冷作模具钢COLD WORK
TOOL STEELS
HIGH TOUGHNESS
WEAR-RESISTING STEEL
A8 Mod ified 高韧性耐磨铬钢
特性&应用
韧性佳，耐磨损，具有很好的稳定性。一般应用于冲压模、冲头、气动工具、卡爪刀、铁锤、热轧卷、热作及冷作刀具。
Properties&Applications
Lt is characterized by a combination of
very good toughness, intermediate wear resistance, and excellent dimensional
stability in heat treatment. Typical applications include punches, drift pins,
pneumatic tools, chuck jaws, hammers, hot rolls, and hot and cold shear knives.
牌号（Grade) | 化学成份（Chemical Composition) |
C | Si | Mn | Cr | Mo | V | P | S | W |
中国（GB） | Cr8Mo2VSi | 0.90~1.05 | 0.80~1.10 | 0.20~0.50 | 7.80~8.5 | 1.80~2.10 | 0.15~0.35 | ≤0.030 | ≤0.030 | - |
美国（ASTM) | A8 | 0.50~0.60 | 0.75~1.10 | 0.20~0.50 | 4.75~5.50 | 1.15~1.65 | - | ≤0.030 | ≤0.030 | 1.00~1.50 |
德国（DIN) | 1.2631 | 0.45~0.55 | 0.80~1.00 | 0.40~0.60 | 8.00~9.00 | 1.10~1.30 | - | ≤0.035 | ≤0.035 | 1.00~1.30 |
日本（JIS) | DC-53 | 0.90~1.05 | 0.80~1.10 | 0.20~0.50 | 7.80~8.50 | 1.80~2.10 | 0.15~0.35 | ≤0.030 | ≤0.030 | - |
Dimension | Rounds(Diameter:mm) | Forged flats(Size:mm) |
Hot rolled | forged | | EAF | EAR |
12-50 | EAF | ESR | Thickness | 20-200 | 20-350 |
50-200 | 50-360 | Width | 105-510 | 510max |
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