| 发明名称 |
IMPACT RESISTANT DUCTILE IRON CASTINGS |
| 摘要 |
A highly impact resistant ductile iron casting is made from a specified high nickel content ductile iron composition and post-treated with a specified heating and cooling profile to achieve an elongation exceeding the ASTM A536 (“60-40-18”) standard, and meeting or exceeding Charpy V Notch impact resistance at −20° F. of greater than 11.0 ft. lbs. |
| 申请公布号 |
US2017073784(A1) |
申请公布日期 |
2017.03.16 |
| 申请号 |
US201514850033 |
申请日期 |
2015.09.10 |
| 申请人 |
Strato, Inc. |
发明人 |
SOWDEN Ike S.;REILING Jason |
| 分类号 |
C21D5/04;C21D9/00;C22C37/08;B22D30/00;B22D15/00;C22C37/10;C21D9/40;B22D27/04 |
主分类号 |
C21D5/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A ductile iron alloy composition having carbon present in a range of 3.75% to 3.93%;
manganese present in a range of 0.10% to 0.19%; phosphorus present in an amount up to 0.032%; sulfur present in an amount up to 0.021%; silicon present in a range of 1.95% to 2.39%; nickel present in a range of 0.81% to 0.99%; copper present in a range of 0.02% to 0.09%; and having a Carbon Equivalence greater than 4.3; the iron composition having a tensile strength of at least 58,000 psi; yield strength at least 38,000 psi; elongation at least 21%; and Charpy V notch impact resistance at −20° F. of at least 11 ft. lbs. |
| 地址 |
Piscataway NJ US |
