| 品级 | 粒 度 | | 目数mesh | 毫米mm | 微米μm | | GZ5-10f | -5~+10 | 4.000-2.000 | 4000-2000 | | GZ10-20f | -10~+20 | 2.000-0.850 | 2000-850 | | GZ20-30f | -20~+30 | 0.850-0.600 | 850-600 | | GZ30-40f | -30~+40 | 0.600-0.425 | 600-425 | | GZ40-60f | -40~+60 | 0.425-0.250 | 425-250 | | GZ60-80f | -60~+80 | 0.250-0.180 | 250-180 | | GZ80-100f | -80~+100 | 0.180-0.140 | 180-140 | | GZ100-200f | -100~+200 | 0.140-0.075 | 140-75 | | GZ200-400f | -200~+400 | 0.075-0.034 | 75-34 | | | 元素 | 标准 | 典型值 | | W | 95-96 | 95-96 | | total carbon | 3.8-4.0 | 3.8-4.0 | | free carbon | ≤0.08 | ≤0.02 | | Fe | ≤0.5 | ≤0.3 | | Cr | ≤0.2 | ≤0.05 | | V | ≤0.2 | ≤0.01 | | Ti | ≤0.1 | ≤0.01 | | Mo+Co+Ni | ≤0.3 | ≤0.05 | |
