Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593
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1、Structure of Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593：
Stainless steel Welded pipe is used in applications that require the pipe to have high anti-corrosive properties. Compared to steel and cast iron pipes, stainless steels are more flexible, durable and have a higher strength. They are very resistant to erosion-corrosion and can be formed and welded into various shapes and sizes. It is easily connected with various other piping systems and materials and is designed to withstand long life cycles.2、Main Features of Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593：
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Good visual effect
•Reasonable price
3、 Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593 images：
4、 Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593 Specification：
Size：
| DN | OD | WT | ||||
| SCH 5S | SCH 10S | SCH 20S | SCH 40S | |||
| (A) | (B) | mm | mm | mm | mm | mm |
| 350 | 14' | 355.6 | 3.96 | 4.78 | 7.92 | 11.13 |
| 400 | 16' | 406.4 | 4.19 | 4.78 | 7.92 | 12.7 |
| 450 | 18' | 457.2 | 4.19 | 4.78 | 7.92 | 14.27 |
| 500 | 20' | 508.0 | 4.78 | 5.54 | 9.53 | 15.09 |
| 550 | 22' | 558.8 | 4.78 | 5.54 | 9.53 | 15.09 |
| 600 | 24' | 609.6 | 5.54 | 6.35 | 9.53 | 17.48 |
| 650 | 26' | 660.4 | 5.54 | 7.92 | 12.7 | 17.48 |
| 700 | 28' | 711.2 | 5.54 | 7.92 | 12.7 | 17.48 |
| 750 | 30' | 762.0 | 6.35 | 7.92 | 12.7 | 17.48 |
| 800 | 32' | 812.8 | 7.90 | 12.7 | 17.48 | |
| 850 | 34 | 863.6 | 7.92 | 12.7 | 17.48 | |
| 900 | 36' | 914.4 | 7.92 | 12.7 | 19.05 | |
| 1000 | 40' | 1016.0 | 9.53 | |||
| OD(mm) | WT(mm) | |||||||||||||
| 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | ||
| 9.5 | ||||||||||||||
| 12 | ||||||||||||||
| 1/2' | 12.7 | |||||||||||||
| 13 | ||||||||||||||
| 14 | ||||||||||||||
| 5/8' | 15.9 | |||||||||||||
| 3/4' | 19.1 | |||||||||||||
| 7/8' | 22.2 | |||||||||||||
| 1' | 25.4 | |||||||||||||
| 1-1/8' | 28.6 | |||||||||||||
| 1-1/4' | 31.8 | |||||||||||||
| 1-1/2' | 38.1 | |||||||||||||
| 40 | ||||||||||||||
| 45 | ||||||||||||||
| 2' | 50.8 | |||||||||||||
| 52 | ||||||||||||||
| 2-1/4' | 57.15 | |||||||||||||
| 2-3/8' | 60.3 | |||||||||||||
| 2-1/2' | 63.5 | |||||||||||||
| 70 | ||||||||||||||
| 3' | 76.2 | |||||||||||||
| 85 | ||||||||||||||
| 3-1/2' | 88.9 | |||||||||||||
| 4' | 101.6 | |||||||||||||
| 4-1/8' | 104.78 | |||||||||||||
| 4-1/4' | 107.95 | |||||||||||||
| 4-1/2' | 114.3 | |||||||||||||
| 5-1/4' | 133.35 | |||||||||||||
| 6-1/4' | 158.75 | |||||||||||||
| 8-5/8' | 219.08 | |||||||||||||
ASTM A249 tolerance：
| OD | WT | Length | |
| ＜25.40mm | ±0.10mm | ±10.00% | OD＜50.8mm +3.0mm -0mm OD≥50.8mm +5.0 -0mm |
| ≥25.4mm~38.1mm | ±0.15mm | ||
| ≥38.1mm~50.8mm | ±0.20mm | ||
| ≥50.8mm~63.5mm | ±0.25mm | ||
| ≥63.5mm~76.2mm | ±0.30mm | ||
| ≥76.2mm~101.6mm | ±0.38mm | ||
| ≥101.6mm~190.5mm | +0.38mm -0.64mm | ||
| ≥190.5mm~228.6mm | +0.38mm -1.14mm | ||
ASTM A269 tolerance：
| OD | WT | Length | |
| ＜38.1mm | ±0.13mm | OD＜12.7mm ±15% OD≥12.7mm ±10% | OD＜38.1mm +3.20mm -0mm OD≥38.1mm +4.80 -0mm |
| ≥38.1mm~88.9mm | ±0.25mm | ||
| ≥88.9mm~139.7mm | ±0.38mm | ||
| ≥139.7mm~203.7mm | ±0.76mm | ||
| ≥203.7mm~304.8mm | ±1.01mm | ||
| ≥304.8mm~355.6mm | ±1.26mm | ||
5、FAQ of Stainless Steel Welded Pipe ASTM A249/A269; GB/T24593：
①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.
③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
Any question, pls feel free to contact us !
- Q:Is galvanized steel pipe stainless steel pipe?
- Galvanized steel pipe is a kind of welded steel pipe, and its essence is hot-dip galvanized coating on the inner and outer surface of welded steel pipe. Hope to be of help to you.
- Q:304 stainless steel, welded to seamless difference in what place?
- Chemical composition of seamed pipe and seamless pipe are different. The production of seamless steel components only meets the basic requirements of astm. The production of seamed tube steel containing suitable for chemical composition of welding. For example, the mixing of silicon, sulfur, manganese, oxygen, and a certain proportion of elements such as the triangle ferrite can produce a welding flux which is easy to transfer heat during welding, so as to make the whole weld be welded well. The lack of steel pipe above the chemical components, such as seamless tube, can produce all kinds of unstable factors in the process of welding, welding and welding penetration is not easy.
- Q:Stainless steel and stainless steel pipe inside and outside polishing off, what is the difference?
- The inside and outside polishing tubes are polished by the surface of the polished material, and they look like bright ones, just like the mirror surface. Mainly used in viscous liquid and gas moving equipment, such as printing and dyeing, pulp and other industries
- Q:Is food grade stainless steel GB9684 304?
- You can't say that.GB9684 is the implementation of standards, 304 is a material of stainless steel, stainless steel material is very much, such as 304321316347310s, 904L and so on, as long as the material of stainless steel in accordance with GB9684 standards of production and processing, can be used as a food grade stainless steel, it should be said that in accordance with the implementation of the standard GB9684 production and processing of food grade stainless steel is 304.
- Q:What is the difference between the stainless steel tube and tube rolling
- Stainless steel stands for material. According to the production process, steel pipe, sub welded pipe, hot rolled pipe, cold rolled pipe and cold drawn pipe. What you say should refers to the cold drawn pipe drawing. Pipe called cold drawn, round steel called cold drawn. Compared with these processes, cold drawing and cold rolling are close to each other. The accuracy is higher, because of the plastic deformation, the mechanical properties are better. The specific difference is that the cold rolling is less than the cold drawn processing track, the accuracy and surface roughness are higher, and the processing cost is high. Cold drawing hardness is high, processing cost is low, processing will be wasted.
- Q:Stainless steel pipe specification 25*2 what does it mean?
- Stainless steel pipe specification 25*2, indicating stainless steel pipe, the outer diameter of 25mm, wall thickness of 2mm.
- Q:What does "stainless steel pipe 201304" mean?
- 304 stainless steel is a common stainless steel material, the density of 7.93 g/cm3, the industry is also called 18/8 stainless steel. High temperature resistance of 800 degrees, with good processability, high toughness characteristics, widely used in industry and furniture decoration industry and food and medical industry.
- Q:Why pickling before cleaning stainless steel pipe oil?
- On the premise of oxide, a good foundation for the formation of passive film is made, which makes the passivation film more compact and improves the passivation effect!
- Q:Classification, advantages and disadvantages of stainless steel welding
- Metal gas shielded arc welding.It belongs to the gas protection welding, also is a kind of arc welding, that is, in the protection of gas, welding rod arc melting. Metal gas welding can be used in steel, non alloy steel, low-alloy steel and high alloy, etc. these materials are widely used. But one thing, its protective gas must be an active gas, such as carbon dioxide or a mixture of gases. The only drawback is that if the outdoor welding, then the workpiece can not be damp, otherwise it will affect the protection of gas protection effect.
- Q:Mechanical properties of stainless steel tubes
- High temperature fatigue is the process of damage to fracture due to repeated stress changes in the material at high temperature. The results show that, at a certain high temperature, the fatigue strength of the 8 power high temperature of 10 is 1/2 of the high temperature tensile strength at this temperature.
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