GB/T 8547-2019 English PDF (GBT8547-2019)

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GB/T 8547-2019: Titanium clad steel plate
GB/T 8547-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.50
H 64
Replacing GB/T 8547-2006
Titanium clad steel plate
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: MAY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Technical requirements ... 6 
5 Test methods ... 11 
6 Inspection rules ... 11 
7 Delivery weight ... 13 
8 Marks, packaging, transport, storage and quality certificate ... 13 
9 Contents of order sheet (or contract) ... 14 
Annex A (Normative) Ultrasonic testing method for titanium-steel clad plate . 16 
Titanium clad steel plate
1 Scope
This Standard specifies technical requirements, test methods, inspection rules,
delivery weight, marks, packaging, transport, storage as well as quality
certificate and contents of order sheet (or contract) for titanium clad steel plate.
This Standard is applicable to titanium-steel explosive clad plate, explosive-
rolled clad plate or rolled clad plate for corrosion resistant pressure vessels,
storage tanks and other uses (hereinafter referred to as clad plate).
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 223 (all parts), Methods for chemical analysis of iron, steel and alloy
GB/T 700, Carbon structural steels
GB/T 711, Hot-rolled quality carbon structural steel plates sheets and wide
strips
GB/T 712, Hull structural steel
GB/T 713, Steel plates for boilers
GB/T 3274, Hot-rolled plates and strips of carbon structural steels and high
strength low alloy structural steels
GB/T 3531, Low Alloy Steel Plate for Low Temperature Pressure Vessels
GB/T 3620.1, Designation and Composition of Titanium and Titanium Alloys
GB/T 3621, Titanium and titanium alloy sheet and plate
GB/T 4698 (all parts), Methods for chemical analysis of titanium sponge,
titanium and titanium alloys
GB/T 6396, Clad steel plates - Mechanical and technological test
4.1.2.1 Composite material of clad plate shall be in accordance with GB/T 3621.
Substrate shall comply with one of standards listed in Table 2. Composite
materials and substrates specified in the table can be freely combined.
Table 2 -- Composite materials and substrates
Composite materials Substrates
TA1G, TA2G, TA3G, TA9, TA10 in GB/T 3621 GB/T 700, GB/T 711, GB/T 712, GB/T 713, GB/T 3274, GB/T 3531, NB/T 47008, NB/T 47009
NOTE: When composite material is TA1G, TA2G or TA3G, class 2 clad plate allows to use low-
strength composite material to replace high-strength composite material, for example, using TA1G to
replace TA2G.
4.1.2.2 Thickness of composite material is usually 0.3mm~15.0mm. When
thickness of composite material is greater than 10.0mm, agreed by supplier and
purchaser, composite material can be composed of multiple layers.
4.1.2.3 When width of clad plate is greater than 1100mm or length is greater
than 3000mm, composite material allows tailored welding and width or length
of tailored composite material is not less than 300mm. Tailor-welded welds shall
be tested for penetration. Testing results shall comply with provisions of Level
II in Table 6 of NB/T 47013.5-2015. When purchaser requires and it is indicated
in contract, tailor-welded welds shall be tested for rays. Testing results shall
comply with provisions of Level II in Table 22 of NB/T 47013.2-2015.
4.1.3 Delivery state
4.1.3.1 Clad plate can be delivered according to explosion state (B), explosion-
rolled state (BR) or rolled state (R).
4.1.3.2 When explosive clad plate is delivered in stress-relief state (m),
recommended heat treatment system is: 540°C ~ 650°C, insulation time is not
less than 1h, heating and cooling rates are 50°C/h to 200°C/h.
4.1.4 Marking example
Product mark follows a sequence: composite material designation/substrate
designation, code, delivery state, specification, standard reference. Marking
example is as follow:
Example 1:
Class 1 explosive clad plate of which composite material thickness is 6mm
TA2G, substrate thickness is 30mm, width of Q235B steel is 1000mm, length is
3000mm, in stress-relief state, is marked as:
TA2G/Q235B B1 m 6/30×1000×3000 GB/T 8547-2019
4.8.3 It is allowed to clear partial defect on composite material surface along
with processing direction. But thickness of composite material after clearance
must not be less than minimum allowable thickness.
5 Test methods
5.1 Arbitration analysis for chemical composition of composite material is in
accordance with GB/T 4698. Arbitration analysis of chemical composition of
substrate is carried out in accordance with GB/T 223.
5.2 Allowable deviation of composite material thickness is in accordance with
GB/T 6396. Thickness shall be measured at a distance of not less than 100mm
from apex angle and not less than 20mm from edge. Allowable deviation of
other sizes is measured by measuring tool of corresponding precision.
5.3 Tensile performance, shear strength and bending performance of clad plate
are in accordance with GB/T 6396.
5.4 Bonding area of clad plate is in accordance with Annex A. When it exceeds
Annex A, it shall be negotiated by both parties.
5.5 Visually inspect surface quality of clad plate.
5.6 Penetration testing is in accordance with NB/T 47013.5-2015.
5.7 Radiation testing is in accordance with NB/T 47013.2-2015.
6 Inspection rules
6.1 Check and acceptance
6.1.1 Products shall be inspected by supplier to ensure product quality meets
requirements of this Standard.
6.1.2 Purchaser shall re-inspect received products according to provisions of
this Standard. When re-inspection results do not conform to provisions of this
Standard and order sheet (or contract), it shall be proposed to supplier in a
written form and shall be solved by both parties via negotiation. Objections to
dimensions and surface quality shall be proposed within one month since date
of receipt of product. Objections to other performances shall be proposed within
three months since date of receipt of product. If arbitration is required, it shall
be determined by supplier and purchaser via negotiation.
6.2 Batching
c) product lot number;
d) detonation point of clad plate (when it is required by purchaser and
indicated in contract).
8.2 Packaging, transport and storage
8.2.1 Clad plate uses unpacked packaging. When two faces of composite
material face each other, use moisture-proof paper to line the middle; use metal
wire to tie external part. Special requirements for packaging shall be negotiated
by supplier and purchaser.
8.2.2 Prevent collision, moisture and active chemical corrosion during
transportation and storage of product.
8.3 Quality certificate
Each batch of products shall be attached with quality certificate that conforms
to this batch of products, indicating:
a) supplier name or code;
b) product name or code;
c) product designation (composite material and substrate), specification and
state;
d) product batch number and substrate batch number, composite material
furnace number;
e) batch weight and number of pieces;
f) analysis insp...