GB/T 36516-2018 English PDF (GBT36516-2018)

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GB/T 36516-2018: Fe-Cr-Al wire and fiber for automotive purification filter
GB/T 36516-2018
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.99
H 58
Fe-Cr-Al wire and fiber for automotive purification
filter
ISSUED ON: JULY 13, 2018
IMPLEMENTED ON: APRIL 01, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 6 
4 Order content ... 7 
5 Size and weight ... 8 
6 Technical requirements ... 9 
7 Test method ... 11 
8 Inspection rules ... 13 
9 Packaging, marking and quality certificate ... 14 
Appendix A (Informative) Other physical properties and typical mechanical
properties of wire ... 16 
Fe-Cr-Al wire and fiber for automotive purification
filter
1 Scope
This standard specifies the designations, sizes and weights, technical
requirements, test methods, inspection rules, packaging, markings, quality
certificates of Fe-Cr-Al wire and fiber for automotive purification filter.
This standard applies to Fe-Cr-Al wire and fiber materials for metal fiber felts of
diesel engine exhaust particulate filter (DPF). It also applies to Fe-Cr-Al wire
and fiber materials for metal fiber felts or woven meshes in the chemical,
petroleum, gas industries (hereinafter referred to as wire and fiber).
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total
silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.8 Methods for chemical analysis of iron, steel and alloy - The
sodium fluoride separation-EDTA titration for the determination of aluminum
content
GB/T 223.11 Iron, steel and alloy - Determination of chromium content -
Visual titration or potentiometric titration method
GB/T 223.17 Methods for chemical analysis of iron, steel and alloy - The
diantipyrylmethane photometric method for the determination of titanium
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 223.30 Methods for chemical analysis of iron, steel and alloy - The
arsenazo III spectrophotometric method for the determination of zirconium
content after separation by p-bromomandelic acid
GB/T 223.33 Methods for chemical analysis of iron, steel and alloy - The
chlorophosphonazo mA photometric method for the determination of cerium
content after extraction separation
GB/T 223.37 Methods for chemical analysis of iron, steel and alloy - The
indophenol blue photometric methods for the determination of nitrogen
content after distillation separation
GB/T 223.40 Iron, steel and alloy - Determination of niobium content by the
sulphochlorophenol S spectrophotometric method
GB/T 223.49 Methods for chemical analysis of iron, steel and alloy -
Extraction separation-chlorophosphonazo mA spectrophotometric method
for the determination of the total rare earth 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 223.64 Iron, steel and alloy - Determination of manganese content -
Flame atomic absorption spectrometric method
GB/T 223.79 Iron and steel - Determination of multi-element contents - X-
ray fluorescence spectrometry (Routine method)
GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared
absorption method after combustion in an induction furnace
GB/T 223.86 Steel and iron - Determination of total carbon content - Infrared
absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at
room temperature
GB/T 6146 Test method for resistivity of precision resistance alloys
GB/T 6394 Metal - Methods for estimating the average grain size
GB/T 11170 Stainless steel - Determination of multi-element contents -
Spark discharge atomic emission spectrometric method (Routine method)
GB/T 11261 Steel and iron - Determination of oxygen content - The pulse
heating inert gas fusion-infra-red absorption method
GB/T 13303 Steels - Determination method of oxidation resistance
GB/T 20066 Steel and iron - Sampling and preparation of samples for the
Fiber
Filaments with a nominal wire diameter below 0.1 mm.
3.3
Bundle drawing
A processing method of wrapping multiple wires into a metal sleeve while
drawing through a die hole, then removing the sleeve layer to obtain a core
wire.
3.4
Monofilament drawing
Processing method of drawing a single wire through a die hole to a desired
wire diameter.
3.5
Monofilament axial
A state where a single metal wire is wound around a reel.
3.6
Multi-strand bundle
A state where plurality of metal fibers form a bundle wound around a reel.
3.7
Breaking strength force
Breaking force when fiber filaments are stretched.
3.8
Oxidative gain value
The increase in the unit oxidation weight of a metal at high temperatures.
4 Order content
A contract or order placed under this standard shall include the following:
a) This standard number;
analysis are performed according to the provisions of GB/T 11261 and GB/T
20124; the arbitration analysis is performed in accordance with the provisions
of GB/T 223.5, GB/T 223.8, GB/T 223.11, GB/T 223.17, GB/T 223.19, GB/T
223.30, GB/T 223.33, GB/T 223.37, GB/T 223.40, GB/T 223.49, GB/T 223.59,
GB/T 223.64, GB/T 223.85, GB/T 223.86, GB/T 11261, GB/T 20125.
7.2.2 Fiber
The chemical composition analysis and sampling of the fiber shall be conducted
in accordance with the provisions of GB/T 20066. The chemical composition
analysis of the fiber is carried out according to the specifications of YS/T 904.1
~ 904.5 series standards.
7.3 Mechanical properties
7.3.1 Wire
Cut a segment of wire from the end of the wire where it is more than 300 mm.
The test method is performed in accordance with GB/T 228.1.
7.3.2 Fiber
Cut a segment of fiber from the end of the fiber where it is more than 300 mm.
Use a monofilament strength tester which has a range of 100 cN to clamp it
individually. Perform testing at the clamping length of 20 mm and the tensile
rate of 10 mm/min. 30 pieces form a group. Take the average value, to obtain
the breaking strength force and elongation at break of the fiber.
7.4 Resistivity
The method of measuring the electrical resistivity of the wire is performed in
accordance with GB/T 6146.
7.5 Antioxidation test
The test method for the oxidation resistance of the fiber is carried out in
accordance with GB/T 13303.
7.6 Grain size
The grain size testing shall be carried out in accordance with GB/T 6394.
7.7 Surface quality
The surface quality of the fibers and wires are checked visually. If necessary,
the fiber can be inspected by a magnifying glass larger than 10 times.
6 Grain size ○ ● 2 pieces At fiber head 7.6
7 Surface quality ● ● Coil by coil - 7.7
Note: ● Necessary inspection item; ○ Inspection items required by the purchaser; - Non-inspection items.
a...