ASTM A838 type 1
2020-04-14 10:22:01 Origin： Remark：0 Click：
The alloy is usually produced by BEF + AOD or EAF
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black / bright in the annealed condition.
Final heat treatment - solution treatment / Quenched and Tempered
Round bar / flat bar / steel strip / square bar
Bright - peeled + polishing, centerless ground, precision ground
Forged - ring, tube, pipe casing, discs, shaft
Si (％): 0.30 ~ 0.70
Mn (％): ≤ 0.80
P (％)≤: 0.030
S (％)≤: 0.25 ~ 0.40
Ni (％): ≤ 0.60
Cr (％): 17.25 ~ 18.25
Mo (％): ≤ 0.50
Elongation, δ(％): 25.0
Reduction of area, ф(％): -
Mechanical parts used in the condition of corrosion resistance.
Bolt and nut, Pressure vessel.
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