Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe

How to calculate 20 # 45 # precision seamless steel pipe siz


 

 

 

How to calculate 20 # 45 # precision seamless steel pipe size tolerances

20 # 45 # seamless steel pipe

20 # 45 # precision seamless steel pipe

20 # 45 # precision seamless steel mechanical properties
 
Steel grades
Mechanical Properties
Cold drawn (rolled) pipe
Metal cutting tube
# 20
Tensile strength σbN/mm2
Elongation δ5%
≥ 510
≥ 390
≥ 5
≥ 20
45 #
≥ 647
≥ 590
≥ 4
≥ 4
 
 
Processed form
Bore
Length
Straightness
Dimensional accuracy
Inner hole roughness
Cold-rolled
30-100
≤ 12M
0.3-1.0
H8-H10
0.4-1.6
Cold Drawn
30-250
≤ 12M
H8-H10
0.8-1.6
Honing
40-500
≤ 12M
1000
H8-H9
0.4-0.8
Rolling
40-400
≤ 7M
H8
0.4
 
Dimensional tolerances
 
Dimensional tolerances (thickness deviation of ± 5%)
Diameter size
H8
H9
H10
30
+0.033
0
+0.052
0
+0.084
0
> 30-50
+0.039
0
+0.062
0
+0.100
0
> 50-80
+0.046
0
+0.074
0
+0.120
0
> 80-120
+ 0.054
0
0.087
0
+0.140
0
> 120-180
+0.063
0
+0.100
0
+0.160
0
> 180-250
+0.072
0
+0.115
0
+0.185
0
> 250-315
+0.081
0
+0.130
0
+0.210
0
> 315-400
+0.089
0
+0.140
0
+0.230
0
 

The high-pressure boiler tubes dimensional tolerances

 

 
The steel pipe types diameter (D) wall thickness (S)
Pipe wall thickness cold drawn pipe steel pipe diameter (mm) allow deviation (mm) (mm) allow deviation (mm)
> 30 ~ 50 ± 0.3> 3 ~ 20 ± 10%

上一篇:tubing and casing API SPEC 5CT API SPEC 5B parameters mechan

下一篇:Rolling perforated gross Mild Steel Pipe quality reasons Ana

 Copyright (c)2012 LongtaidiIf you do not find the information you need, Click Here  Get Support

New Update Pipe List

Contact Us Online To Serve You Better

Hot Click PRO

    Ship Pipes
    Ship Pipes - KR,ABS,GL,COS,DNV,LR,BV,MK ship pipe. ASTM A519 Seamless steel pipe
    ASTM A519 Seamless steel pipe,Seamless Carbon and Alloy Steel Mechanical Tubing ASTM A519Size range: O.D.:6-320mm W.T.:1-50mm L:max12000mm. Sch wall thickness hot rolled seamless pipe
    Sch wall thickness hot-rolled seamless pipe,Sch wall thickness series 1938 American National Standards Institute ANSI B36.10 (welded and seamless steel pipe ) standard specifies petrochemical enterprises in China Steel Series (SH3405) is als. EN10216 & DIN1629 Seamless steel pipes for pressure needs
    EN10216-1/DIN1629 Seamlesssteelpipes forstressapplications Sizevariety: O.D.: 6-120mm W.T.: 1-15mm L.: 15000mm max. EN 10216-1 Non-alloymetaltubes with specifiedspacetemperaturehouses Steel grade and chemical composition: Steel Grade C Si Mn P S Cr Mo Ste.