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.
| 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. | |||||||||||||||||
