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Luoyang Magnesium Gurnee Metal Material Co.;Ltd
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AZ31B Magnesium alloy plate

AZ31B Magnesium alloy plate

Place of Origin : China
Brand Name : MGurnee
Price : USD 20 / KG
Packaging Details : Standard wooden case
Delivery Time : 15~20 days
Payment Terms : T/T L/C D/A D/P
MOQ : 50KG
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Product Description:
Material: az31b;
Chemical Composition:ALMGZN
Sheet: Tks: 1 - 6mm; Max. width: 600mm;
Max. length: 6000mm;
Plate: Tks: 6 - 200mm; Max. width: 2500mm;
Max. length: 6000mm

Our Advantage

Process:Semi-Casting ,then Hot Rolling

Size:Max thickness 150mm,Width 3000mm, Length 6000mm.

Surface clear:Water Polishing & Machining/Cleaning,Shinning

Production Process

Magnesium Plate is produced by process semi-casting and hot rolling with tons rolling machine.

Semi-casting is through using vertical casting and is colded by constant temperature well water under around during casting processing. Making casting completedly slabs(billets) have very small grain and very tight spacing between grain and grain.

Ensuring perfect inner quality.This point can be verified that we used Inspection method for macrostructure of wrought magnesium alloy products.

We produce magnesium alloy plate conforms to MIL-T-38749(USAF) Standard.

Normal mention to Magnesium Tooling Plate is pointed magnesium alloy hot rolling platewhich is through heating treament state H24, H26,O.

So Magnesium Tooling Plate ia also called AZ31B H24 magnesium alloy plate.

Have a perfect flatness and good surface with moderate strength and ductility.

magnesium plate

Military Specification T-38749 Magnesium Plate Requirement Flatness

Table1 Squareness Tolerances




Allowable Difference in Length of Diagonals,Inches



18 Ins

Over 18


48 Ins

Over 48


120 Ins

Over 120


144 Ins

Over 144


180 Ins

Over 180


240 Ins

0.250-0.500 ......3/83/83/83/87/169/16
0.501-1.00 ......1/21/21/21/29/165/8
1.001-3.000 ......5/85/85/85/83/43/4
3.001-3.500 ......111111

Table2 Flatness Tolerances

Thickness, InchesDeviation from Flat (Inches)
In Any 1 FootIn Any 6 Feet
0.250-1.000 ......0.0050.015
1.001-3.500 ......0.0100.020

Detailed Information

MaximumThickness: 250mm

Maximum width: 2500mm
Maximum length: 6000mm

Normal size(Inches):

T x W x L

T x W x L

0.25" x 49.21" x 157.48"

0 .875" x 36" x 72"



0.375"× 98.43" x 157.48"

1.000"× 98.43" x 157.48"

0.394" x 49.21" x 157.48"

1.25× 49.21" x 157.48"

0.5" x 49.21" x 157.48"

1.25× 98.43" x 157.48"

0.5" x 98.43" x 157.48"

1.50 x 49.21" x 157.48"

0.591" x 49.21" x 157.48"

1.50 x 98.43" x 157.48"

0.591" x 98.43" x 157.48"

1.75 "×39.40"×78.70"

0.787" x 49.21" x 157.48"

1.75 "× 98.43" x 157.48"

0.787" x 98.43" x 157.48"

1.95 "×39.40"×78.70"

0.675" x 39.40"×78.70"

1.95 "× 98.43" x 157.48"

0.675 "x x 98.43" x 157.48"

2.0 "× 98.43" x 157.48" "



Also production as clients' requirement sizes.

Material AZ31B H24; H26;AZ91D;AZ80A

Magnesium alloy plate with a small specific gravity, high intensity , high wear-resisting performance, has some of the corrosion resistance and resistance to radiation performance, good chemical stability against the alkali and mineral,and good weldability and workability.


the aerospace industry, automotive, vibration platform,electronic and other military industrial and civil industry;

Production Process

semi-continue casting Hot rolling process; ensuring the product good mechanical properties;refinement of grain structure; high strength and great ductility.

hot rolling process:ensuring perfect inner quality without any flaw,slag, hole, burrs or scratches.

Supply plate size : thickness from 6 mm to 300mm; Max. width is 3000mm; Max. length is 6000mm;

• Technology Inspection & Produce Standard

ASTM B90/B90M-07; AMS 4375; AMS 4376; AMS 4377

Also can produce as clients's stardand.

• Chemical Composition

magnesium plate

• 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.


Typical Hardness

O temper: 67 Rockwell E

H24 temper: 83 Rockwell E

• Weldability

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.

• Machining

AZ31B, like all magnesium alloy plate and sheet, 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


6061 – T6

3003 – H14

5052 – H34

2024 – T6

SAE 1010 Mild Steel



















• Surface Treatment

All the normal chromating, anodizing, plating, and finishing treatment are readily applicable. AZ31B also responds well to plasma electrolytic oxidation finishing.

magnesium platemagnesium platemagnesium plate


Those applications requiring a flat surface or high dimensional stability benefit from the use of magnesium plate. Typical uses included Aircraft .Aerospace ,jigs, fixtures, optical benches, vibration test equipment and inspection gauges. Magnesium Plate is non-magnetic and has high electrical and thermal conductivity filling many material requirements in the electronics and computer industries.

Contact information:

magnesium plate


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