Some standard content:
National Standard of the People's Republic of China
Titanium-stainless steel clad plate
Titanium clad stainless steel plateUDC 669. 146. 018
.821-41 : 669
GB8546
This standard applies to explosion titanium-stainless steel clad plates with a thickness greater than 8mm. This material is used to manufacture towers, kettles, tanks, tanks and transition joints that are subjected to certain pressures and temperatures in corrosive environments. Varieties
Classification and code
The classification and code of clad plates shall comply with the provisions of Table 1. Table!
Used for transition joints, flanges and other special purposes with high bonding strength, where no unbonded areas are allowed to exist, and for clad plates with certain special uses where titanium materials participate in strength design, or for components where clad plates are strictly processed. For example, clad plates such as tube sheets with titanium materials as corrosion-resistant design but not participating in strength design. Such as simplified Chinese characters, etc. Note: Explosion titanium-stainless steel is represented by the Chinese phonetic prefix \B\ of the word "爆". 1.2 Applicable materials
The base material and composite material of the composite plate shall comply with the provisions of Table 2. The composite materials and base materials listed in the table can be freely combined. Materials other than those in Table 2 can be agreed upon by both parties.
TAI,TA2 of G133621-83 "Titanium and Titanium Alloy Plates"
1.3 Delivery status
Austenitic, austenitic ferrite and ferritic stainless steel specified in GB3281-.82≤ Technical conditions for stainless and molten heat resistant thick steel plates
GB1220-84% stainless steel bars
GB3280-8 sheets stainless steel cold-rolled steel plates
GB4237-84\ stainless steel hot-rolled steel plates
The composite plate is delivered in the exploded state (B). If heat treatment is required, it shall be agreed upon by both parties. 1.4 Specifications, dimensions and allowable deviations
1.4.1 The thickness, width (or diameter), length and allowable deviations of the composite board shall comply with the provisions of Table 3 and Table 1. Composite boards with other specifications or special requirements for dimensional allowable deviations may also be provided upon consultation between the supplier and the buyer. Approved by China National Nonferrous Metals Industry Corporation on December 21, 1987 422
Implementation on December 1, 1988
Composite plate thickness
19~~28
Composite plate thickness
GB 8546---87
Composite plate thickness allowable deviation
Composite plate width (or diameter) and allowable deviation ≥1100～1600
Composite plate length and allowable deviation
≥1100～1600
≥1600~2800
Composite plates with a width greater than 1100mm or a length greater than 2200mm are allowed to be welded with composite materials or base materials. 1.4.2
1 600~2 200
>2 800
The thickness of composite plate is in the range of 1.5~～12mm. The composite ratio is determined by the buyer. The allowable difference in the thickness of the composite material of the explosive composite plate is not more than 8% of the nominal thickness of the composite material. 1. 4.4
The thickness interval of the composite plate substrate shall be implemented in accordance with the provisions of GB709-:65 "Hot-rolled thick steel plate varieties". The unevenness of the composite plate shall comply with the provisions of Table 5. If the buyer has special requirements, it can be determined by negotiation between the supply and demand parties. Table 5
Classification of composite board
Roughness of composite board, mm/m
Thickness ≤ 30mm2
Class 0, Class 1
Thickness > 30mm
1.4.6 The four corners of the composite board shall be cut into right angles, and the bevel shall not be greater than the allowable deviation of its length or width. Composite boards with a thickness greater than 18mm and a length less than 2800mm may be trimmed by other methods. With the consent of the purchaser, they may be delivered without trimming. 1.5 Marking example
The Class 1 explosive composite plate with a composite material thickness of 5mm, a base material thickness of 1Cr18Ni9Ti of 15mm, a width of 1000mm and a length of 2000mm is marked as:
TA2/1Cr18Ni9TiB15/15X1000×2000GB8546--872 Technical requirements
2.1 Chemical composition
2.1.1 The chemical composition of composite materials TAi and TA2 shall comply with the provisions of GB3620--83 "Titanium and titanium alloy grades and chemical composition". 2.1.2 The chemical composition of the base material shall comply with the provisions of the relevant standards. 2.2 Mechanical properties and process properties
GB 8546--87
The mechanical properties and process properties of the composite plate shall comply with the provisions of Table 6. Table 6
Tensile test
Tensile strength b
N/mm'(kgf/mm)
Elongation.
Greater than the
lower
specified value in the base material or
composite material standard
Shear test
Shear strength T
N/mm*(kgf/mm\)
Class 0 ≥197
(≥20)
Class 1 ≥138
(≥14)
Class 2 ≥138
(≥14)
Note: ①The theoretical lower limit standard value B of the tensile strength of the composite plate shall be calculated according to 2.2.1. Separation test
Separation strength (t
N/mm(kgf/mm)
≥274
(≥28)
②Cracks are not allowed to occur on the outside of the bending part, and delamination is not allowed at the composite interface. The theoretical lower limit standard value αB of the tensile strength of the composite plate is calculated according to the following formula: 2.2.1
t:a1+t2o2
Where: a1 base material tensile strength lower limit standard value, N/mm (kgf/mm); composite material tensile strength lower limit standard value, N/mm (kgf/mm2): t
base material thickness, mm,
composite material Thickness, mm.
2.3 Joint area
The joint state and joint area of the composite plate shall comply with the provisions of Table 7. Table 7
Joint area
2.4 Welding quality
The joint area is greater than 98%, the length of a single non-joint area is not greater than 75mm, and its area is not greater than 45cm. The welding seam of the base material and the composite material must meet the following conditions: a
Bending test
Inner bend 180°,
Outer bend according to the standard of the composite
Bending core diameter
Inner bend according to the standard of the base material.
Not enough 2 Times
When bending outward, it is
3 times the thickness of the composite plate
The bonding area is greater than 95%, and the area of a single non-bonded area is not more than 60cm2
The welds of the composite material and the base material shall be subjected to non-destructive testing, and the judgment standards and weld requirements shall be negotiated by both parties; the minimum width of the panel shall not be less than 300mm;
The distance between the base material and the composite material butt weld shall not be less than 100mm. c.
2.5 Surface quality
2.5.1 The composite plate is delivered with the original surface. If the purchaser has special requirements for the surface, the supply and demand parties shall negotiate. 2.5.2 Composite plate Cracks and other macro defects are not allowed on the surface. Scratches, pits or doctor marks that do not exceed half of the thickness tolerance of the composite material are allowed.
2.5.3 Smaller defects on the composite surface that do not penetrate the base material are allowed to be repaired by welding. The repaired surface should be flush with the composite surface. 2.6 Other requirements
If the purchaser requires other special tests, the supply and demand parties shall negotiate. 3 Test methods
3.1 Arbitration analysis method for chemical composition
3.1.1 The arbitration analysis method for the chemical composition of composite materials shall be in accordance with GB4698.1~4698.16-84 "Chemical Analysis Methods for Titanium and Titanium Alloys" GB424
GB 8546 - 87
3.1.2 The arbitration analysis method of the chemical composition of the substrate shall be carried out in accordance with GB223.1~~223.50 "Chemical Analysis Methods for Steel and Alloys". 3.2 Mechanical Properties and Process Performance Test Methods The tensile test, shear test and bending test of the composite plate shall be carried out in accordance with GB6396--86 "Composite Steel Plate Performance Test Method". The separation test method shall be carried out in accordance with Appendix A.
3.3 Bonding Area Inspection Method
The bonding state and bonding area of the composite plate shall be inspected by ultrasonic flaw detection. The inspection method shall be carried out in accordance with Appendix B of GB8547-87 "Titanium-Steel Composite Plate".
3.4 Dimensional Inspection Method
3.4.1 The thickness of the composite board is measured at a distance of not less than 100mm from the top corner and not less than 20mm from the edge. The thickness of the composite board can be measured with a dry ruler, a caliper, or an ultrasonic thickness gauge. When measuring with an ultrasonic thickness gauge, take the average value of any 10 points for each plate.
3.4.3 The composite material thickness measurement method of the composite board shall be carried out in accordance with the provisions of GB6396-86. 3.5 Surface quality inspection method
The surface quality of the composite board shall be inspected with the naked eye. Inspection rules
4.1 Inspection and acceptance
4.1.1 The composite board shall be inspected by the supplier's technical inspection department and ensure that the product quality meets the requirements of this standard. 4.1.2 The buyer may re-inspect the received products. If the re-inspection results do not conform to this standard, it shall be reported to the supplier within three months from the month of receipt of the product, and the supply and demand parties shall negotiate to resolve the problem. 4.2 Batches
Composite panels shall be submitted for inspection in batches, and each batch shall consist of products of the same brand (composite material/base material), category, composite material melting furnace number, specification and processing technology.
4.3 Inspection Items 11
The inspection items for each batch of products shall comply with the provisions of Table 8. Table 8
Inspection Items
Tensile Test
Shear Test
Separation Test
Internal Bend Test
External Bend Test
Ultrasonic Flaw Detection
Dimensions
Surface Quality
: Symbols and Periods:
( ) indicates mandatory inspection items;
indicates inspection items determined through negotiation:
indicates inspection items that are not necessary.
4.4 Sampling location and sampling quantity
Types of composite board
4.4.1 The chemical composition of the composite material shall be reported according to the chemical composition of the original ingot, and the chemical composition of the base material shall be reported according to the original certificate. 32
GB8546—87
4.4.2 Mechanical properties and process performance inspection Take a sample from each composite board in each batch of products on its end residue according to the test items. It is allowed to use the test blocks of the same production cycle and the same process as the test samples. 4.4.3 The combined area of the composite board shall be inspected sheet by sheet, and the inspection range shall comply with the provisions of Table 9. Table 9
Class 0, Class 1
Composite board
Full flaw detection
Class 2 composite board
Continuous flaw detection within the 50mm width of the perimeter. The rest of the flaw detection along the 200mm distance
4.4.4 The overall dimensions and surface quality of the composite board shall be inspected sheet by sheet. The measurement of the thickness of the composite material allows one sheet to be taken from each batch for 4.5 Repeated test
In the mechanical properties and process properties inspection, if one sample fails, double samples shall be taken from the tested sheet (if the original tested sheet is not large enough, another sample can be taken from the same batch of products) or the test sheet to re-test the unqualified item. If one sample still fails after the re-test, the batch of products shall be scrapped, or the unqualified items shall be re-tested sheet by sheet. The qualified ones shall be re-assembled and delivered. 5 Delivery weight
When there is no special indication in the contract, the composite plate shall be delivered by theoretical weight. The theoretical weight of the composite plate is calculated according to the thickness of the composite material and the base material, and the length and width of the composite plate. The theoretical weight of 1mm thick titanium plate and 1Cr18Ni9Ti stainless steel plate is 4.51kg/m2 and 7.90kg/m2 respectively. Different grades of stainless steel should be calculated according to different specific gravities. 6 Marking, packaging, transportation and storage
6.1 Labeling
In addition to the inspection mark, the bundled or bulk products shall be attached with labels or signs, which shall indicate: the supplier's name or code;
product brand, specification and status;
product batch number.
6.2 Packaging, transportation and storage
The composite plate shall be packed in single pieces. The composite surfaces are opposite to each other, with moisture-proof paper in the middle and tied tightly with metal wire on the outside. 6.2.1
6.2.2 If the purchaser has special requirements for product packaging, the supply and demand parties can negotiate and determine. 6.2.3 Products should be protected from collision, moisture and corrosion by active chemicals during transportation and storage. 6.3 Quality Certificate
Each batch of products should be accompanied by a quality certificate that conforms to this batch, which should indicate: supplier name or code;
product name or code:
product brand, specification and status;
batch number, composite furnace number;
batch weight and number of pieces;
various analysis and test results and the stamp of the inspection department; this standard number;
packaging date.
A.1 Test specimen
As specified in Figure AI.
A.2 Fixture
GB8546
Appendix A
Separation strength test method
(Supplement)
Separation specimen
-composite plate thickness; h-substrate thickness; -composite plate thickness: L total
composite layer thickness plus 3mmwww.bzxz.net
Refer to Figure A2. The Vickers hardness HV of the edge of the fixture supporting the separation specimen shall not be less than 500. A.3
Installation of the specimen
The specimen shall be mounted on the fixture as shown in Figure A2. The gap after mounting shall be kept within the range of 0.1 to 0.15 mm. He Bing
17777777777777777777777777
019.2 -.2
Figure A2 Schematic diagram of fire tool and sample installation for separation strength test Operation
Use material tensile strength testing machine, load slowly and steadily, so that the composite material parallel to the composite interface is separated from the substrate. A.5
Calculation of separation strength
The separation strength is calculated according to the following formula:
GB8546—87
(dd,)
Where: . Composite plate separation strength, N/mm (kgf/mm); P -- load, N (kgf);
d. Outer diameter of composite material, mm;
Inner diameter of composite material, mm.
Additional Notes:
This standard was drafted by Baoji Rare Metal Processing Research Institute and Baoji Nonferrous Metal Processing Plant. The main drafters of this standard are Zhu Chan'e, Meng Qinglin, Peng Wen'an, Cao Qidong, Ma Dongkang and Yang Zhaosu. 1285 Repeated test
In the mechanical properties and process performance tests, if one sample fails, double the sample is taken from the tested plate (if the original tested plate is not large enough, another sample can be taken from the same batch of products) or the test plate to retest the unqualified item. If one sample still fails after the retest, the batch of products will be scrapped, or the unqualified items will be retested one by one. The qualified ones will be re-assembled and delivered. 5 Delivery weight
When there is no special indication in the contract, the composite plate is delivered according to the theoretical weight. The theoretical weight of the composite plate is calculated according to the thickness of the composite material and the base material, and the length and width of the composite plate. The theoretical weights of 1mm thick titanium plate and 1Cr18Ni9Ti stainless steel plate are 4.51kg/m2 and 7.90kg/m2 respectively. Different grades of stainless steel should be calculated according to different specific gravities. 6 Marking, packaging, transportation and storage
6.1 Labeling
In addition to the inspection mark, the bundled or bulk products shall be attached with labels or signs, which shall indicate: the supplier's name or code;
product brand, specification and status;
product batch number.
6.2 Packaging, transportation and storage
Composite boards are packed in single pieces. The composite surfaces are opposite to each other, with moisture-proof paper in the middle and tied tightly with metal wire on the outside. 6.2.1
6.2.2 If the purchaser has special requirements for product packaging, the supply and demand parties can negotiate and determine. 6.2.3 Products should be protected from collision, moisture and corrosion by active chemicals during transportation and storage. 6.3 Quality Certificate
Each batch of products shall be accompanied by a quality certificate that is consistent with the batch, which shall indicate: supplier name or code;
product name or code:
product brand, specification and status;
batch number, composite material furnace number;
batch weight and number of pieces;
results of various analysis and inspection and the stamp of the inspection department; this standard number;
packaging date.
A.1 Test specimen
As specified in Figure AI.
A.2 Fixture
GB8546
Appendix A
Separation strength test method
(Supplement)
Separation specimen
-composite plate thickness; h-substrate thickness; -composite plate thickness: L total
composite layer thickness plus 3mm
Refer to Figure A2. The Vickers hardness HV of the edge of the fixture supporting the separation specimen shall not be less than 500. A.3
Installation of the specimen
The specimen shall be placed on the fixture as shown in Figure A2. The gap after installation shall be maintained in the range of 0.1 to 0.15 mm. He Bing
17777777777777777777777777
019.2 -.2
Figure A2 Schematic diagram of the installation of the fire tool and specimen for the separation strength test Operation
Use a material tensile strength testing machine, and the loading should be slow and steady so that the composite parallel to the composite interface is separated from the substrate. A.5
Calculation of separation strength
The separation strength is calculated according to the following formula:
GB8546—87
(dd,)
Where:. Separation strength of composite plate, N/mm (kgf/mm); P -- load, N (kgf);
d. Outer diameter of composite material, mm;
Inner diameter of composite material, mm.
Additional remarks:
This standard was drafted by Baoji Rare Metal Processing Research Institute and Baoji Nonferrous Metal Processing Plant. The main drafters of this standard are Zhu Chan'e, Meng Qinglin, Peng Wen'an, Cao Qidong, Ma Dongkang and Yang Zhaosu. 1285 Repeated test
In the mechanical properties and process performance tests, if one sample fails, double the sample is taken from the tested plate (if the original tested plate is not large enough, another sample can be taken from the same batch of products) or the test plate to retest the unqualified item. If one sample still fails after the retest, the batch of products will be scrapped, or the unqualified items will be retested one by one. The qualified ones will be re-assembled and delivered. 5 Delivery weight
When there is no special indication in the contract, the composite plate is delivered according to the theoretical weight. The theoretical weight of the composite plate is calculated according to the thickness of the composite material and the base material, and the length and width of the composite plate. The theoretical weights of 1mm thick titanium plate and 1Cr18Ni9Ti stainless steel plate are 4.51kg/m2 and 7.90kg/m2 respectively. Different grades of stainless steel should be calculated according to different specific gravities. 6 Marking, packaging, transportation and storage
6.1 Labeling
In addition to the inspection mark, the bundled or bulk products shall be attached with labels or signs, which shall indicate: the supplier's name or code;
product brand, specification and status;
product batch number.
6.2 Packaging, transportation and storage
Composite boards are packed in single pieces. The composite surfaces are opposite to each other, with moisture-proof paper in the middle and tied tightly with metal wire on the outside. 6.2.1
6.2.2 If the purchaser has special requirements for product packaging, the supply and demand parties can negotiate and determine. 6.2.3 Products should be protected from collision, moisture and corrosion by active chemicals during transportation and storage. 6.3 Quality Certificate
Each batch of products shall be accompanied by a quality certificate that is consistent with the batch, which shall indicate: supplier name or code;
product name or code:
product brand, specification and status;
batch number, composite material furnace number;
batch weight and number of pieces;
results of various analysis and inspection and the stamp of the inspection department; this standard number;
packaging date.
A.1 Test specimen
As specified in Figure AI.
A.2 Fixture
GB8546
Appendix A
Separation strength test method
(Supplement)
Separation specimen
-composite plate thickness; h-substrate thickness; -composite plate thickness: L total
composite layer thickness plus 3mm
Refer to Figure A2. The Vickers hardness HV of the edge of the fixture supporting the separation specimen shall not be less than 500. A.3
Installation of the specimen
The specimen shall be placed on the fixture as shown in Figure A2. The gap after installation shall be maintained in the range of 0.1 to 0.15 mm. He Bing
17777777777777777777777777
019.2 -.2
Figure A2 Schematic diagram of the installation of the fire tool and specimen for the separation strength test Operation
Use a material tensile strength testing machine, and the loading should be slow and steady so that the composite parallel to the composite interface is separated from the substrate. A.5
Calculation of separation strength
The separation strength is calculated according to the following formula:
GB8546—87
(dd,)
Where:. Separation strength of composite plate, N/mm (kgf/mm); P -- load, N (kgf);
d. Outer diameter of composite material, mm;
Inner diameter of composite material, mm.
Additional remarks:
This standard was drafted by Baoji Rare Metal Processing Research Institute and Baoji Nonferrous Metal Processing Plant. The main drafters of this standard are Zhu Chan'e, Meng Qinglin, Peng Wen'an, Cao Qidong, Ma Dongkang and Yang Zhaosu. 128
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.