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The Steel Supply Company Abbreviations

BAR

• SBQ: Special Bar Quality
• TGP: Turned Ground & Polished
• CDGP: Cold Drawn Ground & Polished
• Q&T: Quench & Temper
• BHN: Brinell Hardness Number
• HRc: Rockwell Hardness – C Scale
• HRb: Rockwell Hardness – B Scale
• PSQ: Pump Shaft Quality
• BSQ: Bearing Shaft Quality
• PH: Precipitation Hardened

TUBE

• DOM: Drawn Over Mandrel
• CDSM: Cold Drawn Seamless Mechanical
• HFSM: Hot Finish Seamless Mechanical
• ERW: Electric Resistance Welded
• I.D.: Inside Diameter
• O.D.: Outside Diameter
• CDBW : Cold Drawn Butt Welded
• HSS: Hollow Structural Section
• PVQ: Pressure Vessel Quality
• SRA: Stress Relief Anneal