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

St52,St52.3,St52.4 Seamless Pipe


Specifications and Standards:

DIN1629 ST52 Steel Pipe

Structure  . Machine . honed Tube

Application:Precision Seamless Steel Tubes,pipes

Demention Tolerances

Outside Diameter Tolerance Unit:mm

 

Processing mode Diameter Length Linearity Precision Roughness of inner hole
Cold rolling 30-100 ≤ 12M 0.3-1.0 H8-H10 0.4-1.6
Cold drawn 30-250 ≤ 12M H8-H10 0.8-1.6
Grinding 40-500 ≤ 12M 1000 H8-H9 0.4-0.8
Rolling 40-400 ≤ 7M H8 0.4
 
Pipe Tolerances
Hot Rolled(extrude,expansion) +/- 1% D or 0.50,choose the larger one
Cold Drawn(Rolled) +/- 1% D or 0.30,choose the larger one

The Tolerance of the wall thickness of hot rolled (extrude,expansion)steel pipes unit:mm

Steel pipe types outside diameter S/D Tolerances
Hot Rolled(extrude) <=102 --- +/-12.5%S or +/-0.40,choose largest
^ >102 <=0.05 +/-15%S or +/-0.40,choose largest
^ >102 >1.05-0.10 +/-12.5%S or +/-0.40,choose largest
^ >102 >0.10 +/-12.5%S,-10%S
Expansion ---- --- +/-15%S

The tolerances od wall thickness of cold drawn steel pipes unit:mm

steel pipe types wall thickness tolerances
cold drawn (rolled) <=3 +/-15%S,-10%S or +/-0.15,Choose the larger one
^ >3 +/-12.5%S,-10%S

Chemical Composition

Standard Grade C Si Mn P<= S<= Cu<= Ni<= Cr<= Mo<= V
GB/T8162 10# 0.07-0.14 0.17-0.37 0.35-0.65 0.035 0.035 0.25 0.25 0.15 / /
^ 20# 0.17-0.24 0.17-0.37 0.35-0.65 0.035 0.035 0.25 0.25 0.25 / /
^ 35# 0.32-0.39 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.25 0.25 / /
^ 45# 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.30 0.25 / /

 

上一篇:Hot Dipped Galvanized Steel Pipe

下一篇:ANSI steel pipe schedule chart - SCH40 SCH80 seamless ERW pi

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

New Update Pipe List

    45 # seamless steel pipe
    45 # seamless steel pipe.

    Oil pipeline
    Oil pipeline,J55/N80/L80/P110 Material API5CT oil pipeline 2)OD:2 2/8"~4 1/2" WT:2.87~16.00mm 3)MOQ:100 tons.

    A53 Welded Pipe,A53 LSAW pipe
    ASTM A53 Welded Pipe Standard: A53/API 5L GR. B Grade: X42, Gr. B Size: 2" to 32", Wallthickness:Sch10-Sch40 (2-30)mm.

    SCH 20 steel pipe parameters standard
    SCH 20 steel pipe parameters standard SCH 20 seamless steel pipe● SCH 20 seamless steel pipe Grade: 10 #● SCH 20 seamless steel pipe chemical composition:.
Contact Us Online To Serve You Better

Hot Click PRO

    EN10297-1 Seamless steel pipe
    EN10297-1 Seamless steel pipe for mechanical and general engineering purposes - Technical delivery conditions Non-alloy and alloy steel tubes. ERW En10255 Pipe ,EN 10255 Steel Pipe Technical Data
    ERW En10255 Pipe ,EN 10255 Steel Pipe Technical Data,We can produce ERW/LSAW Steel Pipes: OD: 13.7mm ~ 273mm WT: 1.5 mm ~ 12 mm Length: Max 14 m Process method: ERW, LSAW Standard: BS EN 10255, ASTM A53, API 5L, JIS G3444, GB/T3091. Heat exchanger pipe and Heat exchanger boiler tube
    Heat exchanger pipe and Heat exchanger boiler tube,seamless heat exchanger tubes and boiler tubes 1.Our own factory,quality promised,fair price 2.NDT 3.+A,+N,oil-dip anti-rust. DIN 2391 pipe
    DIN 2391 Black Phosphated Hydraulic Tubes with High Precision seamless pipe.