GB 13788-2024 English PDF - Cold-Rolled Ribbed Steel Standard
Cold rolled ribbed steel bars
Standard Details
GB 13788-2024 (English Version)
- English translated version
- Sent to your email in 24h
GB 13788-2024 (Chinese Version)
- Chinese original version
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Standard Introduction
This document specifies the grades, dimensions, profiles, weights and permissible tolerances, raw materials and properties, test methods, inspection rules, packaging, marking and quality certificates of cold-rolled ribbed steel bars (hereinafter referred to as steel bars).
This document applies to cold-rolled ribbed steel bars used in ordinary reinforced concrete, the manufacture of welded fabric and prestressed concrete.
Standard Catalog
The standard consists of the following main sections:
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
3.1 Cold-rolled Ribbed Steel Bars cold rolled ribbed steel bars
3.2 Nominal Diameter nominal diameter
3.3 Specific Projected Rib Area specific projected rib area
3.4 Rib Spacing rib spacing
4 Grades
5 Dimensions, Profiles, Weights and Permissible Tolerances
5.1 Nominal Diameter Range
5.2 Profiles
5.3 Dimensions, Weights and Permissible Tolerances
5.4 Delivery Types, Lengths and Permissible Tolerances
5.5 Straightness
5.6 Weight
6 Raw Materials and Properties
6.1 Raw Materials
6.2 Delivery Condition
6.3 Mechanical Properties and Technological Properties
6.4 Surface Quality
7 Test Methods
7.1 Inspection Items
7.2 Mechanical Properties
7.3 Stress Relaxation Test
7.4 Dimension Measurement
7.5 Measurement of Weight Deviation
7.6 Numerical Rounding
8 Inspection Rules
8.1 Inspection and Acceptance
8.2 Lot-forming Rules
8.3 Sampling Quantity
8.4 Retest and Judgment
9 Packaging, Marking and Quality Certificates
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