| CERTIFICATE OF QUALITY |
| 捆数 Bundles | 1 | 支数 Pieces | 1 | 重量 Weight | 4075kg |
| 订货单位Purchaser | |
| 合约号Contract No. | F019130C-1176 |
| 合同号Productiong No. | 2019416276 |
| 技术条件Specification | QJ/DT01.33322-2012 |
| 钢种Steel Grade | 合金工具钢Alloy Tool Steel |
| 规格Size | 220*610mm |
| 长度Length | 范围Range 2.5-5.0m |
| 交货状态DeliveryCondition | 退火Annealing |
| 加工用途Purpose of Processing | 切削加工Cutting Machining |
| 冶炼方法SmeltMethod | 电渣Electroslag |
| 生产分厂Product Plant | 3500快锻机Fast Forged Machine |
| 炉号Heat No. | 19223580048-1 |
| 母炉号ParentsHeat No. | 19203120446 |
| 1.化学成分Chemical Composition C:0.370% Mn:0.49% Si:0.31% S:0.001% P:0.007% Ni:0.08% Cr:5.07% V:0.49% Mo:2.37% Cu:0.08% |
| 2.非金属夹杂物Non-Metallic Inclusions AT:1.0/1.0 AH:0/0 BT:1.0/1.0 BH:0/0 CT:0/0 CH:0/0 DT:1.0/1.0 DH:0/0 |
| 3.晶粒度Grain Size 7/7 |
| 4.金相组织MetallurgicalStructure 显微组织Micro-Structure:AS9/AS9 带状偏析Band Segregation：合格Qualified |
| 5.试样热处理温度Sample Heat-Treatment Method 淬火温度Quanched Temperature:1030℃ 一次回火温度First Tempered Temperature:600℃ 二次回火温度Second Tempered Temperature:600℃ |