DIN standard 17175 takes into account pipes that are heat resistant. These products are regularly a part of high pressure and could be used up to a temperature range of 600℃. Application fields of the DIN 17175 Grade 15Mo3 Seamless Boiler Tube include construction of boilers systems, pipeline systems, pressure vessels as well as other forms of equipment.
This low alloy grade has significant additions of molybdenum and manganese to it. Besides its use in boiler systems, the 15Mo3 Pipe is useful for applications in the oil, gas and chemical industry. Generally, these industries make use of heat exchangers, as a means of transference of heat among two or more solutions. Heat exchangers are applied in processes involved in both cooling and heating. Since the low alloyed 15Mo3 is an alloy which can be used in elevated temperature setting, it is considered to be ideal as Din17175 Seamless Steel Pipe for Heat Exchangers. In many instances, businesses in these key sectors lookout for the best and safest option for their applications. The use of DIN 17175 15Mo3 Seamless Pipes here would be advantageous as they have the ability to withstand almost 20% more stress than their welded counterparts.
Standard: DIN 17175
Description Name: DIN 17175 seamless boiler tubes, DIN17175 ST35.8 Boiler tubes, DIN17175 ST45.8 Boiler tubes, DIN17175 15Mo3 seamless tubes, DIN17175 13CrMo44 seamless tubes, DIN17175 10CrMo910 Seamless tubes, DIN17175 Seamless tubes.
Size: 19mm-350mm
W.T.: 1.5mm-50mm
Shape: Round
Production Type: Cold drawn or Hot rolled
Length: Single random length/ Double random length or as customer’s actual request max length is 10m
Grade: ST35.8, ST45.8, 15Mo3, 13CrMo44, 10CrMo91
Antirust oil-dip, Varnish, Passivation, Phosphating, Shot Blastin
For high middle, low pressure boiler and pressure purpose
| Standard | Grade | Chemical Components (%) | ||||||
| C | Si | Mn | P | S | Mo | Cr | ||
| DIN17175 | St 35.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.040 | ≤0.040 | / | / |
| St 45.8 | ≤0.17 | 0.10-0.35 | 0.40-0.80 | ≤0.040 | ≤0.040 | / | / | |
| 15Mo3 | 0.12-0.20 | 0.10-0.35 | 0.40-0.80 | ≤0.035 | ≤0.035 | 0.25-0.35 | / | |
| 13CrMo44 | 0.10-0.18 | 0.10-0.35 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.45-0.65 | 0.70-1.10 | |
| 10CrMo910 | 0.08-0.15 | ≤0.50 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.90-1.20 | 2.0-2.50 | |
| Standard | Grade | Mechanical properties | ||
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) | ||
| DIN17175 | St 35.8 | 360-480 | ≥235 | ≥25 |
| St 45.8 | 410-530 | ≥255 | ≥21 | |
| 15Mo3 | 450-600 | ≥270 | ≥22 | |
| 13CrMo44 | 440-580 | ≥290 | ≥22 | |
| 10CrMo910 | 450-600 | ≥280 | ≥20 | |
The tubes shall be supplied suitably heat treated over their entire length. The following heat treatment shall be used, depending on the type of steel: