Product Details

Hot Dipped Galvanized steel grating stairs meet DIN 24531 Standard

Product descriptions

Steel grating stairs, also know as welded steel bar grating stairs, the most strong and durable metal grating products. They are made from the mild carbon steel or stainless steel. We provide a full solution of steel bar grating, press locked grating,heavy duty grating, steel stair treads,plank gratings,safety grating, trench cover,etc. All the gratings are extremely strong and durable for all the bearing application. And all grating products are fully recyclable.
Due to the extremely strong and durable for all the bearing application,steel grating stairs has become the most popular grating in the markets.The stability makes them have a much higher performance in the application.

We also can shear or form the steel gratings to any specification or desired shape. Because of those excellent characteristic,the steel grating stairs can be widely used in flooring,deck,walkway,platform.

Materials:
Mild Carbon Steel
Stainless Steel 304,316
Surface treatment:
Hot dipped Galvanized
Painting

Stair step is made up steel grating according to DIN 24537and treading section, which is reinforced by special profile with anti-slip arrangement.
Stair steps meet the requirements of DIN 24531 Standard
Stair steps are fixed into staircase structure on step sides made from flats by 2 x 2 screws M12 (please see the picture)

Specification:

Cross bars : Dia. 5mm,6mm,8mm (Round bar)/5*5mm,6*6mm,8*8mm (Twist bar)
Cross bar spacing : 40,50,60,65,76,100,101.6,120,130mm, etc.
Bearing bars : 20*5,25*3,25*4,25*5,30*3,30*4,30*5,32*3,32*5,40*5,50*4… 75*8mm, etc.
Bearing bar spacing : 20,25,30,32.5,34.3,40,50,60,62,65mm

Steel grating stairs are available in a variety of bearing bar thicknesses,depth and spacing according to the applications and loading requirements.
They are also available in either smooth top or serrated of anti slip grating. As one of leading manufacturer and fabricator of electro forge welded steel grating in China, we supply a variety of sizes for shipment in panels or other specs.

1. material: low carbon steel,mid steel or stainless steel;
2. Surface treatment: nature, painting or hot dip galvanized;
3. Specification of steel grating: plain type (may be omitted in the symbol of steel grating), serrated type and I-shape type;
4. Tolerance of hot dip galvanized steel grating: the allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm; the non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar; cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm;
5. steel grating application: used in flooring, catwalk, mezzanines/decking, stair tread, fencing, ramp, dock, trench cover, drainage pit cover, maintenance platform, pedestrian/crowded pedestrian, factory, workshop, motor rooms, trolley channel, heavy loading area, boiler equipment and heavy equipment area, office buildings, apartments, train stations, department stores, hospitals,amusement parks,etc..

Material

Mild steel q. DD11
*Stainless steel q. AISI 304

l	s	h x t	n	(kg)
600	240	30 x 2	120	4,9
	270	30 x 2	150	5,4
	305	30 x 2	185	5,9
800	240	30 x 2	120	6,1
	270	30 x 2	150	6,7
	305	30 x 2	185	7,3
1000	240	30 x 2	120	7,3
	270	30 x 2	150	8,0
	305	30 x 2	185	8,7
1200	240	30 x 3	120	10,9
	270	30 x 3	150	11,6
	305	30 x 3	185	12,6
1200	240	40 x 2	120	9,9
	270	40 x 2	150	10,9
	305	40 x 2	185	11,9

Step dimensions can be manufactured due to Customer requirements. Step grating may be made with different agreed mesh size and type of upper side (smooth or with anti-slip arrangement). Stair steps also can be manufactured with another size of bearing rod.

Any arrangements like cut outs in treading section are not recommended . Spacings between holes for fixing screws may be arranged according to Customer requirement. Stair steps can be supplied in wide variety of lengths.

Application:

Steel grating stairs are widely used in flooring, catwalk, mezzanine,decking, stair tread, fencing, ramp, dock, trench cover, drainage pit cover, maintenance platform, wash rack, ventilation screen, storage rack, window and machinery safe guards, factory, workshop, motor rooms, trolley channel, heavy loading area, boiler equipment and heavy equipment area.
You also can choose our stainless steel grating if others specials environmental challenge. The stainless steel grating is used in and is also used in many gas and oil producers,chemical plants,food processing facilities and other commercial,architectural applications.

Feature:

Appearance: simple lines. Silver exterior, modern trends.
Best drainage: leakage area of 83.3%, more than double the cast iron.
Hot-dip galvanizing: rust-proof and strong, maintenance and replacement.
Security design: box with hinged lid and connection, security, safe, easy to open.
Saving investment: large span. When overloaded, the lowest ratio of iron and saves replacement costs stolen, then crushed.
High strength: strength and toughness is much higher than cast iron, can be used for terminals, airports and other large span and heavy load environment.
Specifications and more: meet different environment and loading requirement. Span, the desired size and shape.

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