Most metal fence posts can be reused. This is especially true for posts made of aluminum or steel. However, posts made of iron may be more difficult to remove if they are fixed into concrete, plus may not be as strong if they are reused. If you are planning to reuse metal fence posts, it is important to inspect them for damage before attempting to remove them from the ground. Posts that are bent or otherwise damaged may need to be replaced before they can be reused. metal fencing is a popular choice for both residential and commercial applications. Metal fence posts are durable and easy to maintain, making them an ideal choice for many property owners.