GB/T 5213-2019 PDF in English
GB/T 5213-2019 (GB/T5213-2019, GBT 5213-2019, GBT5213-2019)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 5213-2019 | English | 135 |
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Cold rolled low carbon steel sheet and strip
| Valid |
| GB/T 5213-2008 | English | 85 |
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[Replaced by GB/T 5213-2019] Cold rolled low carbon steel sheet and strip
| Obsolete |
| GB/T 5213-2001 | English | 439 |
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4 days
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Cold rolled sheets and strips for deep drawing
| Obsolete |
| GB/T 5213-1985 | English | 239 |
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2 days
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Cold rolled sheets and strips for deep drawing
| Obsolete |
Standards related to (historical): GB/T 5213-2019
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GB/T 5213-2019: PDF in English (GBT 5213-2019) GB/T 5213-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.50
H 46
Replacing GB/T 5213-2008
Cold rolled low carbon steel sheet and strip
ISSUED ON: MARCH 25, 2019
IMPLEMENTED ON: FEBRUARY 1, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Classification and designation ... 5
4 Ordering content ... 7
5 Dimensions, shape and weight ... 7
6 Technical requirements ... 7
7 Test methods ... 10
8 Inspection rules ... 11
9 Packaging, marking and quality certification ... 11
Annex A (Informative) Chemical components of steel ... 12
Annex B (Informative) Cross-reference of similar domestic and foreign
designations ... 13
Cold rolled low carbon steel sheet and strip
1 Scope
This Standard specifies the terms and definitions, classification and designation,
ordering content, dimensions, shape, weight, technical requirements, test methods,
inspection rules, packaging, marking and quality certification of cold rolled low carbon
steel plates (sheets) and strips.
This Standard applies to cold rolled low carbon steel plates (sheets) and strips with a
thickness not greater than 3.5 mm which are used for cold forming (hereinafter referred
to as “steel plates (sheets) and strips”).
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition dated applies to this document. For
undated references, the latest edition of the referenced documents (including all
amendments) applies to this document.
GB/T 223.9, Iron steel and alloy – Determination of aluminium content – Chrome
azurol S photometric method
GB/T 223.16, Methods for chemical analysis of iron, steel and alloy – The
chromotropic acid photometric method for the determination of titanium content
GB/T 223.40, Methods for chemical analysis of iron, steel and alloy – The anion-
exchange separation-sulphochlorophenol S photometric method for the
determination of niobium content
GB/T 223.59, Iron, steel and alloy – Determination of phosphorus content –
Bismuth phosphomolybdate blue spectrophotometric method and antimony
phosphomolybdate blue spectrophotometric method
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 228.1-2010, Metallic materials – Tensile testing – Part 1: Method of test at
room temperature
GB/T 247, General rule of package, mark and certification for steel plates (sheets)
and strips
GB/T 708, Dimensions, shape, weight and tolerances for cold-rolled steel plates
(sheets) and strips
GB/T 2523, Measuring method of surface roughness and peak count for cold-
rolled metal sheet (strip)
GB/T 2975, Steel and steel products – Location and preparation of samples and
test pieces for mechanical testing
GB/T 4336, Carbon and low-alloy steel – Determination of multi-element contents
– Spark discharge atomic emission spectrometric method (routine method)
GB/T 5027, Metallic materials – Sheet and strip – Determination of plastic strain
ratio
GB/T 5028, Metallic materials – Sheet and strip – Determination of tensile strain
hardening exponent
GB/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
GB/T 17505, Steel and steel products – General technical delivery requirements
GB/T 20066, Steel and iron – Sampling and preparation of samples for the
determination of chemical composition
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 20125, Low-alloy steel – Determination of multi-element contents –
Inductively coupled plasma atomic emission spectrometric method
GB/T 20126, Unalloyed steel – Determination of low carbon content – Part 2:
Infrared absorption method after combustion in an induction furnace (with
preheating)
3 Classification and designation
3.1 Classification
3.1.1 For the classification of steel plates (sheets) and strips by use see Table 1.
4 Ordering content
4.1 Contracts or orders based on this Standard shall include the following contents:
a) product name (steel plates (sheets) or strips);
b) standard number;
c) designation;
d) specifications and dimensions and roughness accuracy;
e) surface quality grade;
f) surface structure;
g) rim condition;
h) packaging method;
i) weight;
j) use;
k) other special requirements (such as surface orientation, etc.).
4.2 If the information is not indicated in contracts, such as dimensions and roughness
accuracy, surface quality grade, surface structure type, rim condition and packaging,
the supplier shall supply goods in accordance with common dimensions and
roughness accuracy, relatively high-grade surface, pitted surface structure and
trimming state, and packaging method of the supplier.
5 Dimensions, shape and weight
The dimensions, shape, weight and tolerances of steel plates (sheets) and strips shall
be as specified in GB/T 708.
6 Technical requirements
6.1 Chemical components
For the reference values of steel chemical components (by smelting analysis) see
Annex A. If the purchaser has any requirement for chemical components, it shall be as
agreed on when an order is placed. For the cross-reference table of similar domestic
7 Dimensions and shape - - Appropriate measuring instruments
7.3 r90 is calculated at 15% of strain; when average elongation is less than 15%, strain
is calculated at the end of average elongation. n90 is calculated from the strain range
of 10% ~ 20%; when average elongation is less than 20%, the strain range is the strain
from 10% to the end of average elongation.
8 Inspection rules
8.1 Inspection and acceptance of steel plates (sheets) and strips shall be carried out
by the inspection department of the supplier.
8.2 Steel plates (sheets) and strips shall be accepted by batch. Each batch for
inspection shall consist of steel plates (sheets) and strips of same designation, same
specification and same processing condition. Weight of each batch shall not be greater
than 30 t; for steel strips with a coil weight greater than 30 t, each coil is a batch for
inspection.
8.3 Sample numbers and sample methods of steel plates (sheets) and strip shall be
as specified in Table 7.
8.4 Reinspection and criteria for steel plates (sheets) and strips shall be as specified
in GB/T 17505.
8.5 Test results of chemical components and mechanical properties shall be rounded
off using the rounded-off value comparison method; the rules for rounding off shall be
as specified in GB/T 8170.
9 Packaging, marking and quality certification
Packaging, marking and quality certification of steel plates (sheets) and strips shall be
as specified in GB/T 247. If the purchaser has special requirements for packaging, they
shall be as agreed on during ordering.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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