BRIGHT ROUND-M1030-80.00dia
1030 is a medium tensile low hardenability carbon steel generally supplied in the cold drawn or turned and polished, or centreless ground condition, with a typical tensile strength range 500 - 850Mpa, and Brinell hardness range of 150 -245.
Characterised by good machinability, reasonable weldability with medium strength plus good ductility.
1030 has a low through hardening capability with sections up to around 40mm only generally responding satisfactorily. It is therefore generally used in the as supplied condition. Flame or induction hardening is also marginal due to its lower carbon content, nor will it respond satisfactorily to nitriding due to a lack of suitable allying elements, and carburising while possible is not generally recommended.
1030 is used by all industry sectors for applications requiring higher strength than 1020 can provide or often for applications making use of its centreless ground finish.
Typical applications are: Axles, Connecting Rods, Guide Rods, Hydraulic Shafts, Motor Shafts, Rams, Spindles, Studs etc.
COLOUR CODE: White - bar end.
FORGING: - Heat to 1100 - 1200degc maximum, hold until temperature is uniform throughout the section and commence forging. Do not forge below 900degc. Finished Forgings may be air cooled.
HEAT TREATMENT:
ANNEALING: - Heat to 850 - 900degc hold until temperature is uniform throughout the section, cool in furnace.
HARDENING: - Heat to 850 - 910degc hold until temperature is uniform throughout the section, soak for 10-15mins per 25mm of section, and quench in water or brine. Temper immediately while still hand warm.
NORMALIZING: - Heat to 870 - 920degc hold until temperature is uniform throughout the section, soak for 10-15mins per 25mm of section, and cool in still air.
STRESS RELIEVING: - Heat to 600 - 700degc hold until temperature is uniform throughout the section, soak for 1 hour per 25mm of section, and cool in still air.
NOTES ON HEAT TREATMENT: Heating temperatures, rate of heating, cooling and soaking times will vary dur to factors such as work piece size/shape, also furnace type employed, quenching medium and work piece transfer facilities etc. Please consult your heat treater for best results.
MACHINING: - 1030 has very good machinability in all as supplied conditions and all operations such as drilling, milling, tapping and turning etc. can be carried out satisfactorily as per machine manufacturers recommendations for suitable tool type, feeds and speeds.
WELDING: - 1030 is readily weldable in all as supplied conditions providing the correct procedure is employed. Following welding the work piece immediately upon cooling to hand warm should be stress relieved at 600 - 700degc if possible. NB. Welding in the hardened and tempered condition is not recommended.
WELDING PROCEDURE: - Low Carbon electrodes are recommended. Please consult your welding consumables supplier for suitable electrodes etc. Welding can be carried out by any of the standard welding processes. Pre-heat larger sections up to 300degc. Post-weld slow cool in sand, dry lime or still air.

Category: MERCHANTS & BRIGHTS