This standard specifies the ordering content, classification, code, dimensions, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of hot-rolled H section steel and T section steel cut by hot-rolled H section steel.
This standard is applicable to hot-rolled H section steel (hereinafter referred to as "H section steel") and T section steel cut by hot-rolled H section steel.
2 Normative References
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies. For undated references, the latest edition (including all amendments) applies.
GB/T 222 "Permissible Tolerances for Chemical Composition of Steel Products"
GB/T 228.1 "Metallic Materials-Tensile Testing-Part 1: Method of Test at Room Temperature" (GB/T 228.1-2010, ISO 6892-1:2009, MOD)
GB/T 229 Metallic Materials-Charpy Pendulum Impact Test Method" (GB/T 229-2007, ISO 148-1:2006, MOD)
GB/T 232 "Metallic Materials-Bend Test" (GB/T 232-1999, eqv ISO 7438:1985(E))
GB/T 700 "Carbon Structural Steels"
GB 712 "Hull Structural Steel"
GB/T 714 "Structural Steel for Bridge"
GB/T 1591 "High Strength Low Alloy Structural Steels"
GB/T 2101 "General Requirement of Acceptance Packaging, Marking and Certification for Section Steel"
GB/T 2975 "Steel and Steel Products--Location and Preparation of Test Pieces for Mechanical Testing" (GB/T 2975-2008, eqv ISO 377:1997)
GB/T 4171 "Atmospheric Corrosion Resisting Structural Steel"
GB/T 4336 "Standard Test Method for Spark Discharge Atomic Emission Spectrometric Analysis of Carbon and Low-alloy Steel (Routine Method)"
GB/T 20066 "Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition" (GB/T 20066-2006, ISO 14284:1998, IDT)
3 Ordering Content
According to this standard, the order contract shall contain the following technical content:
a) Product name and category;
b) Designation;
c) Number of this standard;
d) Specification;
e) Delivery length;
f) Weight and quantity;
g) Other specific requirements proposed by the demander, for instance: special specification requirement, special surface quality requirements, etc.
