UNS S43900 EN DIN 1.4510 439 Stainless Steel Sheet 0.4-4mm 2D Surface 1250mm For Automotive Exhaust System
439 STAINLESS STEEL ALLOY
UNS: S43900
EN-DIN: 1.4510
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439 Oxidation resistance and corrosion resistance is superior to Type 409 in areas where temperatures may exceed the oxidation limit of Type 409 or where aqueous corrosion resistance, particularly to chlorides, is needed. Applications include: Tubular manifolds and other exhaust system with difficult to form exhaust components.
Nominal Composition
| C: | 0.070 max |
| Mn: | 1.0 max |
| P: | 0.040 max |
| S: | 0.030 max |
| Si: | 1.00 max |
| Cr: | 17.00 – 19.00 |
| Ni: | 0.50 max |
| Ti: | >=0.20+4(C+N) – 1.10 |
| Al: | 0.15 |
| N: | 0.040 |
| Fe: | BAL |
Physical Properties
At 70°F (At 20°C)
Density
0.278 lb./in³ / (7685 kg/m³)
Modulus of Elasticity (E)
28.4 x 10³ ksi / (193 x 10³MPa)
Electrical Resistivity
24.0 μ ohm.in / (60.0 μ ohm.cm)
Applicable Specifications
ASTM A240
Typical Mechanical Properties – Typical Room Temperature Mechanical Properties
Typical mechanical properties are based on AK source, ASTM A240
Condition
Annealed
Tensile Strength (UTS)
66 ksi (455 MPa)
0.2% YS
43 ksi (296 MPa)
Elongation% in 2” (50.8 mm)
32%
Hardness Rockwell
74 HRBW
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