In Friday afternoon letters sent to customers, both Nucor Tubular Products and Atlas Tube announced they'll be raising pricing on all new orders for HSS, pipe, mechanical and piling products by $5.00 cwt. ($110/mt or $100/nt), effective with all new orders. According to the mills, the latest increase is attributed to several factors, such as rising raw material costs, strong demand, and the volatility of transportation costs.