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34CrMo4 Seamless pipe
34CrMo4 Seamless pipe
34CrMo4 Seamless pipe
34CrMo4 Seamless pipe

34CrMo4 Seamless High Pressure Gas Cylinder Pipe

34CrMo4 seamless steel pipe/steel tube is a typical Cr-Mo alloy steel grade under European standard En10297-1. It has high strength and creep strength, and good impact tenacity at low temperature.
Product introduction

Product Description
34CrMo4 seamless steel pipe/steel tube is a typical Cr-Mo alloy steel grade under
European standard En10297-1. It has high strength and creep strength, and good
impact tenacity at low temperature.

Product Name EN 10297 Cr-Mo alloy 34CrMo4 gas cylinder pipe
Standard EN 10297
Grade 38Mn6, 30CrMo4, 34CrMo4
Thickness 2.9 – 60 mm(Sch10~Sch XXS)
Outer Diameter 38 – 720 mm (2.75’’-28 ‘’)
Length 5.8-12m or OEM
End PE or BE
Packing Plastic cap or bundling
Surface Treatmengt Black paint,3LPE,3LPP,FBE or OEM
Section Shape Round
Technique Seamless hot rolled
Brand Name Baotou Steel
Application Used to make gas cylinders, bottles and other gas vessels
Place of Origin China
MOQ 5 ton

 

Gas cylinder tube is a kind of seamless steel pipe and also a kind of alloy steel pipe. It
is mainly used to make gas storage tanks, accumulators and other high pressure gas vessels.
Because of our sophisticated technology and heat treatment equipment, our gas cylinder tube
absolutely has overwhelming advantages than similar products in quality and properties, and
can be in extreme small wall thickness. the common specifications of small wall thickness tube is
273mm*6.5mm, 325mm*7mm, 356mm*7.8mm, and 406mm*9mm.
Technical data
Chemical composition in % by mass
Steel grade C Si Mn P S Cr Mo Ni
Steel name Steel min max min max min max max max min max min max min max
number
38Mn6 1.1127 0,34 0,42 0,15 0,35 1,40 1,65 0,035 0,035
30CrMo4 1.7216 0,27 0,34 0,35 0,35 0,60 0,035 0,035 0,80 1,15 0,15 0,30
34CrMo4 1.722 0,30 0,37 0,40 0,60 0,90 0,035 0,035 0,90 1,20 0,15 0,30
 
Mechanical properties for tubes made of steels in accordance with the delivery condition +QT
Steel grade Minimum tensile properties
Steel name Steel number Yield strength (ReH) Tensile strength ( Rm) A%
MPa MPa
For T in mm For T in mm For T in mm
≤ 8 > 8 > 20 > 50 ≤ 8 > 8 > 20 > 50 ≤ 8 > 8 > 20 > 50
≤ 20 ≤ 50 ≤ 80 ≤ 20 ≤ 50 ≤ 80 ≤ 20 ≤ 50 ≤ 80
            l t l t l t l t
38Mn6 1.1127 620 570 470 400 850 750 650 550 13 11 14 12 15 13 16 14
30CrMo4 1.7216 750 630 520 480 950 850 750 700 12 10 13 11 14 12 15 13
34CrMo4 1.722 800 650 550 500 1000 900 800 750 11 9 12 10 14 12 15 13
NOTE l = longitudinal, t = transverse.
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