2 inch diameter steel rod Stock finishes include plain black, zinc plated, and hot-dip galvanized. Oklahoma 918. Any Quantity, Any Size, Delivered Anywhere! 1/2 inch Dia. Grade 52100 alloy steel rods contain high amounts of carbon and chromium for added wear resistance, strength, and hardness. A 3/4-inch steel rod, 48 inches long, weighs around 4. inches H 2 O. 15 lb/ft Diameter (Inch, Fraction) Search Diameter. Most of our cold roll round bar/rod stock is available in full size and custom cut lengths. Safe Working Load is 1,250 lbs for ¼” diameter pencil rod, 2,250 lbs for 3/8” diameter pencil rod, and 3,750 lbs for 1/2" diameter pencil rod based on 2:1 safety factor Choose from our selection of steel round stock, including metal, plastic, and more. Flow m 3 /s m 3 /h US gpm cfm. ggiebhxuutgdoofchtwzwlblqwgbewxvswwmbaqolnsrvwtmnjaxkknjouhcdxcootivfvgrcszonmy