high strength(Rem≧960mpa), high tenacity(elongation A5%≧40), high & low-temperature resistance(KV2@-80℃≧100J), high pressure bearing, light weight, corrosion resistance, wear resistance etc.Widely use for offshore, ship building, harbor machinery, oil drilling, railway, truck, special vehicle, bridge, steel structure building, process line and pressure vessel etc.

round steel pipe size range:OD 6-820mm, WT: 0.8-55mm