13CrMo4-5 pipes – 1.7335 boiler tubes EN 10216-2
13CrMo4-5 is a chromium-molybdenum creep-resistant steel for higher temperatures than 16Mo3 – for boilers, superheaters and steam lines in power plants. ROHRLINE supplies 13CrMo4-5 pipes and tubes to EN 10216-2 with EN 10204 3.1 inspection certificates – worldwide.
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
Tell us the medium, temperature and pressure – we will check the grade with you.
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| C | 0.10–0.17 |
| Si | ≤ 0.35 |
| Mn | 0.40–0.70 |
| 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 | Chromium-molybdenum steel |
We supply 13CrMo4-5 as pipes, flanges and fittings – seamless, on request with an EN 10204 3.1 / 3.2 mill certificate.
Supply programme & machining
| Item | Details |
|---|---|
| Dimensions (pipe) | Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard |
| As flange & fitting | DN 10 to DN 1200 · PN 6 to PN 400 · Class 150 to Class 2500 to ASME B16.5 (to NPS 24), above that ASME B16.47 to Class 900 |
| Lengths & cutting | Mill lengths, sawn fixed lengths and fitting pieces from 0.1 to 12 m – sawn and bevelled |
| Minimum quantity | From a single item – from one fitting piece to the complete piping system |
| Availability | Common grades and sizes available at short notice, special sizes procured per project |
| Lead time | Standard sizes usually 3–5 working days; the binding date is confirmed with the quote |
| Machining | Sawing and bevelling, roll grooving for grooved couplings, threading to EN 10226, drilling, facing, bending with special radii |
| Surface | Blasting Sa 2½, primer and top coat, powder coating in RAL shades, galvanising to EN ISO 1461, PE coating to DIN 30670 |
| Certificates | Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request |
| Testing | Non-destructive testing by ultrasound, eddy current and X-ray, pressure test report on request |
These figures describe our supply programme. Which size is actually available in this grade is clarified with your enquiry – you usually receive the quote the same day.
We clarify availability, price and inspection certificate with your enquiry.
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.
Which dimensions and certificates does ROHRLINE supply for 13CrMo4-5?
ROHRLINE supplies 13CrMo4-5 in the following range: Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard. Documentation: Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request. Delivery worldwide; the binding date is confirmed with the quotation.
Components in 13CrMo4-5 pipes
We supply these ready-to-install parts in this grade – to your drawing, tested and documented.
Pipe spools (prefabricated piping assemblies) are piping sections…
Headers bring steam, water or gas together and distribute it again. We…
Bent tube strings for the hottest part of the boiler
The plate in which the boiler tubes end
Bent tube runs that take up or give off heat
Boiler tubes rarely arrive on site in mill lengths. We supply them…
The gas-tight wall of the furnace
Spare parts for steam, hot-water and heat recovery boilers
Special flanges, collars and pipe fittings to drawing and works…
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.