Low pressure in the boiler tubes

Low pressure in the boiler tubes1).ASTM A106 Gr B and so on (2).OD :21.3 mm - 355.6mm ( 1/2'' - 14'')

Seamless Steel Pipe

(1).Product Name : Carbon Seamless Steel Pipe 

(2). Brand : Zhongzheng  ( By ourself )   OEM  Blank

(3).Specification:

       OD 21.3mm - 355.6mm ( 1/2'' -  14'')

(4) Standard ;

       ASTM A106 GR B ,        ASTM A53 GR B

       SAE1020                       SAE1045

       JIS G4051 S20C            JIS G4051 S45C

       JIS G3454 STPG370      JIS 3454 STPG42

       DIN ST 45-8                   DIN ST 42-2    

(5)  Technics : Cold draw and hot rolled .

(6)  Packing : Paint Varnish Coating , Plastic Caps and mark on the pipe

(7)   Tolerate:
             OD +1% / -1%
             Thickness +12.5% / -10%
             lengh  20mm