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EN 1.4510 DIN SUS439M AISI 439 Stainless Steel Sheet
439 stainless steel features a balanced composition that provides a completely ferritic structure at all temperatures, ensuring excellent ductility after welding and superior resistance to intergranular corrosion. Unlike similar ferritic stainless steels such as 430 and 434 alloys, which are susceptible to brittle martensite formation and intergranular corrosion sensitivity in the as-welded condition, 439 stainless steel maintains its properties without requiring post-welding annealing.
This alloy offers exceptional resistance to stress corrosion cracking, excellent weldability, high thermal conductivity, and low thermal expansion characteristics, making it an ideal choice for various demanding applications. The close match of thermal expansion coefficients between 439 stainless steel tubes and carbon steel shells in shell and tube heat exchangers may eliminate the need for expansion joints.
With its low cobalt content compared to Type 304 stainless steel, 439 stainless steel is particularly suitable for nuclear applications. It also provides excellent oxidation and corrosion resistance for automotive exhaust system components and residential furnace primary heat exchangers where application temperatures exceed the capabilities of 409 stainless steel.
Chemical Composition of Stainless Steel 439
Grade
C
Si
Mn
P
S
Cr
Ti
439
0.070
1.00
1.00
0.040
0.030
17.00~19.00
≥ 0.20+4(C+N)min - 0.50 max
Typical Annealed State Mechanical Properties
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
Hardness (HB)
455
290
34
78
Available Product Forms
Hot-rolled wide strip
Cold-rolled wide strip
Slit strip
Cut sheets
Precision strip
We stock 439 hot and cold rolled stainless steel sheet, plate, strip, and coil in various sizes and specifications to meet your manufacturing requirements.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
500,000,000-800,000,000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h... Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h...