Q235 OUTDOOR Galvanized METAL IRON STAIR TREADS STEEL STEPS STAIRCASE

Tread stair of steel grating is made from the steel grating (plain style,serrated style and I
bar type) and to any dimensions to suit the relevant stairway.

Our stair treads have 8 types, they are:

1: Stair Tread without Nosing, Welding fixing

2: Stair Tread without Nosing, Bolted fixing

3: Stair Tread with Checkered Plate Nosing, Welding Fixing

4: Stair Tread with Checkered Plate Nosing, Bolted fixing

5: Stair Tread with Vertical Striped Plate Nosing, Welding fixing

6: Stair Tread with Vertical Striped Plate Nosing, Bolted fixing

7: Stair Tread with Perforated Plate Nosing, Welding fixing

8: Stair Tread with Perforated Plate Nosing, Bolted fixingYou can choose any type above, and we also can supply customized products

ISO 9001-2000 manufacture and export steel tread, steel stair tread , steel step, stair tread, steel ladder

Steel is high strength, light weight, strong stiffness, therefore it is widely employed for the construction of large-span and super-high, super-heavy buildings; it is the ideal elastomer with perfect material homogeneity and isotropy which is most consistent with the basic assumption of general engineering mechanics;

Material with perfect plasticity, toughness and large deformation can receive dynamic loads well; short construction period; it is widely used in Industrials, so it is available with high degree of mechanization of specialized production; due to its high precision, high efficiency, good airtight , it can be used to build tanks, tanks and transformers. The disadvantage is poor fire resistance and corrosion resistance.

1) Bearing bar (Load Bar)specifications(mm):

The specification of plain type is 20*3 to 100*10

2) Bearing Bar pitch (center to center):

12.5,15,25,30,30.16,32.5,34,40,41,41.25,45,50,60,60.32,80,100mm etc,also be according to client’s requirement and 30,40,60mm are recommended.

3) Cross Bar pitch(center to center):

38,50,76,100,101.6mm etc,also be according to client’s requirement and 50,100mm are recommended ,American standard is available.

4) Material:

Mild Steel (Low Carbon Steel) or Stainless Steel

5) Surface treatment:

Untreated,Painting or Hot dipped galvanzied

6) Steel grating standards:

A) China:YB/T4001

B) USA:ANSI/NAAMM(MBG531)

C) UK:BS4592

D) Australia:AS1657

E) Japan:JJS

Recommend stair tread width:

Stair tread max-length:

Production