China · YB

35

YB/T 037:2005 — Quality structure cold-draw flat steels

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YB/T 036.7:1992YB/T 036.7
YB 4068:1991YB 4068
YB/T 024:2008Steel strips for cable armouring
YB/T 037:2005Quality structure cold-draw flat steels
YB/T 4222:2010Coated steel wire for overhead line helical fittings
YB/T 171:2014Special shaped steel tubes
YB/T 5186:1993Hexagonal steel wire
YB/T 037:1993Quality structure cold-draw flat steels
YB/T 056:1994Resilient card wire
YB/T 5346:2006Cold drawn special shaped steel bar
YB/T 5222:2014Quality hot rolled and forged carbon structural steel round tube blank
YB/T 003:1991YB/T 003
YB/T 156:1999Steel wires for middle strength prestressed concrete
YB/T 5303:2010Carbon constructional quality steel wires
YB 4096:1996YB 4096
YB/T 025:2002Steel strips for packing
YB/T 171:2000Special shaped steel tubes
YB/T 4149:2006Continuously cast round billet for seamless steel tube rolling
YB/T 5222:2004Quality hot rolled and forged carbon structural steel round tube blank
YB/T 5222:1993Quality hot rolled and forged carbon structural steel round tube blank
YB/T 5303:2006Carbon constructional quality steel wires

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Element	min	max
C	0.32	0.39
Cr		0.25
Cu		0.25
Mn	0.5	0.8
Ni		0.3
Si	0.17	0.37

Heat treatment / condition	Tensile strength	Elongation	Reduction of area	Hardness
flats, cold drawn	≥590	≥6.5	≥35	HB ≤241
flats, annealed	≥470	≥15	≥45
flats, annealed, tempered or normalized tempered				HB ≤187