Magnesium Az31b Board For Needle Board , High Strength Magnesium
Metal Sheet Plates
Magensium Board for Needle Board
Mg alloy is the lightest of all structural metals ,which enjoys the
merit of high rigidity, high strength, high conductivity, high
damping capacity(is 30 times than Aluminum board),better capability
of shock absorption, Withstands high operating temperatures ,good
environmental corrosion resistance ,good finishing characteristics,
easy to be grinded, full recyclability.
AZ31B is a base wrought magnesium alloy with good room-temperature
strength and ductility combined with corrosion resistance and
weldability. Increased strength is obtained by strain hardening
with a subsequent partial anneal (H24 and H26 tempers). AZ31B is
non-magnetic and has high electrical and thermal conductivity
filling the requirements for RFI and EMI shielding in the
electronics and computer industries.
Superplastic forming of AZ31B sheet at elevated temperatures allows
production of a wide variety of intricate parts for automotive
uses. Monocoque construction utilizing formed sheet can be adapted
to many commercial applications.
SPECIFICATIONS
ASTM B90/B90M-07
CHEMICAL COMPOSITION
Al: 2.5-3.5%
Zn: 0.7-1.3%
Mn: 0.20 –1.0%
Mg: Balance
SPECIFICATIONS
ASTM B90/B90M-07
Thickness:13mm, 13.8mm,15mm,15.8mm, 13.2mm, 15.2mm,
CHEMICAL COMPOSITION
Al: 2.5-3.5%
Zn: 0.7-1.3%
Mn: 0.20 –1.0%
Mg: Balance
PHYSICAL PROPERTIES
Density: 1.78
Coefficient of thermal expansion: 26.8 x 10-6K-1
Specific heat: 1040 Jkg-1k-1
Thermal conductivity: 76.9Wm-1k-1
Electrical resistivity: 92nΩm
Modulus of elasticity: 45 x 109Pa
Poissons ratio: 0.35
Melting range: 566 - 632°C
HEAT TREATMENT
No thermal treatment is available for increasing the strength of
this alloy after fabrication.
MECHANICAL PROPERTIES
| Alloy and Temper | Thickness (mm) | Yield Strength 0.2% offset (MPa) | Tensile strength (MPa) | Elongation In 5.65 √A (%) |
| AZ31B-O | 0.5 – 1.5 | 125 | 221 | 10 |
| 1.5 – 6.3 | 105 | 221 | 9 |
| 6.3 - 75 | 105 | 221 | 8 |
| AZ31B-H24 | 0.5 – 6.3 | 200 | 269 | 5 |
| 6.3 -9.5 | 179 | 262 | 7 |
| 9.5 – 12.7 | 165 | 255 | 8 |
| 12.7 - 25 | 152 | 248 | 8 |
| 25- 50 | 138 | 234 | 6 |
| 50 - 80 | 124 | 234 | 7 |
| AZ31B-H26 | 6.3 - 10 | 186 | 269 | 6 |
| 10 – 12.5 | 179 | 262 | 6 |
| 12.5 - 20 | 172 | 255 | 5 |
| 20 – 25 | 159 | 255 | 5 |
| 25 - 40 | 152 | 241 | 5 |
| 40 - 50 | 241 | 148 | 5 |
The sheet and plate shall conform to the tensile requirements in
above Table unless other agreement is made between seller and
purchaser. Mechanical Properties for sizes and tempers not shown in
above Table shall be as agreed upon by seller and purchaser.
OTHER PROPERTIES
Typical Hadness
O temper: 67 Rockwell E
H24 temper: 83 Rockwell E
MACHINING
Magnesium alloy plate AZ31B, like all magnesium alloy sheet and
plate, machines faster than any other metal. Providing the geometry
of the part allows, the limiting factor is the power and speed of
the machine rather than the quality of the tool material. The power
required per cubic centimeter of metal removed varies from 9 to 14
watts per minute depending on machining operation.
DENT RESISTANCE
Weight for weight, AZ31B-H24 has proven to be superior to
competitive materials in its resistance to denting at moderate
energy levels.
Dent Resistance of 1mm Gauge Sheet (Dent depth in mm from 25mm
spherical redius indentor on 350mm span)
| Impact Energy 0.34 J | Impact Energy 0.62 J | Impact Energy 1.25 J |
AZ21B-H24 6061 – T6 3003 – H14 5052 – H34 2024 – T6 SAE 1010 Mild Steel | 0.66 0.94 2.24 1.55 0.99 1.09 | 1.42 1.52 3.23 2.41 1.52 1.70 | 2.34 2.46 4.90 3.35 2.29 2.67 |
SURFACE TREATMENT
All the normal chromating, anodizing, plating, and finishing
treatment are readily applicable. AZ31B also responds well to
plasma electrolytic oxidation finishing.
CORROSION RESISTANCE
Continuous exposure for 2.5 years.
Marine Atmosphere
AZ31B-H24 0.008mg.cm-2d-1
Mild steel 0.323mg.cm-2d-1
Industrial Atmosphere
AZ31B-H24 0.013mg.cm-2d-1
Mild steel 0.055mg.cm-2d-1
Rural Atmosphere
AZ31B-H24 0.006mg.cm-2d-1
Mild steel 0.032mg.cm-2d-1
Contact me for more details:
Vivian Jiang
International Marketing & Sales Manager
Email: vivian@hbnewmaterial.com
Tel: +86-731-85717705
Fax: +86-731-85716569
Mobile/whatsapp: +86-139-7488-3816
Skype: vivian.jjy
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