ASTM A455 Mechanical behavior,ASTM A455 Heat Treatment

ASTM A455 is a steel of 16. Steel for Boilers and Pressure Vessels,good performance,Provides a ASTM A455 brief description of A455 and some properties.

ASTM A455 Mechanical behavior:
Tensile strength σb (MN/m2)> = 550
Yield strength σs (MN/m2)> = 200
Elongation δ5 (%)> = 40
Shrinkage ψ (%)> = 55
Hardness: ≤ 187HB; ≤ 90HRB; ≤ 200HV

ASTM A455 Heat Treatment:

Conditions A - 1900 (1038 C) for 30 minutes and cool below 60 F (16 ℃) for a complete martensite transformation. CONDITION H 950 - Treat Condition 1 hour, air cool material in 900 F (482 C) .. condition H925, H1025, H1075, H1100, H1150 soak 4 hours solution treated material at a specific temperature, air cool, CONDITION H1150M, soak solution treated material at 1400 ℉ (760 C), 2 hours, air cool, then re-heat to 1150 F for 4 hours and air cooling (620 C).

ASTM A455 Welding performance:

Successful common fusion and resistance welding method, this should not be added to alloy oxyacetylene welding. If necessary, I suggest AWS E/ER630 filler metal.

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