Steel 25CD4S
1.7218 - 25CrMo4 - FLE-PL1502
The 25CD4S steel alloy, also known by its DIN designation 25CrMo4, is a versatile and high-performance heat-treatable steel, ideal for applications demanding strength and reliability. Low-alloyed with chromium and molybdenum, it exhibits good hardenability and excellent tensile strength, in addition to being suitable for welding and forming processes.
Available shapes :
Order 25CD4S Online
Select the desired form, standard, or specification and place your order with one click. A member of our sales team will contact you promptly to finalize your order.
Chemical composition of 25CD4S
The variations in its chemical composition for aerospace.
| % | C Carbon | Cr Chromium | Mn Manganese | Mo Molybdenum | Ni Nickel | P Phosphorus | S Sulfur | Si Silicon |
|---|---|---|---|---|---|---|---|---|
| Min. | 0.22 | 0.90 | 0.50 | 0.15 | <0.00 | <0.00 | <0.00 | 0.10 |
| Max. | 0.29 | 1.20 | 0.80 | 0.25 | 0.30 | 0.020 | 0.015 | 0.25 |
Related steel alloys
12NC12, FE-PL61
ROUND BAR
15CDV6, 15CrMoV6, 1.7734, 1.7736, AIR 9160
SQUARE BAR, RECTANGULAR BAR, ROUND BAR, WIRE, SHEET, ROUND TUBE
16NCD13, 15NiCrM013
ROUND BAR
300M, A646, K44220
SQUARE BAR, ROUND BAR
30CD12, 32CrMo12
ROUND BAR
30CND8
ROUND BAR
30NCD16, 1.6747, 30NiCrMo16-6, FE-PL2107, 30Ni4CrMoA
SQUARE BAR, RECTANGULAR BAR, ROUND BAR
32CDV13, 33CrMoV12
ROUND BAR
35CD4, 36CrMo4
ROUND BAR, ROUND TUBE
35NC6, 35NiCr6
SQUARE BAR, HEXAGONAL BAR, RECTANGULAR BAR, ROUND BAR, WIRE
35NCD16, 1.6773, 36NiCrMo16, FE-PL2108
SQUARE BAR, RECTANGULAR BAR, ROUND BAR
40CAD6-10
ROUND BAR
40CDV12
PROFILE
40NCD7, 40NiCrMo7
ROUND BAR
42CD4
ROUND BAR
45SCD6
ROUND BAR
C75S
SHEET
DC04, Fe P04, St 14, ES
SHEET
E15CDV6
ROUND BAR, SHEET
E16NCD13
ROUND BAR
E32CDV13
RECTANGULAR BAR, ROUND BAR
E35NCD16
ROUND BAR
E40CDV12
ROUND BAR
E4330, 4330 Mod, A646 Grade 5
ROUND BAR
FER PUR
SHEET
GENRE STUB
ROUND BAR
S145F
SQUARE BAR, RECTANGULAR BAR
S145H
ROUND BAR
S534
SHEET
S97D
ROUND BAR
S98D
ROUND BAR
S99
ROUND BAR
X210CR12
ROUND BAR
X30Cr13, Z30C13
ROUND BAR
XC18S
ROUND BAR, SHEET, ROUND TUBE
XC38
ROUND BAR
Z230KDWVC11
ROUND BAR
Key properties
The most remarkable properties of this steel alloy
Ductility
≥10%
Tensile Strength
640-1080 MPa
Impact Toughness
≥700 kJ/m²
Yield Strength
≥410 MPa
How 25CD4S is used in aerospace
The practical applications of this steel in aircraft construction.
Reinforcement bars
25CD4S reinforcement bars are used in various parts of an aircraft's structure, particularly in the wings. They help strengthen the spars or ribs to better withstand loads.
Tubular chassis
Composed of an assembly of welded tubes forming a three-dimensional structure, this aerospace-grade steel is perfectly suited for this application. It is typically used in this context for ultralight aircraft (ULMs).
Reinforcements
Besides the wings, 25CD4S is also used as engine mounts for ultralight aircraft (ULMs). Since the introduction of the AIR 9160 standard, this grade has been replaced by a more advanced steel: the 15CDV6 alloy.
Optimizing the use of 25CD4S : treatments, regulations, and options.
Applications of
25CD4S steel
How it is used in various industries.
