Forged steel bar--AISI/SAE 4140, 4340, 8620, 8640, 5120, 5140, etc 1. Dia: 100mm-1200mm 2. Length: 3-12m 3. Process: EAF + LF + VD 4. Heat treatment: Normalized / Annealed / Quenched / tempered 5. Delivery condition: Hot forged, black surface or Turned (optional), rough machined(optional) 6. Technical Data: Chemical Composition, Physical Properties and Mechanical Testing according to the customer's requirement 7. Test: Ultrasonic test according to SEP 1921-84 G3 C/c For more information, please contact with us! Qilu Special Steel Co., Ltd Hunan Qilu Special Steel Trading Co., Ltd
