BUREAU OF INDIAN STANDARDS

Type/Size/Grade/Variety and Brand Name for CML No.       4100201756

Date : 19-08-2025


Brand Name :

Type/Size/Grade/Variety :

Name of the product Bright Steel Bars Product Designation As per Annex-A Treatment Condition at Delivery Soft Annealed + Cold drawn (+A+C) Product Form Special section as per profile no.2603 (Drawing no. CA4501 of 23/01/1998) and profile no. 4622 (Drawing No. PRD 28384350 REV.002) Sizes Dimensions and Tolerances as mentioned in the Special section as per profile no.2603 (Drawing no. CA4501 of 23/01/1998) and profile no. 4622 (Drawing No. PRD 28384350 REV.002) Surface Quality Class Class 4 Annex-A S. No Steel Designation / Grade Chemical Composition (%) Mechanical Properties (if any) 1. IS 9550 40NiCrMo15 C: 0.40 to 0.47 Cr: 1.6 to 2.0 Mn: 0.3 to 0.60 Mo: 0.25 to 0.45 Ni: 3.7 to 4.20 P: 0.035(Max.) S: 0.035(Max.) Si : 0.15 to 0.40 Hardness - 30 HRC Max. 2. IS 9550 CPS 17111/100Cr6 100Cr6 as per IS 17111 Hardness - 240 HB Max.