• black galvanized steel Z purlin pre-galvanized steel Z purlin System 1
  • black galvanized steel Z purlin pre-galvanized steel Z purlin System 2
  • black galvanized steel Z purlin pre-galvanized steel Z purlin System 3
  • black galvanized steel Z purlin pre-galvanized steel Z purlin System 4
  • black galvanized steel Z purlin pre-galvanized steel Z purlin System 5
  • black galvanized steel Z purlin pre-galvanized steel Z purlin System 6
black galvanized steel Z purlin pre-galvanized steel Z purlin

black galvanized steel Z purlin pre-galvanized steel Z purlin

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
50000 m.t./month

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Specification

Standard:
GB
Technique:
Hot Rolled,Cold Rolled
Shape:
Z
Surface Treatment:
Galvanized,Black
Steel Grade:
Q195,Q235B,Q355B
Thickness:
1.5-3mm
Width:
40-300
Length:
1-12m or customized
Net Weight:
3.925-11.775kg/m

We supply ms equal & unequal angle bar, channel bar,jis channel, upn, steel i beam,h beam, ipe, ipeaa, steel sheet pile, flat bar, hollow section, tmt bar, wire rod, binding wire, wire mesh, hrc, CRC, gi coil, ppgi, roofing sheet, chequered coil & plates, medium plate, scaffolding systems, prefabricated container houses etc. Also for metal & steel processing.

If you are in the market for any steel products, please feel free to contact us.


  • Thickness: 1.2-3.1mm, Material: Galvanized (GI),

  • Cold Rolled (CR)

  • Width : any size within 120-300mm

  • Height: any size within 30-80mm

  • Lips: any size within 10-20mm

  • Inner Angel: 135 & 90 degree

Z Purlins are made using cold-formed or rolled sheets for supporting roof. The flexible shape of these beams facilitates various designs solutions. These purlins are extensively used in huge roofing solutions such as godowns, workshops, industrials sheds and many more. The range is known for saving upto 50% on structural sheet in comparison with hot rolled angles. 

Advantages :

  • Ability to span length

  • Saving in Steel up to 40%

  • Fast to erect and easy handling

  • No side drilling/cutting required

  • Assured dimensions and straightness

  • Purlin erection is easier than others

  • Saving in construction cost up to 30%

  • High durability, versatility and uniform quality

  • Close tolerances on sectional dimensions owing to process of cold roll forming


Q: What does "M" mean?
M section steel: sectional shape steel like M.
Q: Does the profile include H?
Profiles include section H steelThe online quote H steel and profiles in the angle of groove separate quotation, mainly because H steel has great use compared with the other, and the demand is relatively more, but in some cases, and H type steel I-beam can also substitute for each other.
Q: What does "BH" mean?
In accordance with the different smelting quality of steel, steel is divided into ordinary steel and high quality steel. According to the current catalogue of metal products, ordinary steel can be divided into large section steel, medium section steel and small section steel. The section steel can be divided into I-beam, channel steel, angle steel, round steel and so on according to its sectional shape.
Q: Elastic modulus of section steel
Generally speaking, the elastic body exerts an external function, and the elasticity experiences the change of the shape (called strain). The general definition of the elastic modulus is that the stress is divided by the strain. When the material is in the elastic deformation stage, its stress and strain should be changed into a positive proportion (that is to say, according to Hooke's law), and the coefficient of proportionality is called the elastic modulus.
Q: What kind of steel is used in steel columns?
The steel sheet pile has various forms, and the sides of the steel sheet and the joint groove are different in shape. The second plate, after the first one is in place, takes the front sheet of the sheet pile and the side notch is used as the driving point. As a result, a plurality of sheet piles may form relatively complete sheet pile walls along the coast (or bank of the river). In addition, a group of steel sheet piles can be used for temporary retaining protection when the foundation pit is excavated or excavated.
Q: What is special steel?
Plough steelUsed in the manufacture of general purpose plow, plows, shallow tillage implements main plough and ordinary before plow ploughshare, general wear and has sufficient strength and toughness of the steel. China's general use of 65Mn and 65SiMnXt steel. In addition, often make tools steel and special steel shape. Such as T steel, Z steel, arc type steel, double reinforcing steel, strengthen the font, grass blade steel, flat steel and steel rod concave lines. The cold-formed steel: cold-formed steel is the main material for the production of light steel structure, made of steel or steel roll forming. It not only the wall thickness can be made very thin, but also greatly simplifies the production process, improve production efficiency, can be produced using the general method to produce uniform wall thickness and complex cross sections of various shapes and different materials of cold-formed steel cold-formed steel. Except for the building structure, but also widely used In vehicle manufacturing, agricultural machinery and so on. A lot of cold-formed steel varieties, according to the opening section, semi closed, closed. According to the shape of a cold roll, angle steel, Z steel, square tube, rectangular tube, special pipe, shutter door according to the provisions of GB6725-92, cold-formed steel with ordinary carbon negative structure and quality carbon steel, low alloy steel plate or strip made of cold-formed structure
Q: Can the section steel butt joint in the end?
Docking is usually available.If welding, it is mainly worried that the welding is not strong and the welding stress is too large. The wall thickness of the section steel is thin, and the butt welding itself is the most unreliable. So, in the joint lining board, fillet welded. Attention is paid to reducing stress in the process.Bolt connection also requires lining plate, pay attention to bolt size, quantity and spacing. To calculate whether thin-walled steel itself will be crushing, the solution is solder paste board, and bolt holes.In short, the principle is that the strength of the butt joint is not weaker than that of other parts, and there is no greater stress.
Q: What are the common types of profiled steel?
Section steel is divided into two types: simple section steel and complex section steel.Simple section steel: steel, wire rod, square steel, flat steel, six angle steel, triangular, elliptical steel, steel arch steel, etc..
Q: How to distinguish cold formed section steel and hot rolled section steel?
Cold-formed steel is one of many varieties of steel in the strip width, under normal temperature conditions after the roll, a group of vertical deformation gradually, to meet the requirements of the use of shape and size, then determine the size of the corresponding shear length. This product is cold-formed steel. Of course, it is also possible to obtain cold-formed steel by stamping, bending or drawing. But the roll bending forming method is suitable for industrial production in large quantities. Its product quality, processing cost and production efficiency are incomparable with other methods, and it is the main production process of cold-formed steel. If the equipment is equipped with welding equipment (such as high-frequency welding, argon arc welding, etc.), it can also produce cold rolled steel with closed section.

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