Change the car and think deeply about the regret choice Dazhou’s Kangfen, his neighbors called him Lao Cao. In 2013, he purchased a tractor with 420 horsepower from other brands. Due to the transportation route, 420 horsepower was insufficient to satisfy Lao’s transportation needs, so the vehicle was changed. The idea has been around for a long time. Later, Master Cao bought a Dongfeng Tianlong sail and saw the Dongfeng Cummins 480-horsepower ISZ 13-liter engine. “Before I also looked at other brands of cars, the prices were similar. Finally, considering the problems of Sichuan Mountain Road, the maintenance cost of the engine and the car's later stages, finally, Dongfeng Tianlong was selected that matched the 480 hp. After a period of running-in, I feel that this time my choice has never been so accurate. I used the opportunity to make a lot of money, and my little life passed through (Sichuan dialect: comfort). Talk about the feelings of this old man. " "I'm not a folder holder, but Concord is really synonymous with fuel-efficient." “I’m not a folder holder (Sichuan dialect: å啬鬼), but Kang Machine is really synonymous with fuel-efficient. I’ll give you an account: I have an engine with an average fuel consumption of 35 liters per 100 kilometers, and at least 30-32 at least. I have been engaged in transportation for some years, and it is not an exaggeration to say that this machine can save 3-4 litres of the model compared to other brands in the same category.Look, I run the line from Dazhou to Guangzhou, a 3,000-kilometer trip back and forth. It can save 90 liters of oil, if the annual green transport from Dazhou to Guangzhou can reach 70-80 baht, this would save 7200 liters of oil in a year.I would generally refuel from Sinopec, the price is 6.5 yuan / litre, the bicycle will save fuel for one year. About 50,000!" The synonym for ISZ's 13-liter engine is not out of thin air. It uses Cummins Ultra High Pressure (XPI) fuel injection system, the lowest specific fuel consumption is as low as 185g/kw.h. In addition, EP fuel-saving switch is also standard, through a simple button switch, Kang powder can always switch between two different modes of operation, fuel saving and power, according to their own desire to save fuel. "When I talk about Kai Shuang, I say hill climbing. It's perfect!" "I speak Kai Shuang (耿直) ha, every time when returning to statehood, when entering the ups and downs of the Yunnan-Guizhou plateau, similar models, others are 5 files uphill, increase the torque, in order to pull the goods uphill. And I use This one is not less than 11-speed, and it is not difficult to climb the mountain to climb the road. The power performance is leveraged and it is perfect. The ISZ13-liter engine not only saves fuel, but also has strong power. It matches the maximum power of the sailing model with 480 horsepower, meets the national five emission standards, and has a maximum torque of 2330N.m. Large displacement of 13L brings excellent dynamic performance to the vehicle. Fast start, fast climbing! "I really didn't have time to spread the fire." Another reason why the Dongfeng Cummins ISZ 13L engine makes it special for Cao's master is: This engine is so worry-free! “When you were running and transporting, you often saw a variety of engine malfunctions on the road. You didn’t say anything when you missed the time. It was annoying.†He concluded, “The engine is the heart of a truck, and the heart has a problem. The size and running transportation are not practical, so now when I choose a car, I highly value the overall performance of the engine, and the Cummins ISZ just satisfies my own needs. Half a year later, my 13-liter Cummins Dragon did not have anything. Problem, performance is very stable. "And even if something goes wrong, I don't have to worry about it. When there was no fire, the Dongfeng Cummins had a perfect after-sales service system and adequate accessories." For this, he was very reassuring that Dongfeng Cummins only had more than 2,000 service centers nationwide and several hundred key service outlets. In July this year, the country completed the mandatory reserve of core service outlets. Therefore, in the after-sales aspect, Dongfeng Cummins can truly solve the worries of users. In the end, Master Cao said "I have a good old man all the way." Ended our interview. Heat Treated Steel Bar And Tube
HEAT TREATED STEEL BAR AND TUBE
Heat treated steel bar is produced by heating and cooling in different temperature based on the steel grades to improve the steel bar mechanical properties or machinability for various industrial applications. Heat treated steel bar includes annealed steel bars, normalized steel bar, quenched and temper qt steel bar.
Annealed steel bar has better ductility and lower hardness, which can be easier to be machined. The annealing processing is usually widely used for steel grade with higher carbon content above 0.5%. However, some low carbon steel also requires to do annealing for special usage such as 20CrMnTi gear steel. For some special material such as 20CrMnTi gear steel and GCr15 such bearing steel, spheroidizing annealing is often required.
Normalized steel bar sometime is also one kind of annealing processing. It mainly changes the grain to remove the impurities in steel and improves the strength and hardness. For some hot rolled steel bars, to keep the basic mechanical properties, normalizing is often used.
Quenching and Tempering, abbreviated as Q&T is a king of processing that strengthen or harden steel bars by heating the materials and then cooling in water, oil or other liquid medium, that rapidly the change from austenite to perlite to get the proper properties for various usage. The quenched & tempered steel bar materials are usually with carbon from 0.30% - 0.60%, it is widely used as merchant bars in components of various machines.
Our advantages on producing heat treated steel bars:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Wide range of Cold Drawn Steel Bar sizes: from 10mm to 150mm
3) Different cold drawing medias powder or oil to get different surface
4) Straightening machines to get better straightness up to 0.5mm/m
5) Grinding and polishing machines to get better roughness upto 0.4um
6) Heat treating furnaces to adjust the mechanical properties
7) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
8) Multiple packages to avoid broken packages and anti-rusty
Astm A193,Round Steel Tubing,Heat Treated Steel Tube,Heat Treated Steel Bar And Tube SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.lerenspecialsteel.com
Dongfeng Tianlong 
Dongfeng Cummins Engine 
Every year, Dongfeng Cummins, who runs a mountain road, can save him 50,000 yuan annually.
Dongfeng Cummins has fans all over the country. Recently, a reporter and his party arrived in Dazhou City, Sichuan Province, interviewed a local Kangfen, listened to his experience, and how he had been inseparable with Dongfeng Cummins.