Original
By certification 
Size: |
Seamless: 1/2″-24″(DN15-DN600) Welded: 1/2″-48″(DN12-DN1200) |
Standra: |
ASME B16.9,HT/T21631,MSS SP-43,DIN2605,JISB2313 GB/T12459,GB/T13401,SH3408,HG/T21635 |
Thickness: |
SCH5-XXS |
Grade: |
TP304L,TP316L,TP310S,TP321,TP904L;DEPLEX S31803/F51,S32750/F53 |
When the elbow is not standard, the height of the 45° bend should be equal to the bending radius ×0.707 (sin45°).
The length of the stainless steel 45 degree elbow is obtained by multiplying the bending radius by the tangent of 22.5° (half the length of the elbow).
If the bending radius is equal to 150, then its height is 150×0.707 = 106.07
The object of this problem is probably steel seamless pipe fitting.
Seamless butt welding pipe fittings needed in various industrial and civil pipeline installation projects shall meet the requirements of GB/ t12459-1990 "seamless butt welding steel pipe fittings".
The material of the selected pipe fitting should be the same as that of the pipeline, with the same outer diameter, the same wall thickness or slightly thicker.
Elbow manufacturing technical requirements
1. As most pipe fittings are used for welding, in order to improve the welding quality, the end is turned into groove, with a certain Angle and a certain edge. This requirement is also strict.
surface quality and mechanical properties of the basic and the pipe is the same.
For welding convenience, the fittings are of the same type of steel as the pipe to be connected.
2. All pipe fittings shall undergo surface treatment. The iron scale on the inner and outer surfaces shall be sprayed off through shot peening and then coated with anti-corrosion paint.
This is for export needs, moreover, in the domestic is also to facilitate transportation to prevent corrosion and oxidation, we should do this work.
3, is the requirements of the packaging for small pipe fittings, such as export, we need to make wooden cases, about 1 cubic meter, the number of elbow in this kind of box is about not more than a ton, the standard allows a suit, that is, a large set of small, but the total weight is generally not more than 1 ton.
For large pieces y, you need a single package, like 24 ", you need a single package.
Another is the packaging mark, mark is to indicate the size, steel number, batch number, manufacturer's trademark.
http://www.mlfitting.com/
