Steel Stock list, Flat bars Steel Ex-stock, Suppliers Steel Inventory Wire rod from Steel melting (ESR refined), Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test, Cold working or Machined. DIN 115W8 Tool Steel Flat Bar W-Nr 1.2442 Ex-stock. DIN X210CrW12 Tool Steel Round Bar W- Nr 1.2436