Stainless Steel Welded Pipe ASTM A312/A316/A358

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1、Structure of Stainless Steel Welded Pipe ASTM A358/A312/A316 Description

    Stainless steel welded pipe is actually a cover term, covering a wide range of alloy and making them suitable for different attributes that are used in a very wide and large numbers of different industries. Stainless steel pipe is resistant to erosion, highly flexible, powerful, easy to use, and can be done in distinct approaches, which means that more and more stainless steel was used as a construction material for large-scale, high impact buildings. It can be molded, rolling, and it can create amazing shapes to make it perfect, It is used as experimental buildings, The use of steel pipe welding of large stainless steel covers other examples.








2Main Features of the Stainless Steel Welded Pipe ASTM A358/A312/A316



• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

•Reasonable price 








3Stainless Steel Welded Pipe ASTM A358/A312/A316 Images




 

Stainless Steel Welded Pipe ASTM A312/A316/A358

Stainless Steel Welded Pipe ASTM A312/A316/A358


 




 

4Stainless Steel Welded Pipe ASTM A358/A312/A778 Specification

Size

 

Outside   diameter          Outside                                                                           Thickness
SCH 5SSCH 10SSCH 20SSCH 40S
(A)(B)mmmmmmmmmm
35014′355.63.964.787.9211.13
40016′406.44.194.787.9212.7
45018′457.24.194.787.9214.27
50020′5084.785.549.5315.09
55022′558.84.785.549.5315.09
60024′609.65.546.359.5317.48
65026′660.45.547.9212.717.48
70028′711.25.547.9212.717.48
75030′7626.357.9212.717.48
80032′812.8 7.912.717.48
85034863.6 7.9212.717.48
90036′914.4 7.9212.719.05
100040′1016 9.53  

 

 

Tolerances on dimensions table 

 

Tolerances on dimensions table 
StandardOutside(mm)Thickness(mm)Length(mm)
ASTM A312≤48.26-0.4+No special provisions(Unspecified)-12.50%Appoint   LengthDefinite cut length+6.40
48.26~114.3000
114.30~219.080.8 
219.08~457.201.6 
457~660-4 
660~864-5 
 864~1219-5.6 
JIS G345930.00   ±0.30≥30.00 ±1.00%2.00   ±0.20≥2.00 ±10%Appoint   LengthDefinite cut Length
GB/T 1277113.00   ±0.2013.00~40.00 ±0.30≥40.00 ±0.80%≤4.00 +0.50   -0.604.00 ±10%20
EN 10217-7D1±1.50%   with±0.75mm(min)D2±1.00% with±0.50mm(min)D3±0.75% with±0.30mm(min)T1±15.00%   with±0.60mm(min)T2±12.5% with±0.40mm(min)T3±10.00% with±0.20mm(min)≤6000 +5.00   -06000~12000 +10.00 -0
D4±0.5%   with±0.10mm(min)T4±7.50%   with±0.15mm(min)
 T5±5.00%   with±0.10mm(min)
 EN ISO 1127

 




5FAQ of Stainless Steel Welded Pipe ASTM A358/A312/A778 



How 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.


Why 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 !


 


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Q:25 of the steel pipe with 6 in charge of what is the difference?
Outer diameter representation of steel pipe:When the design is nominal diameter DN means diameter, should be nominal diameter DN and the corresponding product specifications table. Specification for unplasticized polyvinyl chloride pipes for building drainage, de (nominal outer diameter) * e (nominal wall thickness), (GB, 5836.1-92), polypropylene (PP) pipe for water supply, specifications by de * e (nominal outer diameter * wall thickness).
Q:How long are the seamless tubes? Are they six meters long?
The production process of seamless steel tube in general can be divided into two kinds of hot rolling and cold drawing, cold-rolled seamless steel pipe production process than hot-rolled seamless steel pipe seamless pipe hot rolling to complex, diameter is generally greater than 32mm, thickness 2.5-200mm, cold-rolled seamless steel pipe outside diameter 6mm, wall thickness to 0.25mm cold rolling hot rolling high precision ratio.
Q:DN80 seamless steel tube, what is the standard thickness?
Generally speaking, the diameter of the pipe can be divided into outer diameter, inner diameter and nominal diameter. Tubes are made of seamless steel tubes. The outer diameter of the tubes is indicated by the letter D, followed by additional outer diameter dimensions and wall thicknesses such as seamless steel tubes with an outer diameter of 108.
Q:How to make the internal tooth of the steel pipe?
Compared with the ordinary light pipe, tube can effectively prevent the formation of steam film between the seal and the pipe wall, increase the light disturbance flow inside the tube, the tube wall temperature is more uniform, which can avoid the light pipe damage, and improve the heat transfer efficiency of boiler. The number of thread head of internal thread pipe is 4, 6 head and 8 head according to need. The main materials are 20G, SA210C, T2, T12, 12Cr1MoVG, 15CrMoG, T22, T23 and so on. China needs 2.5~3.0 tons per year of inner thread tube.
Q:Is the steel frame on each floor supporting formwork (floor) called full scaffolding?
After the use of full scaffolding, more than 3.6 meters of interior wall decoration is no longer calculated decorative scaffolding, and the interior wall of the scaffolding is still in accordance with the provisions of the scaffolding.
Q:Why seamless steel pipe called seamless steel pipe?
Seamless steel pipe is a hollow section, without the joint round, square, rectangular steel. Seamless steel tubes are made of ingots or billets made by piercing and are then made by hot rolling, cold rolling or cold casting. Seamless steel pipe with a hollow section, as pipe conveying fluid, compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, bike frame and construction using steel scaffolding.
Q:What is the outer diameter and wall thickness of the welded steel pipe of national standard DN250?
DN250 is the nominal diameter, the outer diameter of the steel pipe is 273mm, the thickness is above 6.5mm.
Q:What's the difference between round and round tubes?
Round steel is generally refers to steel, the surface is not threaded, different from round steel pipe, round tube is round tube.
Q:Is it good to buy a simple wardrobe or a steel pipe?
If the home place is big, buy Wooden, good-looking durable, if the place is small, buy cloth, easy to receive, mobile, tidy and cheap.
Q:Is the diameter of the steel tube indicated by the outer diameter by the wall thickness or by the inside diameter by the wall thickness?
The specification for steel tubes is the outer diameter multiplied by the wall thickness.Generally speaking, the diameter of the pipe can be divided into outer diameter (De), inner diameter (D) and nominal diameter (DN).

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