Basic Knowledge of Wire Mesh - Initial Understanding of Raw Materials-Wire Rods

Wire rods are categorized into low-carbon steel wire rods 

and stainless steel wire rods, supplied in coiled form. The 

diameter ranges from 5 to 19 millimeters (typically 6-9 

millimeters).

(1) Low-carbon steel wire: Commonly known as iron wire, 

it contains a carbon content between 0.04% and 0.25%. The 

wire mesh industry typically uses low-carbon steel wire rods 

of grade Q195. Steel with a carbon content between 0.6% and 

1.35% is referred to as high-carbon steel, commonly known 

as steel, such as the commonly used manganese steels 45Mn 

and 65Mn. Steel with a carbon content between these two ranges 

is considered medium-carbon steel. Generally, carbon steel and 

low-alloy steel do not possess the chemical stability required 

for corrosion resistance.

Knowledge Corner: Q195 and Q235

• Chemical Composition:

• Q195: C ≤ 0.12%, Si ≤ 0.30%, Mn ≤ 0.50%, P ≤ 0.035%,

  S ≤ 0.040.

• Q235: C ≤ 0.22%, Si ≤ 0.35%, Mn ≤ 1.40%, P ≤ 0.045%,

  S ≤ 0.050.

• Mechanical Properties:

• Q195: Tensile strength of 390 MPa, elongation of 30%.

• Q235: Tensile strength of 490 MPa, elongation of 23%.

• Yield Strength and Applications:

• Q195: Yield strength of 195 MPa, used in construction,

  structures, motorcycle frames, etc.

• Q235: Yield strength of 235 MPa, less prone to deformation

  under stress.

• Market Notes:
  Q235 is sometimes inquired about internationally. However,

• it is less commonly used domestically due to its slightly higher

• price compared to Q195.