440F Stainless Steel | Stainless Steel Supply – Hengqiao(Shanghai) International Trading Limited

440F Stainless Steel | Stainless Steel Supply

440F stainless steel is a type of martensitic stainless steel that boasts high carbon and chromium content, resulting in exceptional strength, hardness, and resistance to wear, corrosion, and high temperatures. Due to its outstanding properties, it is a favored material for creating parts that require robust hardness and corrosion resistance, such as valves, bearings, and blades. Furthermore, this stainless steel is straightforward to machine, making it a popular choice in the manufacturing industry. With a maximum hardness of approximately 60 HRC, 440F stainless steel is considered an exceptionally hard material.

Chemical composition

Element%	C	Si	Mn	P	S	Cr	Mo	Ni
min	0.95	–	–	–	–	16	–	–
max	1.2	1	1	0.04	0.03	18	0.75	0.5

Note: These values are approximate

Mechanical properties

Tensile strength		Yield strength		Elongation		Hardness
1170-1310 MPa		1050-1180 MPa		10-20%		57-60 HRC

Note: These values are approximate

Physical properties

Property	Value
Density	7.7 g/cm³
Coefficient of thermal expansion	10.4 x 10^-6 /K (20-100°C)
Thermal conductivity	24 W/(m·K) (100°C)
Specific heat capacity	460 J/(kg·K) (0-100°C)
Electrical resistivity	0.60 x 10^-6 Ω·m
Magnetic properties	High magnetic permeability,

Note: These values are approximate

Our company: Hengqiao(Shanghai) International Trading Limited

As a premium supplier of stainless steel, we offer a wide range of grades, sizes and finishes to suit your needs.
Size: according to customer requirements
Standards: GB, ASTM, EN, JIS, etc.
Coil/Tube/Pipe/Sheet/Strip/wire/Bar/Channel
Austenitic type
Ferritic type
Martensitic type
Looking forward to your inquiry！