Products
X39CrMo17-1 Steel - Nr.1.4122
High-Temperature Resistant Martensitic Stainless Steel
Steel similar to X39Cr13 (420C) but with the addition of molybdenum, which increases its resistance to corrosion at high temperature.
References and Comparable Standards
Standard Reference: EN 10088-3: 2014 (Hot-rolled and bright products)
| EUROPE | ITALY | GERMANY | FRANCE | UK | USA | ||
|---|---|---|---|---|---|---|---|
|
EN 10088-3: 2005 |
(UNI 6900: 71) |
(DIN 17440 - 85) |
(NF A 35-574-90) |
(BS 970 pt. 3-91) | AISI | ||
| Grade | N° | Werkstoff | N° | ||||
| X39CrMo17-1 | 1.4122 | - | - | - | - | - | - |
Chemical Composition (Cast Analysis) (%)
| C | Si / max | Mn / max | P / max | S / max | Cr | Mo | Ni / max |
|---|---|---|---|---|---|---|---|
| 0,33÷0,45 | 1,00 | 1,50 | 0,040 | 0,030 | 15,5÷17,5 | 0,80÷1,30 | 1,00 |
Mechanical Properties – Rough turned (1X) in the annealed condition
| Size (mm) | Heat treatment | Hardness HB max* | Rp 0,2 (MPa) min | Rm (MPa) | A5 (%) min |
|---|---|---|---|---|---|
| d≤100 | Annealed (+A) | 280 | - | 900 max | - |
| d≤60 | Quenched + Tempered (+QT 750) | - | 550 | 750÷950 | 15 |
* only for guidance
Mechanical Properties – Cold drawn (2H, 2B) and ground bars (2G) in the solution annealed condition
| Size (mm) | Annealed | Quenched + Tempered | |||||
|---|---|---|---|---|---|---|---|
| Rm (MPa) max | HB max* | Heat treatment | Rp 0,2 (MPa) min | Rm (MPa) max | A5 (%) min** | KV (J) min | |
| d≤10 | 1000 | 340 | Quenched + Tempered (+QT750) | 650 | 800÷1050 | 8 | - |
| 10<d≤16 | 1000 | 340 | 600 | 800÷1050 | 8 | - | |
| 16<d≤40 | 980 | 310 | 550 | 750÷1000 | 10 | 14 | |
| 40<d≤63 | 930 | 290 | 550 | 750÷950 | 12 | 14 | |
| 63<d≤100 | 900 | 280 | 550 | 750÷950 | 12 | 10 | |
* for reference only
** values valid only for size ≥5 mm
Mechanical Properties – Cold drawn wire and coils (2H)
| Tensile strength levels | Rm (MPa) |
|---|---|
| +C 500 | 500÷700 |
| +C 650 | 650÷850 |
| +C 800 | 800÷1000 |
| +C 900 | 900÷1100 |
Note: the desired tensile strength level shall be evaluated depending on diameter required
Mechanical Properties – Cold drawn wire and coils in the solution annealed condition (2D)
| Size | A (%) max | Rm (MPa) max |
|---|---|---|
| 0,50≤d≤1,00 | 10 | 1100 |
| 1,00≤d≤3,00 | 10 | 1050 |
| 3,00≤d≤5,00 | 10 | 1000 |
| 5,00≤d≤16,00 | 15 | 950 |
Note: If skin passed, Rm might be increased by up to 50 MPa
Working Temperatures Recommended
| Operation | °C |
|---|---|
| Hot forgings deformation | 800÷1100 |
| Annealing (furnace, air) | 750÷850 |
| Quenching in oil | 980÷1060 |
| Tempering (QT 750) | 650÷750 |
