IS 1990 : 2009 STEEL RIVET AND STAY BARS FOR BOILERS   
ICS 77.140.30 ; 77.140.85                         MTD4   
Reaffirmed 2021   
1 Scope   
This standard covers the requirements for steel rivet and stay bars for use in boilers, designated as St 37 BR and St 42 BR.   
2 References   
IS 228 (All Parts)Methods of chemical analysis of steels   
IS 1387 : 1993 General requirements for the supply of metallurgical materials   
IS 1599 : 1985 Method for bend test   
IS 1608 : 2005 Metallic meterial - Tensile testing at ambient temperature