AZ31B is a wrought magnesium base 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). Our sheet
and plate’s size range is:
Sheet: thickness from 0.5mm to 6mm; Max. width is 600mm; Max.
length is 6000mm;
Plate: thickness from 6 mm to 200mm; Max. width is 2000mm; Max.
length is 6000mm;
Block: We can supply precut blocks according to customer’s
Sheet and plate in AZ31B find application in medium strength
service at temperatures below 150°C. Diverse uses including
aerospace, aircraft, concrete tools, 3C (cell phone / camera /
computer), speaker cones and textile machinery can all benefit from
light weight AZ31B.
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.
Mn: 0.20 – 1.0%
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
No thermal treatment is available for increasing the strength of
this alloy after fabrication.
|Alloy and Temper||Thickness (mm)|
0.2% offset (MPa)
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|
|9.5 – 12.7||165||255||8|
|12.7 - 25||152||248||8|
|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||148||241||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.
O temper: 67 Rockwell E
H24 temper: 83 Rockwell E
Excellent weldability with gas shielded arc using AZ61A (preferred)
or AZ92A filler rod; post weld stress relief is required to prevent
stress corrosion cracking. Resistance welding is excellent.
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.
Weight for weight, AZ31B-H24 has proven to be superior to
competitive materials in its resistance to denting at moderate
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|
6061 – T6
3003 – H14
5052 – H34
2024 – T6
SAE 1010 Mild Steel
All the normal chromating, anodizing, plating, and finishing
treatment are readily applicable. AZ31B also responds well to
plasma electrolytic oxidation finishing.
Continuous exposure for 2.5 years.
Mild steel 0.323mg.cm-2d-1
Mild steel 0.055mg.cm-2d-1
Mild steel 0.032mg.cm-2d-1
XIAN YUECHEN METAL PRODUCTS CO., LTD. (XYMCO) is one of the leading
manufacturer of magnesium alloy products located in Xincheng
Hi-Tech Industry Estate, Xi’an, Shaanxi, China, who is specialized
in the development, manufacture and supply of magnesium alloy
products worldwide included magnesium tooling plate, magnesium
alloy plate, magnesium alloy sheet, magnesium alloy slab, magnesium
alloy bar, magnesium alloy billet, magnesium alloy rod, magnesium
alloy tube, magnesium alloy pipe, magnesium alloy profile,
magnesium welding wire, magnesium alloy extrusion, magnesium alloy
stamping, magnesium alloy casting, magnesium alloy forging and semi
- fabricated component according to customer’s design.
We comply with the specifications:
GB5153-03, GB5154-04, AMS4377G, ASTM B90/B90M-15, MIL-DTL 32333,
MIL-T-38749, QQ-M-44B, ASTM B107/B107M-13 and ASTM B91-97
Material grades: AZ31B, AZ61A, AZ80A, AZ91D, AZ41M, ZK60, AM50,
AM60, ZM21, MIA, ME20M, EQ21, WE43, WE54, ZE41, etc.
Our main products and capabilities are as follows:
1. Magnesium tooling plate: Max. Thickness: 300mm; Max. Width:
2000mm; Max. Length: 6000mm
2. Magnesium alloy cast slab: Max. Size: 400 x 1000 x 3000mm
3. Magnesium alloy sheet: Min. Thickness: 0.5mm; Max. Width: 600mm;
Max. Length: 2000mm
4. Magnesium cast billet: Min. Diameter 90mm; Max. Diameter: 600mm;
Max. Length: 6000mm
5. Magnesium alloy extruded wire: Dia.1.0mm – 8.0mm in spool.
6. Magnesium alloy extruded rod: Min. Dia. 8mm; Max. Diameter:
450mm; Max. Length: 3000mm
7. Magnesium extrusions:
Round tube: Max. OD600mmx thickness 125mm
Square tube: 430 x 430mm
Flat bar: 920 x 160mm
U-Shape: 800 x 300mm
Rectangular: 700 x 200mm
8. Magnesium-Lithium Alloy rod, sheet, plate and tube.
Our products already were exported to USA, Japan, Israel, India,
Germany, Iran, Columbia, Italy and UK. Good quality, good price and
Looking forward to your enquiry and hope a prosperous cooperation
can be established between us.