What is the difference between EN8 and MS material? Answer : EN 8 Material MS Material EN 8 material has higher tensile strength. MS material has comparatively low tensile strength. EN 8 material applicable when high strength required. MS material is applicable when high strength not required. EN 8 material contain 0.4% C MS material contain up to 0.25% C EN 8 material is use when other heat treatment process is carried out on it. MS material is use when no need of other heat treatment process on it. EN 8 material can use instead of MS material. MS material can not use instead of EN 8 material. Material is more expensive then MS. Material is less expensive then EN 8. Let me know if there is a addition of point or correction in any point.