Low Alloy High Strength Steel Plate
Low Alloy High Strength Steel (HSLA for short) is a kind of weldable structure steel with low-carbon. Generally,it's carbon content less than 0.25%, compared with ordinary carbon structural steel,HSLA steel has higher yield strength and yield ratio, better hot and cold forming process and weldability, lower cold brittleness and Aging sensitivity, and has better capacity to resist corrosion of atmospheric and sea water. The content of alloying elements usually lower than 2.5%.It can be used only after hot rolling or through simple heat treatment, so these steels can be mass-produced and widely used. Steel Grade: ASTM A709/A709M: A709Gr50, A709Gr36, A709Gr50W, A709Gr HPS 50W, A709Gr HPS 70W ASTM A633/A633M: A633GrD,A633GrE,A633GrA,A633GrC EN10025-2: S235J2,S275JR,S275J0,S275J2,S355JR,S355J0,S355J2,S355K2 EN10025-3: S275N,S275NL,S355N,S355NL,S420N,S420NL,S460N,S460NL EN10025-4: S275M, S275ML, S355M, S355ML, S420M, S420ML, S460M, S460ML EN10025-6: S460Q, S500Q, S550Q, S620Q, S690Q, S890Q, S960Q, S460QL, S500QL, S550QL, S620QL, S690QL, S890QL, S960QL, S460QL1, S500QL1, S550QL1, S620QL1, S690QL1, S890QL1 ASTM A572/A572M: A572Gr42,A572Gr50,A572Gr60,A572Gr65 ASTM A573/A573M: A573Gr58,A573Gr65,A573Gr70 |
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