S41425 (UNS S41425), also designated EN 1.4415 / X2CrNiMoV13-5-2, is a low-carbon martensitic stainless steel combining high strength, good toughness and corrosion resistance. FUSHUN METAL supplies this grade under ISO 9001 and AS9120B quality systems.
Introduction to S41425 / 1.4415 / X2CrNiMoV13-5-2
This grade is widely used in aerospace, oil & gas, power generation, marine and chemical processing. Its low carbon content and Mo-V additions improve tempering resistance and sulfide stress cracking resistance compared with conventional 13Cr steels. FUSHUN METAL controls melting, forging, rolling, heat treatment and testing with full mill traceability under ISO 9001 and AS9120B.
Similar Grades to S41425 / 1.4415 / X2CrNiMoV13-5-2
| Grade | ASTM | AMS | EN | DIN | GOST | JIS |
|---|---|---|---|---|---|---|
| S41425 / 1.4415 | A276 / A479 / A182 | — | 10088-3 1.4415 | X2CrNiMoV13-5-2 | — | — |
| 1.4418 / S41500 | A276 / A479 | — | 10088-3 1.4418 | X4CrNiMo16-5-1 | — | — |
| 15-5PH / S15500 | A564 / A693 | 5659 | 10088-3 1.4545 | X5CrNiCu15-5 | — | SUS XM-12 |
| 17-4PH / S17400 | A564 / A693 | 5643 | 10088-3 1.4542 | X5CrNiCuNb16-4 | — | SUS630 |
FUSHUN METAL maintains dual-certified inventory for S41425 / 1.4415 and can provide ASTM/EN inspection certificates, PMI and traceability.
Applications of S41425 / 1.4415 Components
FUSHUN METAL supplies S41425 for mission-critical parts. Typical parts by industry:
Valve stems, pump shafts, compressor rotors, wellhead components, fasteners.
Actuator shafts, landing gear components, hydraulic fittings, turbine blades.
Steam turbine blades, bolts, rotor shafts, rings.
Propeller shafts, rudder stocks, seawater pump parts.
Mixer shafts, valve bodies, seals, high-pressure fittings.
High-strength fasteners, gears, shafts, molds.
FUSHUN METAL Supply Range for S41425 / 1.4415
FUSHUN METAL stocks and processes S41425 in the following sizes:
| Product Form | Size Range | Length |
|---|---|---|
| Hot rolled round bar | 10 – 500 mm | 3,000 – 9,000 mm |
| Hot rolled flat bar | Thickness 8 – 120 mm, Width 50 – 610 mm | 3,000 – 6,000 mm |
| Forged round bar | 100 – 1,200 mm | 2,000 – 8,000 mm |
| Forged flat / block | Thickness 80 – 800 mm, Width 200 – 2,000 mm | 1,500 – 6,000 mm |
FUSHUN METAL can provide peeled, rough turned, ground or cut-to-length bars under ISO 9001:2015 and AS9120B controls.
Chemical Composition of S41425 / 1.4415 / X2CrNiMoV13-5-2
Typical / specification composition according to ASTM A276 / A479 and EN 10088-3:
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | V |
|---|---|---|---|---|---|---|---|---|---|
| Weight % | ≤0.05 | ≤0.50 | 0.50–1.00 | ≤0.030 | ≤0.005 | 12.0–14.0 | 4.0–6.0 | 1.5–2.5 | 0.20–0.50 |
FUSHUN METAL verifies each heat with optical emission spectroscopy and reports traceable mill test certificates.
Mechanical Properties of S41425 / 1.4415 After Heat Treatment
Typical values after solution treatment + tempering (quenched and tempered condition):
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Reduction of Area (%) | Hardness |
|---|---|---|---|---|---|
| Q&T 600°C | 780 – 930 | 620 – 760 | 18 – 22 | 55 – 65 | 24 – 32 HRC |
| Normalized + tempered | 760 – 900 | 600 – 720 | 17 – 21 | 50 – 60 | 23 – 30 HRC |
FUSHUN METAL can perform mechanical testing, impact tests and hardness checks according to ASTM A370 / EN ISO 6892-1.
FAQ About S41425 / 1.4415 / X2CrNiMoV13-5-2
What is S41425 used for?
S41425 is used for high-strength corrosion-resistant parts such as pump shafts, valve stems, compressor rotors, turbine blades and aerospace actuator components.
Is S41425 corrosion resistant?
Yes, it offers better corrosion resistance than standard 13Cr martensitic grades, especially in CO2 and mild sour environments when properly heat treated.
Can FUSHUN METAL supply with ISO 9001 and AS9120B certificates?
Yes, every S41425 shipment from FUSHUN METAL is supported by ISO 9001:2015 and AS9120B certified quality systems, mill test certificates and full traceability.
What is the difference between S41425 and 1.4418?
S41425 contains vanadium and has a leaner Cr-Ni-Mo balance, giving improved tempering resistance and higher strength potential, while 1.4418 offers higher toughness in thicker sections.
Does FUSHUN METAL export S41425 bars?
Yes, FUSHUN METAL supplies hot rolled, forged, peeled and ground S41425 / 1.4415 bars to international customers with export documentation.
