GB / T 3624-94
Grades, status, size
Product grades, the state shall comply with the specifications in Table 1
Table 1
Grades
Manufacturing method
Supply status
Specifications
Thickness * Width * Length
TA0, TA1, TA2, TA3, TA5, TA6, TA7, TA9, TA10, TB2, TC1, TC2, TC3, TC4
Hot rolling
The hot state
(R)
Cold state
(Y)
Hot rolling
Note: The minimum thickness of commercially pure titanium plate supplier for 0.3 mm, the minimum thickness of various Oh hobby titanium alloy sheet supplied in Table 5
Dimension Tolerance
2.1 sheet thickness tolerances shall comply in accordance with Table 3 for allowable deviation normalization given in Table 2, the width and length.
Thickness tolerance width
Thickness
Note; According to the requirements of non-series is also available on his specifications, the thickness tolerance specifications executed by adjacent larger
Table 3
Thickness
Width
Width tolerance
Length
Length tolerance
Note; plate thickness greater than 15mm or may not need to agree when trimming delivery.
Roughness 2.2 plate should comply with Table 4.
Roughness MM / M is not greater than the width MM
Thickness mm
2.3 The plate edges should be cut flush cut, no cracks, curling, allowing a slight glitch.
Each angle 2.4 sheet should be cut at right angles, oblique cut should not exceed the allowable deviation of the sheet length and width.
3 Technical requirements
3.1 Chemical Composition
3.1.1 Chemical composition of titanium and titanium alloy sheet should be consistent with GB / T3620 provides that when the demand side reinspection. Chemical composition tolerances shall comply with the provisions of GB / T3620's.
3.1.2 Mechanical Properties
3.2.1 Transverse mechanical properties at room temperature sheet shall comply with Table 5.
Table 5
Grades
State
Sheet thickness
Mechanical properties at room temperature of not less than
Tensile strength
σb
N / m㎡
Provisions of residual elongation stress
σb
N / m㎡
Elongation
TA0
TA1
TA2
TA3
TA5
TA6
TA7
TA9
TA10
M
TB2
C
TC1
TC2
TC3
TC4
Note: "CS" means "quenching and aging" state
3.2.2 When the demand side and the time specified in the contract. Vertical plate can be measured mechanical properties at room temperature, and should meet the requirements of Table 5.
3.2.3 demand side requirements and specified in the contract, the high temperature mechanical properties of the plate should be in accordance with Table 6 - Test the temperature should be stated at the time of the contract, its temperature, high temperature mechanical properties reported experimental data.
Table 6
Alloy
Test temperature
High temperature mechanical properties
Tensile strength
σb, N / m㎡
Persistent strength
σN / m㎡
Not less than
TA6
TC3 TC4,
3.3 Process Performance
Bending properties sheet should comply with Table 7. Using 15 mm wide specimen, curved core diameter thickness three times.
Table 7
Grades
State
Sheet thickness
Bending angle a, of
Not less than
TA0
TA1
TA2
TA3
TA5
TA6
TA7
TA9
TA10
M
TB2
TC1
TC2
TC3
TC4
3.4 Surface Quality
3.4.1 plate surface should be smooth, showing metal color. Sheet allows sandblasted surface supply.
3.4.2 plate surface to allow the existence of a slight dark and local water stains; allow local, not to exceed half the thickness tolerance of scratches, indentations, pits and other defects, but should ensure that the minimum thickness.
3.4.3 does not allow the plate surface cracks, peeling, scale, crimping, metal and non-metallic inclusions and other macro-defect and had traces of caustic.
3.4.4 along the rolling direction of the plate allows the removal of local defects, but had to remove the sheet thickness is less than the minimum allowable thickness.
3.4.5 When there are special requirements for surface quality can be agreed between supplier.
3.5 Other Requirements
There should be layered sheet.