Henan Gnee New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of astm a36/a53/a106/a209/a213 square/rectangular/hex/oval aluminum/galvanized/stainless a269/a519/a501/304 welded precision round carbon seamless steel pipe in China. With abundant experience, we warmly welcome you to wholesale high quality astm a36/a53/a106/a209/a213 square/rectangular/hex/oval aluminum/galvanized/stainless a269/a519/a501/304 welded precision round carbon seamless steel pipe in stock here from our factory. Good service and reasonable price are available.
| Seamless steel tube products for machining use tube blanks (mainly continuous casting blanks) as raw materials, which are heated and rolled into steel tubes by centering, piercing, continuous rolling and tension reduction units. At the same time, the supporting production equipment such as tube end thickening, pipe joint processing, tool joint processing, heat treatment, ultrasonic, magnetic flux leakage, eddy current, magnetic particle on-line flaw detector, spectrum and hardness tester can meet the various requirements of different users. | ||||||||||||||||
| Chemical composition of pipes for machining; | C 0.08~0.19 Mn 0.40~0.70 Si 0.17~0.37 S ≤0.035 P ≤0.035 Cr 0.40~0.70 Mo 0.40~0.55 Ni ≤0.30 |
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| Performance of pipes for machining; | Tensile strength)MPa:410~560 ~ 560 Yield point MPa:205 Elongation (%): 2 |
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| The purpose of the pipe for machining: | Compared with solid steel such as round steel, seamless steel pipe is lighter in weight when the bending and torsion strength is the same, and it is an economic cross-section steel, which is widely used to manufacture structural parts and mechanical parts, such as oil drill pipes, bicycle racks and steel scaffolding used in construction. | |||||||||||||||
| Tube for machining structure | |||||
| Variety classification | measure | Steel grade/brand | executive standard | application area | |
| Outside-Diameter (mm) | Wall-Thickness (mm) | ||||
| Structural pipe | 42~760 | 4~120 | 20#, 35#, 45#, Q345A/B/C/D, Q390, Q420, 25Mn, 27SiMn, etc. | GB/T 8162 | General structure with, Mechanical tube |
| Vehicle tube | 45~245 | 4~35 | 20Mn2,SAE1527,MZ410R,MZ530R,30Mn2,40Cr,45Mn2,etc. | YB/T5035, technical protocol |
Tube for automobile axle and automobile axle sleeve |
| Tube for die casting | DN200~DN1200 | 21CrMo10,21CrMo10-2,etc. | Q/OHAD030, technical protocol |
Centrifugal ductile iron pipe Tube die blank |
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| Military pipe | 42~760 | 4~120 | 30Cr,40Cr,35CrNi1MoA,etc. | Military standards and agreements | Military tube |
| Pipe for geological drilling | 42~133 | 4~25 | DZ40,DZ55,STM-R780,DZ60,etc. | Q/OHAD006, GB/T 9808 , technical protocol |
Drilling pipe |
| Pipe for hydraulic prop | 42~760 | 4~120 | 20#,35#,45#,27SiMn,30MnNbRE,30CrMnSi,30CrMnSiA,etc. | GB/T 17396, technical protocol |
Making hydraulic equipment for coal mining, hydraulic cylinders and plungers for truck cranes. |
| Fluid conveying pipe | 42~760 | 4~120 | 20#,Q345,Q390,etc. | GB/T 8163, technical protocol |
Used as a tube for conveying fluid. |
Q1.Are you a trade company or manufacturer?
We are a company integrating industry and trade.
Q2. Can I request to change the form of packaging and transportation?
A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.
Q3.Can you provide free sample?
Of course we can,We have many samples in various patterns in stock, and customized samples will take about 5-7days to produce.Just contact us for the FREE SAMPLES now !
Q4. How can I get a quotation from you ?
You can leave us message, and we will reply every message in time. And you can also find our contact information on contact page.
Q5.How can you garantee what I got will be good ?
We are factory with 100% predelivery inspection which garantee the quality.And as golden supplier in China.
Q6.Can I have my own logo on the product?
Of course!We are a custom service,it includes customized packaging,customized logo,graphic customization.
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