What are Differences Between Steel Grades of 34CrMo4 in Different Standards ?
Gas cylinders can be made from aluminum, steel, alloys, and composite materials. Mechanical strength, corrosion resistance, and impact resistance are critical factors in determining which material is used. Carbon fiber composite cylinders can be very light due to the high tensile strength of carbon fiber, but are more difficult to manufacture. So the alloy steel 34CrMo4 is the usually used material because of its overall mechanical property and cost. All the standards of GB/T 18248, EN10297, JIS G3429 and EN 10083-3, have its own steel grade of 34CrMo4. So is it the same in these different standards ? Now let’s take a look at this comparison chart below to see their difference.
In all these standards, 34CrMo4 in Chinese standard GB/T18248 is the most strict which can meet all the requirements of other standards.