AFM 250 Hardfacing Wire
AFM 250 is for building-up mild and low alloy steel parts to within 3/16”-3/8” of their original size. Weld deposits will be part ferritic-part martensitic in structure. AFM 250 weld deposits have good compressive strength and resistance to plastic deformation. Weld deposits are easily machined in the “as welded” position. An excellent underlayment prior to hardsurfacing. Very good impact resistance; poor abrasion resistance.

AFM-300 Hardfacing Wire
AFM 300 is similar to AFM 250 in weld deposit structure and uses. AFM 300 offers a slightly harder weld deposit than AFM 250 and subsequently it is often used in applications where a hardsurfacing layer is not applied over the AFM 300 deposit. Very good impact resistance; poor abrasion resistance.

AFM-350 Hardfacing Wire
AFM 350 has a low alloy deposit that is martensitic in structure. It is machinable and forgeable. A good balance of impact resistance and abrasion resistance as well as hardness make AFM 350 an excellent choice where only one wire is desired for build-up and hardsurfacing. (Not to be used as an underlayment prior to subsequent hardfacing). Very good impact resistance; fair abrasion resistance.

AFM-450 Hardfacing Wire
AFM 450 is designed for metal to metal abrasion involving impact such as rolling or sliding parts in earth moving equipment where lubrication is not possible. The weld deposits of AFM 450 are martensitic in structure. Very good impact resistance; good abrasion resistance.

AFM-700 Hardfacing Wire
AFM 700 offers a harder weld deposit than AFM 600, but lacks the corrosion resistance. Primarily used for high metal to metal abrasion. Weld deposits are martensitic in structure and will work harden when put into service. Excellent impact resistance; excellent abrasion resistance.