1.4749
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1.4749Chemical composition:
Cr | C | N | Mn | Si | P | S | Fe | |
Min | 23 | – | – | – | – | – | – | Bal |
Max | 27 | 0.15 | 0.25 | 1.5 | 1 | 0.04 | 0.03 |
1.4749Physical properties:
Density | 0.270 lb/in³ |
Melting point | 2640 – 2710°F |
1.4749Mechanical properties:
Temperature, °F | 70 | 1000 | 1100 | 1200 | 1300 | 1400 |
Ultimate tensile strength, ksi | 68 | 52.7 | 27.7 | 15 | 10.5 | 5 |
0.2% yield strength, ksi | 50 | 42.3 | 23 | 12 | 9 | 4 |
Elongation, % | 30 | 27 | 65 | 90 | 113 | 128 |
Hardness, Brinell | 83-93 | – | – | – | – | – |
1.4749Stainless steel characteristics:
Oxidation resistance through 2000°F
Sulfur resistance
Good thermal conductivity
Resistant to molten copper and low strength
1.4749Uses of stainless steel:
Neutral salt tank electrode
A spout for transporting molten copper alloys
Oil burner parts
combustion chamber, etc
1.4749Process performance:
Welding process: Welding can be done using traditional methods. It is helpful to warm up and adjust to 300-600°F. Austenitic weld fillers, such as HuaNickel AWS E310 or E312, are generally recommended to maximize the ductility of weld deposits.
Relevant standards:
ASTM: A 276, A 240