1 Scope
This standard specifies order content, dimension and shape, weight and allowable deviation, technical requirements, test methods, test rules and packing, marking and quality certificate of hot-rolled low-carbon steel wire rods.
This standard is applicable to low-carbon steel hot-rolled wire rods for deep processing and other general purpose.
This standard is not applicable to the following products:
—— hot-rolled carbon bar steel for standard part;
—— steel wire rods for welding;
——cold heading steel;
——free-cutting structural steels;
—— bar steel for anchor chain.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these labels are applied or not. For undated references, the latest edition of the normative document referred to applies.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.3 Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method (GB/T 223.5-1997, NEQ ISO 4829-1:1986, ISO 4829-2: 1988)
GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - the sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
GB/T 223.19 Methods for chemical analysis of iron steel and alloy - the neocuproine-chloroform extraction photometric method for the determination of copper content
GB/T 223.23 Methods for chemical analysis of iron, steel and alloy - the dimethylglyoxime spectrophotometric method for the determination of nickel content (GB/T 223.23-1994, MOD ISO 4939: 1984)
GB/T 223.59 Methods for chemical analysis of iron, steel and alloy - The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content
GB/T 223.60 Methods for chemical analysis of iron, steel and alloy - the perchloric acid dehydration gravimetric method for the determination of silicon content (GB/T 223.60-1997, MOD ISO 439: 1994)
GB/T 223.61 Methods for chemical analysis of iron, steel and alloy - The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
GB/T 223.62 Methods for chemical analysis of iron, steel and alloy - The butyl acetate extraction photometric method for the determination of phosphorus content
GB/T 223.63 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content (GB/T 223.63-1988, MOD ISO 629: 1982)
GB/T 223.64 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrometric method for the determination of manganese content (GB/T 223.64 1988, MOD ISO 10700:1984)
GB/T 223.68 Methods for chemical analysis of iron, steel and alloy - The potassium iodate titration method after combustion in the pipe furnace for the determination of sulfur content (GB/T 223.68-1997, MOD ISO 671: 1982)
GB/T 223.69 Methods for chemical analysis of iron, steel and alloy - The gas- volumetric method after combustion in the pipe furnace for the determination of carbon content
GB/T 223.71 Methods for chemical analysis of iron, steel and alloy - The gravimetric method after combustion in the pipe furnace for the determination of carbon content (GB/T 223.71-1997, MOD ISO 437: 1982)
GB/T 223.72 Methods for chemical analysis of iron, steel and alloy - The alumina chromatographic separation-barium sulfate gravimetric method for the determination of sulphur content
GB/T 228 Metallic materials--Tensile testing at ambient temperature (GB/T 228-2002, eqv ISO 6892: 1998 (E))
GB/T 232 Metallic materials--Bend test (GB/T 232-1999, eqv ISO 7438: 1985 (E))
GB/T 700 Carbon Structural Steels
GB/T 2101 General requirements 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 2975-1998, eqv ISO 377: 1997)
GB/T 4336 Standard test method for spark discharge atomic emission spectrometric analysis of carbon and low-Alloy steel (routine method)
GB/T 14981 Dimensions, shape, mass and tolerances for hot-rolled wire rods
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)
GB/T 20123 Steel and iron - Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method) (GB/T 20123-2008, ISO 15350: 2000, IDT)
YB/T 081 Rule for rounding off of numerical values and judgment of testing values for technical standards of metallurgy
3 Order Content
The order contracts this standard applies shall include the following information:
A) Code number of this standard;
B) Product name;
C) Steel designation;
D) Specification and weight of wire rods;
E) Other special requirements.
