Expanded Metal


Qinghe Expanded Metal is formed in an expanding press. The basic metal is concurrently slit and cold-formed, which expands the slits into square, diamond, hexagonal, decorative shaped. Expanded metal is a form of metal stock made by shearing a metal plate in a press, so that the metal stretches, leaving diamond-shaped voids surrounded by interlinked bars of the metal. The most common method of manufacture is to simultaneously slit and stretch the material with one motion. Expanded Metal may be produced from carbon steel, galvanized steel, stainless steel, a variety of copper, aluminum, brass, Monel, nickel, steel, and zinc. Expanded Metal has thousands of applications for enclosure, protection, support, decoration and filtration, including grills, fencing, walkways, furniture, etc.

There are the following types of expanded metal by material and hole types:

Carbon Steel Expanded Metal
Stainless Steel Expanded Metal
Aluminum Expanded Metal
Expanded Aluminum Foil
Micro Hole Expanded Metal
Precision Expanded Mesh
Decorative Expanded Metal



SWD: The distance from a point on a bond to a corresponding point on the following bond measured across the Short Way of Design. This distance is also sometimes referred as “pitch SWD”.

LWD: The distance from a point on a bond to a corresponding point on the following bond measured across the Long Way of Design. This distance is also sometimes referred as “pitch LWD”.

SWO: Short Way of Opening, the distance measured from the inside of the bond across to the inside of the bond SWD.

LWO: Long Way of Opening, the distance measured from the inside of the bond across to the inside of the bond LWD.

Bond: The intersection of two strands and it is always the width of two strands.

Strand Thickness: Gauge thickness of sheet metal material of expanded metal.

Strand Width: Amount of metal fed under dies to produce the expanded metal strand.

Expanded Metal Hole Terms Discription Drawing

Flattened & Un- Flattened

Un-flattened Expanded Metal: Expanded metal mesh as it comes off the machine. The strands and bonds are set at a uniform angle to the plane of the sheet. This adds strength and rigidity, allows air circulation, distributes the load on the metal to the supporting frames as well as making a skid resistant surface.

Flattened Expanded Metal: Manufactured by passing the standard expanded metal mesh sheet through a cold roll reducing mill parallel to the LWD. By flattening the sheet, the bonds and strands are turned down to produce a smooth and flat surface, reducing the overall thickness and extended the diamond pattern (LWD). Cross roll flattening is done by passing the expanded metal sheet through a cold roll reducing mill parallel to the SWD. The result is the same except the diamond pattern SWD is extended.

Flattened Expanded Metal

Un-flattened Expanded Metal


Carbon steel expanded metal materials
Hot-rolled carbon steel, Cold-rolled carbon steel

Stainless steel expanded metal materials
AISI302, AISI304, AISI304L, AISI304H, AISI310, AISI316 and AISI316L, AISI430

Aluminum Expanded Metal materials
Aluminum 1060, 3003, 5050,1100, 1145, 1070, 5052, 6061-T6, 7075, 8011.


From 0.3MM to 15MM

Hole size:

Min: SWM X LWM : 1MM X 2MM
Max: SWM X LWM : 200MM X 400MM

Width: 1000MM, 1220MM, 1250MM, 1500MM. The measurement of the shortest side of the sheet or cut-to-size expanded metal piece. The max size is bounded by the thickness. In generally speaking, more than 3MM thickness expanded metal, the max size is 10 feet

Length: The measurement of the longest side of the expanded metal sheet or cut-to-size piece. In rolls, the Max length is 100 feet

Expanded Metal Architectural Design

Expanded Metal Micro Hole

Expanded Metal Grating Heavy Duty

Expanded Al. Foil Custom Rolls

Expanded Metal Fence 

Expanded Metal Big Hole 

Expanded Aluminum Facade

Expanded Stainless Steel Welded Tube

Expanded Metal Powder Coated See Through Mesh

Carbon Steel-Stardard(Un-Flattened) Specification
DescriptionThicknessSWDLWDStrand WidthWeight
S2.5 L4.5 W0.50.01970.50.09842.50.17724.50.01970.51.570.32
S3.0 L6.0 W0.50.01970.50.118130.236260.01970.51.310.27
S3.0 L6.0 W1.00.01970.50.118130.236260.039412.620.54
S3.2 L8.0 W0.60.01970.50.1263.20.31580.02360.61.470.3
S5.0 L10.0 W0.70.01970.50.196950.3937100.02760.71.10.23
S6.0L12.5 W0.80.01970.50.236260.492112.50.03150.81.050.21
S7.0L14.0 W0.90.01970.50.275670.5512140.03540.91.010.21
S8.0 L16.0 W1.00.01970.50.31580.6299160.039410.980.2
S9.0 L20.0 W1.10.01970.50.354390.7874200.04331.10.960.2
S10.0 L25.0 W0.50.01970.50.3937100.9843250.01970.50.390.08
S10.0 L25.0 W1.10.01970.50.3937100.9843250.04411.10.880.18
S12.0 L30.0 W1.40.01970.50.4724121.1811300.05311.40.880.18
S1.4 L2.7 W0.60.02360.60.05511.40.10632.70.02360.64.040.83
S1.9 L2.7 W0.60.02360.60.07481.90.10632.70.02360.62.970.61
S2.0 L3.0 W0.60.02360.60.078720.118130.02360.62.830.58
S2.5 L3.8 W0.70.02360.60.09842.50.14963.80.02760.72.640.54
S3.0 L3.8 W0.70.02360.60.118130.14963.80.02760.72.20.45
S4.2 L6.5 W0.80.02360.60.16544.20.2526.40.03150.81.790.37
S5.3 L12.7 W0.90.02360.60.20875.30.512.70.03540.91.60.33
S6.0 L10.2 W0.90.02360.60.236260.401610.20.03540.91.410.29
S7.0 L15.2 W1.10.02360.60.275670.598415.20.04331.11.480.3
S7.0 L20.3 W1.10.02360.60.275670.799220.30.04331.11.480.3
S10.0 L25.0 W1.00.02360.60.3937100.9843250.039410.940.19
S5.3 L12.7 W1.20.03150.80.20875.30.512.70.04721.22.840.58
S6.0L10.2 W1.00.03150.80.236260.401610.20.039412.090.43
S7.0 L15.2 W1.20.03150.80.275670.598415.20.04721.22.150.44
S8.9 L20.3 W1.30.03150.80.358.90.799220.
S12.0 L30.0 W1.40.03150.80.480312.21.1811300.05311.41.390.28
S12.7 L30.5 W1.80.03150.80.512.71.200830.50.0721.81.810.37
S14.7 L38.1 W1.80.03150.80.578714.71.538.10.0721.81.560.32
S15.0 L40.0 W1.70.03150.80.5906151.5748400.06611.71.410.29
S33.8L76.2 W2.40.03150.81.330733.8376.20.09492.40.90.18
S7.9 L25.4 W1.80.03540.90.3117.9125.40.0721.83.270.67
S12.7 L30.8 W1.80.03540.90.512.71.212630.80.0721.82.040.42
S5.0 L10.0 W1.00.039410.196950.3937100.039413.140.64
S8.0 L20.0 W2.00.039410.31580.7874200.078723.930.8
S10.0 L25.0 W1.10.039410.3937100.9843250.04411.11.760.36
S10.0 L30.0 W3.00.039410.3937101.1811300.118134.710.96
S12.0 L30.0 W1.40.039410.4724121.1811300.05311.41.770.36
S15.0 L40.0 W1.70.039410.5906151.5748400.06611.71.760.36
S7.9 L25.4 W1.80.04721.20.3117.9125.40.0721.84.360.89
S12.0 L30.0 W1.40.04721.20.4724121.1811300.05311.42.120.43
S12.7 L30.5 W2.20.04721.20.512.71.200830.50.0852.23.20.66
S14.7 L38.1 W2.20.04721.20.578714.71.538.10.0852.22.770.57
S15.0 L40.0 W1.70.04721.20.5906151.5748400.06611.72.110.43
S18.0 L50.0 W2.00.04721.20.7087181.9685500.079922.120.44
S20.8 L50.8 W2.30.04721.20.818920.8250.80.09022.32.070.42
S33.8 L76.2 W1.70.04721.21.330733.8376.20.06811.70.960.2
S12.7 L30.5 W2.30.05911.50.512.71.200830.50.09212.34.340.89
S18.0 L50.0 W2.00.05911.50.7087181.9685500.079922.660.54
S22.0 L60.0 W2.50.05911.50.8661222.3622600.09722.52.640.54
S23.0 L60.0 W2.60.05911.50.9055232.3622600.10242.62.660.55
S23.4 L50.8 W2.60.05911.50.921323.4250.80.10122.62.590.53
S25.4 L60.7 W2.20.05911.5125.42.389860.70.0872.22.050.42
S33.8 L76.2 W2.70.05911.51.330733.8376.20.10792.71.910.39
S1.00 L30.0 W2.50.0631.60.3937101.1811300.09842.56.281.29
S10.0 L30.0 W3.00.0631.60.3937101.1811300.118137.541.54
S12.0 L30.5 W1.50.0631.60.4724121.200830.50.05911.53.140.64
S15.0 L40.0 W3.00.0631.60.5906151.5748400.118135.021.03
S22.0 L50.8 W2.00.0631.60.866122250.80.078722.280.47
S25.0 L50.0 W3.00.0631.60.9843251.9685500.118133.010.62
S25.0 L61.0 W2.50.0631.60.9843252.4016610.09842.52.510.51
S18.0 L50.0 W2.10.078720.7087181.9685500.08272.13.660.75
S22.0 L60.0 W2.60.078720.8661222.3622600.10242.63.710.76
S25.0 L50.0 W3.00.078720.9843251.9685500.118133.770.77
S29.0 L80.0 W3.30.078721.1417293.1496800.12833.33.530.72
S36.0 L100.0 W4.10.078721.4173363.9371000.15944.13.530.72
S44.0 L120.0 W5.00.078721.7323444.72441200.194953.530.72
S12.0 L30.5 W3.00.09062.30.4724121.200830.50.118139.031.85
S22.0L50.8 W2.50.09062.30.866122250.80.09842.54.10.84
S23.4 L50.8 W3.70.09062.30.921323.4250.80.14413.75.651.16
S25.0 L61.0 W3.00.09062.30.9843252.4016610.118134.330.89
S33.8 L76.2 W2.70.09062.31.338634376.20.10632.72.870.59
S33.8 L76.2 W3.50.09062.31.338634376.20.13823.53.730.76
S47.0 L101.6 W4.20.09062.31.8504474101.60.16424.23.20.66
S50.0 L152.4 W3.50.09062.31.9685506152.40.13783.52.530.52
S15.0 L40.0 W3.00.09842.50.5906151.5748400.118137.851.61
S25.0 L50.0 W4.50.09842.50.9843251.9685500.17724.57.071.45
S50.0 L80.0 W4.50.09842.51.9685503.1496800.17724.53.530.72
S20.0 L60.0 W3.00.118130.7874202.3622600.118137.071.45
S25.0 L50.0 W3.00.118130.9843251.9685500.118135.651.16
S25.0 L50.0 W4.50.118130.9843251.9685500.17724.58.481.74
S36.0 L100.0 W4.10.118131.4173363.9371000.15944.15.31.09