13CrMo4-5
13CrMo4-5 is a chromium-molybdenum creep-resistant steel for higher temperatures than 16Mo3 – for boilers, superheaters and steam lines in power plants.
Application & properties
13CrMo4-5 is a chromium-molybdenum creep-resistant steel for higher temperatures than 16Mo3 – for boilers, superheaters and steam lines in power plants.
- Superheater and boiler tubes
- Steam and live-steam lines
- Pressure vessels in power and plant engineering
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| C | 0.10–0.17 |
| Si | ≤ 0.35 |
| Mn | 0.40–1.00 |
| P | ≤ 0.025 |
| S | ≤ 0.010 |
| Cr | 0.70–1.15 |
| Mo | 0.40–0.60 |
Mechanical properties
Typical values at room temperature per EN standard.
| Property | Value |
|---|---|
| Yield strength Rp0.2 (t ≤ 16 mm) | ≥ 290 MPa |
| Tensile strength Rm | 440–590 MPa |
| Elongation A | ≥ 22 % |
| Impact energy KV | ≥ 40 J |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | EN 10216-2, EN 10028-2 |
| ASME/ASTM equivalent | ~ ASTM A335 P11/P12 |
| Material no. | 1.7335 |
| Short name / aka | Chrom-Molybdän-Stahl |
We supply 13CrMo4-5 as pipes, flanges and fittings – seamless or welded, on request with an EN 10204 3.1 / 3.2 mill certificate.
Frequently asked questions about 13CrMo4-5
What is the difference between 13CrMo4-5 and 16Mo3?
13CrMo4-5 is additionally chromium-alloyed and usable up to approx. 570 °C – higher than 16Mo3 (~530 °C).
Does 13CrMo4-5 need heat treatment?
When welding, preheating and usually a post-weld heat treatment (PWHT) are required.
Request 13CrMo4-5?
Grade, standard, size, pressure rating and quantity are enough – on request with an EN 10204 3.1 / 3.2 mill certificate. Your quote usually the same day.
All data are typical values per the relevant EN standards for first orientation – without warranty. The applicable standard and the mill certificate of the delivery are decisive.