High Quality Hot Rolled Crane Rail Q355b Flat Bar for Overhead Crane

High quality hot rolled crane rail Q355B flat bar for Overhead CraneProduct DescriptionGeneral description:Crane rail is used to withstand the concentrated pressure from the wheels and guide the wheels.There are many different type of rail and flat bar& square bar is one of them.Flat bar & square bar is mainly used as crane rail for bridge cranes, hoist cranes, overhead cranes, gantry cranes and semigantry cranes in commercial buildings, warehouses and structures, etc.it is featured by smooth running effect, easy assemble.Flat bar & square bar are manufactured using high grade materials and is known for its sturdiness, durability and application specific design.Nante flat bar customize radius of the angle to be 3mm, which is most suitable for rail wheel to run.And the material is Q355B, which is similar to A572, ST52, S355,etc.Advantages: Our flat bar is very straight and the surface of our billet is very smooth.We customize radius of the angle to be 3mm, which is most suitable for rail wheel to run.The both end side of this flat bar was cut by sawing machine which is very easy for assemble.The material is Q355B, which is similar to A572, ST52, S355,etc.Fast and easy installation which no need any spare parts.Save material weight, compared with P rail, save 50% weight.The large contact area with the wheel tread which can effectively increase the allowable wheel pressure.Fixed Length in 5.8m, without any short lengths.Technical data:Material: Q345B/Q345CrSize: 40*30,50*30, 60*40, 70*40, 80*60, 100*60, 120*80,40*40,50*50,60*60,70*70,80*80Produce process: Hot rolledChemical component (%):C≤0.2,Si≤0.5,Mn≤1.7,P≤0.035,S≤0.035Tensile strength(Mpa):407-630Yield strength(Mpa):≥335Elongation(%):≥20Product ParametersTechnical Data of Flat bar&Square barNameTypeStandardWeightSize(mm)(kg/m)ABFlat Bar40*30GB/T1591-20089.42304050*3011.78 30  50  60*40  18.84  40  60  70*40  21.98  40  70  80*60  37.68  60  80  100*60  47.11  60  100  120*80  75.37  80  120  Square Bar  40*40  12.56  40  40  50*50  19.63  50  50  70*70  38.47  70  70  80*80  50.25  80  80 Applications:Flat bar&square bar is widely used in cranes,hoisting machinery,port machinery, railway machinery,cutain wall, engineering machinery, shipbuilding, elevator parts, crane rails and automobile industry. Company ProfileFAQQ1: Are you Manufacturer or Trading Company,A1:We are an integrated industrial and trade enterprises. We have our own R&D team, factory and marketing department, Q2: Which standard of your crane and crane components apply to?A2: Our Crane can design and manufacture base on FEM, CMAA, ISO EN, GB standard.Q3: How do you ensure your product quality?A3: All our processes strictly adhere to ISO-9001 procedures, which include Material Traceability, ISO WPQR and welder certificate, Measuring Device Calibration, NDT for the welding, and full assembling and load testing before delivery. Q4:  How can I make payment?A:  We accept T/T bank transfer, L/C, Paypal.Q5:  How can I assembly the cranes in my factory?A:  We suggest you to recruit a crane service team in local to install the crane base on our Installation Guideline and User manual. If cannot, we can send engineer to your factory to guide you do the installation with extra charge, and the transportation, accommodation, translator shall be covered by your side also. Q6: What is the warranty period, and how can I claim warranty If my crane have any issue?A:  Our warranty period is 12 months after cargo leave China port. If the crane have any issue, our after-sales team and engineer will help you solve the issue by email or Video conference. If the defect is caused by quality issue, we will ship the spare parts to you by air to help you fixed it as soon as possible. Q7: Do you accept OEM business:A: Sure, we do many OEM productions for some famous crane brand and customers around the world.Q8: What about shipping:A: We recommend small batch by the way of air or LCL, but large delivery by the way of container or bulk vessel. Q9: what about delivery time?A: different capacity crane and components have different estimated delivery time, generally speaking, around 4 weeks to 8 weeks. Q10: What is your company policy if we want to distribute NANTE product in our market?A: Firstly, thank you for your interest to promote NANTE brand, we have distributors in 50+ countries, pleaes no hesitate to contact us for the detail discussions, as we have different policies for the different target markets. Surely, you are welcomed to visit our factory and let's talk face to face. /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1