DIN 17175 13CrMo44 seamless steel tubes

13CrMo44 alloy pipe is a low-alloy heat-resistant steel pipe widely used in high-temperature and high-pressure environments.

Main Characteristics:

‌Good high-temperature strength‌: It exhibits excellent creep resistance and endurance strength at high temperatures (typically up to around 550-580°C). Molybdenum is the key element for enhancing high-temperature strength.

‌Hydrogen corrosion resistance‌: The addition of chromium and molybdenum provides a certain degree of resistance to hydrogen corrosion in high-temperature and high-pressure hydrogen-containing environments.

‌Good oxidation resistance‌: Chromium forms a protective oxide film, offering a certain level of oxidation resistance.

‌Good toughness and plasticity‌: Under appropriate heat treatment conditions, it demonstrates good comprehensive mechanical properties.

‌Good weldability‌: It belongs to the category of weldable steel grades. However, preheating and post-weld heat treatment (particularly stress-relief annealing) are usually required to prevent cold cracks and ensure the performance of the welded joint (especially toughness).

Heat Treatment State:

13CrMo44 is typically used in the normalized + tempered state.

‌Normalizing‌: Heating to approximately 900-960°C, followed by air cooling after holding. The purpose is to refine grains and homogenize the structure.

‌Tempering‌: Conducted after normalizing, with the tempering temperature usually in the range of 620 - 680°C. The purpose is to eliminate internal stresses, improve toughness and plasticity, and achieve the desired comprehensive mechanical properties.

Heat treatment temperature of DIN 17175 13CrMo44 Seamless Steel Tubes

Chemical composition of DIN 17175 13CrMo44

Mechanical property of DIN 17175 13CrMo44

Package and shipping:

1. Bundle package/In bundle with plastic bag outside/ In wooden case
2. Marking as per customer's request
3. Paint on the pipe as per customer request
4. Pipe caps as customer request
5. As per your requirement