What is en 1.4122 material?
1.4122 stainless steel is a martesitic stainless steel grade, which can be hardened with heat threatment. This grade is written as 1.4122 or X39CrMo17-1 according to EN norm. 1.4122 material is usually produced according to QT750 heat threatment condition.
What is 1.4122 material equivalent to?
Material 1.4122, also known as X39CrMo17-1 (EN 10088-3), is a martensitic stainless steel similar to AISI 440C (S44004) but with a higher molybdenum content, offering enhanced corrosion resistance and wear resistance. Other equivalents or similar steels include 1.2316 (X36CrMo17) and 420RM, a brand name for 1.4122.
Properties and chemical composition of stainless steel 1.4122 / X39CrMo17-1
|
C |
Si |
Mn |
P |
S |
N |
Cr |
Cu |
Mo |
Ni |
Ti |
|---|---|---|---|---|---|---|---|---|---|---|
|
0,33 - 0,45 |
≤ 1,00 |
≤ 1,50 |
≤ 0,04 |
≤ 0,03 |
- |
15,5 - 17,5 |
- |
0,80 - 1,30 |
≤ 1,00 |
- |
Physical properties
Magnetisability: present
Density (kg/dm³): 7.7
Thermal conductivity (at 20°C): 15
Electrical resistance at room temperature (in Ω mm²/m): 0.80
Specific heat capacity (at 20°C): 430
Mechanical properties
Unless otherwise stated, the values given refer to the heat treatment condition +QT750 in the diameter range ≤ 60 (Ø in mm) and > 60 ≤ 160 (Ø in mm) at room temperature (according to EN 10088-3).
Hardness in HB in condition +A: ≤ 280
Yield strength Rp0.2 in Mpa: ≥ 550
Strength / tensile strength Rm in Mpa: 750-950 & ≤ 900 at +A
Elongation at break A in %: ≥ 12
Corrosion resistance
Due to its 17% chromium content, stainless steel 1.4122 has good corrosion resistance (PREN value 18.47 - 20.46). This is particularly the case in media with a low chlorine content and in a slightly aggressive environment. This material is also resistant to organic acids. The corrosion resistance can be improved by polishing. It is not resistant to seawater.
Welding
Stainless steel 1.4122 (X39CrMo17-1) is difficult to weld and should not normally be used for welding. If welding is unavoidable, preheating to a temperature between 300 and 400 °C is required. Subsequent tempering is also necessary. To avoid cracking, heat treatment should be carried out immediately.
Is 1.4122 stainless steel magnetic?
Material 1.4122 (X39CrMo17-1) is a martensitic stainless steel alloyed with molybdenum, offering enhanced corrosion resistance to chloride-containing environments. It features high tensile strength, excellent wear resistance, magnetic properties, and is hardenable.
Forging
The stainless steel 1.4122 has a medium forging capacity. The material must first be heated slowly to 800 °C and then quickly to a temperature of 1150 °C to 1180 °C. The forging process can then be carried out in the temperature range between 1180 °C and 950 °C. The subsequent cooling can take place in the furnace or in dry ash. This steel is rarely used for open-die forging and drop forging.
who choose us?
If you have a project need for 1.4122 stainless steel, we welcome your order. GNEE maintains a large inventory of popular products for you to choose from. We process these products into a variety of practical product forms, including sheet, coil, tube, bar, and wire. For detailed chemical composition and free samples, please contact our factory today. We offer competitive pricing and excellent service.Mail:es@gescosteel.com