Steel for making very large pipe molds.

摘要

Alloy comprises (in wt.%): 0.12-0.18 esp. 0.15% C, 0.70-0.95 esp. 0.85% Mn, 0.008% max P, 0.009% S, 0.20-0.35 esp. 0.25% Si, 1.0-1.25 esp. 1.10% Ni, 1.85-2.25 esp. 2.00% Cr, 0.60-0.75 esp. 0.56% Mo, 0.03-0.08 esp. 0.05% V and balance Fe.