not peel off in a high stress area, so bad paint job sounds more likely. BAI too am now very curious how the two modulus' compare. IanIan 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 isn't any appreciable stress at the point the paint bubble failed. If you loaded the rubber pad on its near edge in the photo, over the paint bubble, rather than fairly uniformly over its whole area, you could get some torsional stresses where the paint failed. But, I doubt that they would be a likely failure mechanism.I follow you dhengr. I drew attention to the powder coating popping off because this happened right as the lift attempted to lift this heavy load at that moment. I still wish someone knew the two modulus of elasticities of the two metals. IanI don't think the Young's modulus will differ much from that of other mild steels (29,000-30,000 ksi). There are also different 4 grades of Q235 and 5 grades of Q345 which have varying carbon content. The PRC Steel Design Code GB 50009 uses a value of E = 206,000 MPa (29,877,774 psi). Perhaps the steel mill in China could provide you with some more specific material data.Equivalent of Chinese Material Q235B - Metal and ...Aug 06, 2012Q235 Material - Metal and Metallurgy engineering - Eng-TipsAug 05, 2009See more results

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gb t 706 q345a angle steel yield strength - Willpower ...

Q345A,Q345A PLATE,Q345A STEEL - Mild steel plate GB/T1591 Q345 includes five different steel grades as Q345A,Q345B,Q345C,Q345D and Q345E.These high tension steel grades owned the same mechincal properties,minimum yield strength at 345Mpa and tensile strength within 470-630Mpa.

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Q345A,Q345A PLATE,Q345A STEEL - Mild steel plate ...

GB/T1591 Q345 includes five different steel grades as Q345A,Q345B,Q345C,Q345D and Q345E.These high tension steel grades owned the same mechincal properties,minimum yield strength at 345Mpa and tensile strength within 470-630Mpa.

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China prime q345 steel data sheet yield strength steel ...

q345 steel data sheet yield strength steel plate is structural steels, used for welding, bolting, and more riveted structure. ... Main Application GB/T1591 Q345 Steel Plate are used in Construction of Bridges, Highway Construction and Other Engineering construction. q345r steel plate specifications Yield Strength.

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What is Q345 steel? - Quora

Dec 07, 2018 · Q345 steel is Chinese low alloy high strength structural steel, material density is 7.85 g/cm3. Yield Strength is 345 MPa, tested with 16mm diameter steel bars or steel plates, Tensile Strength is 470 - 630 Mpa. For detailed specifications, please...

What is the yield strength of Q345B steel plate?Dec 31, 2018What is Q235 steel grade?Nov 26, 2017What is steel? - QuoraJul 02, 2016What is cognium steel?Oct 16, 2015See more results

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gb t 706 q345a angle steel yield strength - Willpower ...

Q345A,Q345A PLATE,Q345A STEEL - Mild steel plate GB/T1591 Q345 includes five different steel grades as Q345A,Q345B,Q345C,Q345D and Q345E.These high tension steel grades owned the same mechincal properties,minimum yield strength at 345Mpa and tensile strength within 470-630Mpa.

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Q345 steel property and specification are equivalent to ...

Q345 steel is one kind of Chinese standardized low alloy, medium tensile strength steel made with a hot-rolling process, used for a number of manufacturing purposes. To some extent, the Q345 possesses the same property and composition of ASME A572, namely the Q345 is equivalent to A572 .

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China prime q345 steel data sheet yield strength steel ...

q345 steel data sheet yield strength steel plate is structural steels, used for welding, bolting, and more riveted structure. ... Main Application GB/T1591 Q345 Steel Plate are used in Construction of Bridges, Highway Construction and Other Engineering construction. q345r steel plate specifications Yield Strength.

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Q355 Steel, Q355B Q355C Q355D Properties, Composition ...

Q355 Steel Introduction and Specifications. Q355 steel is a new Chinese steel grade of 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 short for 355 MPa ...

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q345 steel datasheet yield strength

Uploaded by zhonghao2009. ... High strength low alloy structural steels Symbol Q345 superseded the old designations ... China Steel Q235,Q345. GB/T1591 Q345B Carbon and Low-alloy High-strength Steel Plate. Yield Strength(MPa) % Elongation in 2 in.(50mm) min. ... Any request for GB/T1591 Q345B Carbon and Low-alloy High-strength Steel Plate ...

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GB/T1591 Q345B Carbon and Low-alloy High-strength Steel Plate

Any request for GB/T1591 Q345B Carbon and Low-alloy High-strength Steel Plate Email [email protected] and Tel:0086-371-65652655 Inquiry If you have any request or doubts,Please send message to us,It will be checked for you on time.

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Study on Statistical Characteristic of Strength of Steel ...

Abstract This paper collects more than 20,000 groups of testing data of steel plates' strength, such as steel grades Q235 and Q345, which are produced by representative steel mills in China during recent years, divided into groups in terms of grouping stipulations by thickness of steel plates in the criteria (GB 700-88, Carbon Structural Steels;GB/T 1591-94, High Strength Low Alloy Structural ...

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GB/T 1591 Q345A/Q345B/Q345C/Q345D/Q345E STEEL PLATE …

The standard GB/T1591 low alloy high strength steel plate of Q345 is used to manufacture factory building,drilling rig,electric shovel,powered wheel tipper,mining vehicles,excavators,loaders,bulldozers and various types of cranes.

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Q235 Steel Plate Equivalent Steel Standard-ASTM A36

Tensile strength of 20# steel is not less than 410, yield strength is not less than 245, and mechanical properties of A36 are about the same. Comparison of A36, SS400 and Q235 plate As can be seen from data above, ASME standard A36 and China standard Q235 materials are named according to yield strength of material, and for SS400 is tensile ...

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q345 steel properties tensile strength

Q345 Mechanical Properties Tensile strength 231-231 σb/MPa Yield Strength 154 σ 0.2 ≥/MPa Elongation 56 δ5≥(%)· 2018-4-1 GB/T1591 Q345 Carbon and Low-alloy High … Main Application GB/T1591 Q345 Steel Plate are used in Construction of Bridges, Highway Construction and Other Engineering construction.

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China Steel - SteelfromChina

Check the China Steel designations and grades below for a variety of China Steel products. If you can’t find the type of China Steel comparison you’re looking for, send us a message with your inquiry and we’ll get back to you with an answer shortly.

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Q345 Structural Steel Equivalent ASTM A572 Grade 50 ...

Oct 19, 2016 · Q345 structural steel has good mechanical properties, low temperature performance, plasticity and good weld ability, Q345 steel is mostly used in low pressure vessel, oil tank, vehicles, cranes, mining machinery, power stations, mechanical parts, building structure, and general metal parts.. Q345 Steel Chemical Composition:

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Q345E,Q345E PLATE,Q345E STEEL - Mild steel plate ...

GB/T1591 high strength low alloy structural steel grade Q345E owned minimum yield strength at 345Mpa and tensile strength above 470Mpa.When rolling steel plate Q345E,the impacting test shall be done under low temperature at minus 40 centigrade.

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Q345B,Q345B PLATE,Q345B STEEL - Mild steel plate ...

Steel grade Q345B is the most common used as high strength low alloy structural steel in industry area.Xinsteel can offer steel coils,steel plates,angles,channels for Q345B materials.The equivalent steel grade with Q345B are EN 10025-2 S355JR,ASTM A572/A572 A572 Grade 50 and DIN 17100 St52-3.

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