What is en 1.4122 material ?
EN 1.4122 is a martensitic stainless steel (also called X39CrMo17-1) known for its high strength, hardness, and good wear resistance after heat treatment, containing significant Carbon (0.33-0.45%) and Chromium (15.5-17.5%), making it suitable for demanding mechanical parts like pump shafts, valves, and extruders, especially where hardness above 50 HRC is needed, but with less corrosion resistance than austenitic grades.
What is 1.4122 material equivalent to?
Material 1.4122 (X39CrMo17-1) is a high-chromium, molybdenum-alloyed martensitic stainless steel, with key equivalents including X39CrMo17-1 (EN), X38CrMo16 (ISO), Z38CD16-01 (NF), and 420RM (AISI), known for good hardness, wear resistance, polishability, and moderate corrosion resistance, making it suitable for knives, gears, and surgical tools, though it's not for saltwater use.
What is the chemical composition of 1.4122 stainless steel?
1.4122 stainless steel (also known as X39CrMo17-1) is a martensitic stainless steel whose main components include carbon (0.33-0.45%), chromium (15.5-17.5%), and molybdenum (0.8-1.3%). It possesses good hardness, wear resistance, and moderate corrosion resistance, making it suitable for manufacturing products such as knives and cutting tools.
|
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 |
- |
1.4122 stainless steel 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
1.4122 stainless steel 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
Is 1.4122 stainless steel magnetic?
Yes, 1.4122 stainless steel (also known as X39CrMo17-1) is magnetic because it is a martensitic stainless steel, meaning it becomes ferromagnetic and hardenable through heat treatment, unlike non-magnetic austenitic grades like 304. It's chosen for applications needing strength, wear resistance, and magnetism, such as cutting tools, shafts, and pump parts.
What is the hardness of 1.4122 material?
Material 1.4122 (X39CrMo17-1) is a martensitic stainless steel whose hardness varies significantly with heat treatment, typically ranging from around 27-33 HRC in delivery condition (often annealed) up to over 50 HRC after hardening and tempering, commonly supplied in the QT750 condition (min 750 MPa tensile) with hardness around 30 HRC (max 325 HB) but capable of much higher levels, making it suitable for wear applications like cutting tools and pump parts.
1.4122 vs 316
1.4122 (martensitic) and 316 (austenitic) stainless steels differ mainly in structure and properties: 316 offers superior corrosion resistance (especially marine/chemical) due to higher Nickel & Molybdenum, ideal for food/medical, while 1.4122 provides higher strength and hardness (heat-treatable), making it great for tools and cutlery needing wear resistance, but it's less corrosion-resistant than 316.
If you have project requirements for 1.4112 420 stainless steel bars, please feel free to place an order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, and wires. For detailed chemical composition and free samples, please contact our factory immediately. We offer competitive prices and excellent service.
