T1 Steel Grating Stair Treads - China

Serrated Bar Steel Grating

Serrated Bar Steel Grating Supplier

Our company produces complete steel ladders with hand railings which are made of grating treads.

According to whether the nosing to be used and the methods of mounting to stringers, grating treads are classified into four types, expressed as T1, T2, T3 and T4 - In view of economics it is advisable to use the recommended lengths and widths below

SPECIFICATIONS

T1 Welded Fixing without Nosing Type of Stair Treads Checkered plate nosing Structure Characteristics

T1 NO For installation by welding, the two ends are closed with flat bars which are the same with the bearing bars in length.

Without checkered plate nosing.

Recommended Stair Treads Width T1, T2, T3, T4 Bearing bar at 30mm pitch 95 125 155 185 215 245 275

T1, T2 Bearing bars 40mm pitch 125 165 205 245 285

T3, T4 Bearing bars 40mm pitch 115 155 195 235 275

Fixing hole centers 45 75 100 150

Grating Size Grade CN: Q235, Q345, USA: A36, UK: 43A

Standard CN: YB/T4001-1998, USA: ANSI/NAAMM, UK: BS4592-1987, AUS1657-1988, JJS

Certification CE, GOST, ISO9001, ISO14001, HSE

Bearing bar type Plain, Serrated (tooth-like), I bar (I section), Serrated-I

Bearing bar size 20X5, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4.75X8, 100X8mm, etc

Bearing bar pitch 20, 25, 30, 32.5, 34.3, 40, 50, 60, 62, 65mm

Cross bar size 5X5, 6X6, 8X8mm (twisted bar)/5, 6, 8mm ( round bar)

Cross bar pitch 0, 50, 60, 65, 76, 100, 101.6, 120, 130mm, etc.

Panel size 3x20ft, 3x24ft, 3x30ft, 5800x1000, 6096x1000, 6400x1000, as request

Surface treatment Untreated, hot dip galvanized, cold dip galvanized, painted, powder coated, pickling, electrolytic polishing, or as customers' requirement.

Galvanization Standard CN: GB/T13912, USA: ASTM (A123), UK: BS729

Color Silver/Black

Application petroleum and chemical, port, power, transportation, papermaking, medicie, steel and iron, food, municipality, real estate, manufacturing

SURFACE TREATMENT Three ways of surface treatment can be adopted: galvanizing, painting and untreated, of which hot- dip galvanizing is recommended.

Hot-dip galvanizing It is a form of galvanization.

It is a process of coating steel grating with a thin zinc layer.

By passing the metal through a molten bath of zinc, the average coating thickness is 70μm when steel bards range from 3mm to 5mm in thickness.

Painting It is also a good way to get surface protective film.

Coating thickness depends on the customer's choice.

Company Contact:

• Posted By: Yantai Haorui Metalwork Co.,Ltd.

• Phone: 13256389268

• Address: In the Qing Yang Industrial park District 31 Yunlong mountain Road, Fushan District Yantai City , Sh, yantai , shandong , China

• Email:

• Business Description: Yantai Haorui Metalwork Co., LTD. is specialized in production of all kinds specification of bonding manual welding steel grating, stainless steel grating, handrails, steel ladder, various kinds of steel structure and all kinds of stamping products.
  
  Having advanced bonding steel grating equipments & technology and CAD design system for gratings, we can serve the customers with perfect layout design of gratings.
  
  Since its establishment, the company perennially exports products to Japan, South Korea, Australia, British, and other countries & regions.
  
  In addition, the products get wide application in domestic hundreds of national key investment projects, The products are well-noted at home and abroad for their superior quality, reasonable price and excellent service.
  
  Haorui Metalwork conforms to China standard YB/T4001.1-2007, and can also be manufactured to U.S. standard ANSI/NAAMM(MBG531-93) or British s btandard BS4592-1: 1995 - The company is located in Yantai Fushan District where communications and transportation are convenient.
  
  Customers at home and abroad are warmly welcomed to order Haorui.
  
  Adhering to the principle of "Quality First, Customer Satisfaction"，we are ready to do our best to provide superior service to the customers.
  
  Our Products:
  
  - Press Locked Steel Grating
  
  - I Type Steel Grating
  
  - Serrated Bar Steel Grating
  
  - Painted Steel Grating
  
  - Plain Type Steel Grating
  
  - Checkered Stair Treads
  
  - T4 Steel Grating Stair Treads
  
  - T3 Steel Grating Stair Treads
  
  - T2 Steel Grating Stair Treads
  
  - T1 Steel Grating Stair Treads