What is 1.4432 stainless steel equivalent to?

What material is en 1.4432?

EN 1.4432 (X2CrNiMo17-12-3) is an austenitic chromium-nickel-molybdenum stainless steel often classified as a superior version of AISI 316L. It is designed for high corrosion resistance, particularly in chloride-containing and non-oxidizing acid environments, due to its increased molybdenum content (typically 2.5–3.0%).

 

What material is 1.4432 equivalent to?

EN 1.4432 (X2CrNiMo17-12-3) is a high-corrosion-resistant, low-carbon, molybdenum-alloyed austenitic stainless steel. Its primary equivalent is AISI 316L (specifically UNS S31603), often referred to as a refined or improved version of 316L with higher molybdenum content for better pitting resistance, particularly in chemical environments.

 

1.4432 Stainless Steel chemical composition

C	Mn	Cr	Ni	Mo	N
Typical	0.02		16.9	10.7	2.6
ASME II A SA-240	≤0.08	≤2.00	16.0-18.0	10.0-14.0	2.00-3.00	≤0.10
EN 10028-7	≤0.030	≤2.00	16.5-18.5	10.5-13.0	2.50-3.00	≤0.10
EN 10088-2	≤0.030	≤2.0	16.5-18.5	10.5-13.0	2.5-3.0	≤0.10
EN 10088-3	≤0.030	≤2.00	16.5-18.5	10.5-13.0	2.50-3.00	≤0.10
EN 10088-3	≤0.030	≤2.00	17.0-19.0	12.5-15.0	2.50-3.00	≤0.10
EN 10088-4	≤0.030	≤2.0	16.5-18.5	10.5-13.0	2.5-3.0	≤0.10

 

1.4432 Stainless Steel Mechanical Properties

Standard	Rp0.2	Rp1.0	Rm	Elongation	Rockwell	HB
	MPa	MPa	MPa	%
Product type:1.4432  Cold rolled coil and sheet
Typical (thickness 1 mm)	300	330	620	70
ASME II A SA-240	≥ 205		≥ 515			≤ 217
EN 10028-7	≥ 240	≥ 270	550-700	≥ 40
EN 10088-2	≥ 240	≥ 270	550-700	≥ 40
EN 10088-4	≥ 240	≥ 270	550-700	≥ 40
Product type: 1.4432 Hot rolled coil and sheet
Typical (thickness 4 mm)	315	360	615	50		165
ASME II A SA-240	≥ 205		≥ 515			≤ 217
EN 10028-7	≥ 240	≥ 270	550-700	≥ 40
EN 10088-2	≥ 240	≥ 270	550-700	≥ 40
EN 10088-4	≥ 240	≥ 270	550-700	≥ 40

 

1.4432 stainless steel  Physical Properties

Density	Modulus of elasticity	Thermal exp. at 100 °C	Thermal conductivity	Thermal capacity	Electrical resistance	Magnetizable
kg/dm3	GPa	10-6/°C	W/m°C	J/kg°C	µΩm
8.0	200	16,0	15	500	0.75	No

 

1.4432 Stainless Steel Corrosion Resistance:

1.4432 (X2CrNiMo17-12-3) is a high-performance austenitic stainless steel with excellent corrosion resistance, particularly in chloride-containing and acidic environments, owing to its high molybdenum (2.25–3.0%) and chromium content. It offers superior pitting and crevice corrosion resistance compared to standard 316L (1.4404), with high resistance to intergranular corrosion.

1.4432 Stainless Steel Workability:

1.4432 (X2CrNiMo17-12-3) is a low-carbon, high-molybdenum (2.5-3.0%) austenitic stainless steel with excellent weldability, good formability, and high corrosion resistance, similar to 316L but better suited for acidic/chloride environments. It is commonly used for complex fabrications in chemical and pharmaceutical applications.

1.4432 Stainless Steel Application:

Chemical & Petrochemical Industry: Used in reactors, heat exchangers, and storage tanks for acidic or chloride-rich compounds.
Pharmaceutical & Medical Engineering: Due to its excellent resistance to localized corrosion (pitting/crevice), it is used in production equipment and, in some cases, medical devices.
Marine & Offshore: Suitable for structural parts, pipes, and fittings exposed to high concentrations of chlorides and saltwater.

 

If you have project requirements for 1.4432 stainless steel bars, we welcome your 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, wires, etc. For detailed chemical composition and free samples, please contact our factory immediately. We offer competitive prices and excellent service.