hot-rolled steel tolerance standard

Standard number: GB/T 709-2006

Standard name: dimension, shape, weight and allowable deviation of  hot-rolled steel and steel strip

Standard Status: Current

Implementation date: 2007-2-1

Issuing authority: General Administration of Quality Supervision, Inspection and Quarantine and Standardization Management Committee

Introduction: This standard specifies the size, shape, weight and technical conditions of hot-rolled steel and steel strips. This standard applies to single-piece rolling, steel strips and their sheared steel plates and slitted steel strips with a rolling width of not less than 600mm.

Standard number: GB 11251-1989

Standard name: Alloy structural steel hot-rolled thick steel plate

Standard Status: Current

Implementation date: 1990-1-1

Issuing department: State Technical Supervision Bureau

Introduction: This standard specifies the dimensions, shape, technical requirements, test methods, inspection rules, packaging, signs and quality certificates of alloy structural steel hot-rolled thick steel plates. This standard applies to alloy structural steel hot-rolled steel sheets with a thickness greater than 4 to 30 mm.

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