406mm CNG Cylinder

406mm CNG Cylinder

The CNG cylinder is made of 34CrMo4 steel, and it comes with an outer diameter of 406mm. All our 406mm CNG cylinder products have designed wall thickness of 8.8mm and working pressure of 20Mpa. They are classified into a variety of types according to the cylinder capacity, including but not limited to 80L steel cylinder, 120L gas cylinder, 160L CNG cylinder and maximally 200L cylinder. The 80L CNG cylinder has a length of 850mm and weight of 86kg. The 120L steel cylinder has a length of 1190mm and weighs 116kg, and the 200L CNG cylinder has length of 1865mm and weight of 176kg. For more details about our 406mm CNG cylinders, please refer to the specification chart.

Quality of the 406mm CNG Cylinder
In our CNG cylinder production process, we have found that the cylinder wall thickness will typically decrease by 0.3mm after heat treatment, internal polishing and external polishing. If the initial steel tube thickness is equal to that of desired cylinder wall thickness, the final cylinders will not have the necessary thickness after processing, which may result in hazards and dangers after long term use.
To avoid potential dangers, we begin with steel tubes with thickness 0.3mm thicker than the desired cylinder wall thickness for cylinder production. This helps guarantee our CNG cylinder quality.

Appearance Advantage of the 406mm CNG Cylinder
We have made substantial investments in acquiring steel tube materials with uniform thickness. Uniform cylinder wall thickness, coupled with our unique slightly saucer-shaped cylinder bottom and neck design, allows for effectively reduction in cylinder weight. So, while being used on vehicles, our CNG cylinder can assist in reducing energy consumption.

Usage Instruction on the 406mm CNG Cylinder
Our steel cylinder is designed for compressed natural gas storage. Each cubic meter of CNG, after dehydration, desulfuration, and other treatments, should contain no more than 8mg of water and no more than 20mg of hydrogen sulfide.

Chemical Composition of the Raw Material for 406mm CNG Cylinder Production
Material designation: 34CrMo4
Composition C Si Mn P S P+S Cr Mo V Ni Cu
Content (%) 0.30- 0.37 ≤ 0.40 0.60- 0.90 ≤ 0.020 ≤ 0.020 ≤ 0.030 0.9- 1.2 0.15- 0.30 - ≤ 0.3 ≤ 0.2
Technical Specifications of the 406mm CNG Cylinder
Type Outer Diameter (mm) Capacity (L) Length (mm) Weight (Kg) Designed wall
thickness (mm)
Working Pressure
CNP20-80-406A 406 80 850 86 8.8 20 34CrMo4
CNP20-90-406A 90 930 93
CNP20-100-406A 100 1020 101
CNP20-101-406A 101 1025 101
CNP20-110-406A 110 1105 108
CNP20-112-406A 112 1120 109
CNP20-120-406A 120 1190 116
CNP20-130-406A 130 1275 123
CNP20-140-406A 140 1360 131
CNP20-145-406A 145 1400 135
CNP20-151-406A 151 1450 139
CNP20-160-406A 160 1530 146
CNP20-165-406A 165 1570 150
CNP20-180-406A 180 1695 161
CNP20-200-406A 200 1865 176

As a China-based 406mm CNG cylinder manufacturer, our company also provides 325mm CNG cylinder, 279mm CNG cylinder, 356mm automotive CNG cylinder, 267mm steel gas cylinder, and more.

Feedback Form
Other Products
  • 267mm CNG Cylinder The CNG cylinder comes with an outer diameter of 267mm, and it is classified into two models with different capacity, length and weight, etc. The 267mm CNG cylinder is made of 34CrMo4 material and works under maximum pressure of 20MPa. The 40L CNG cylinder is designed with a length of 930mm, and the 60L steel cylinder has a length of 1320mm. Both types of 267mm CNG cylinders are characterized by light weight. 40L cylinder weighs 41kg, and 60L gas cylinder weighs 58kg...
  • 279mm CNG Cylinder Our 279mm CNG cylinder is designed with 6.4mm wall thickness and is made of 34CrMo4 to ensure high strength and durability. It is able to work under maximum pressure of 20MPa. In order to suit customers' varied demands, we design our 279mm CNG cylinders with varied capacity, length and weight, etc. To illustrate, the capacity of our CNG steel cylinder ranges from 30L to 100L, and length ranges from 680mm to 1945mm, and the weight of our 279mm CNG cylinder is between 34kg and 92kg...