November 7, 2018
ASTM A53 meliputi lancar dan dikimpal paip keluli tergalvani hitam dan panas-menurun. Paip sering lebih awal seperti berikut: Perihalan Barangan Kuantiti Unit A, Perihalan Barangan Kuantiti Unit A, ERW Gred A B Komposisi kimia C Mn P S ≤0.25% ≤0.95% ≤0.05% ≤0.045% Cu Ni Cr Mo ≤0.4% ≤0.4% ≤0.4% ≤0.15% V [...]