Specifications of Heavy Duty Steel Grating:  

1) The shape of bearing bar: Plain type (may be omitted in the symbol of steel grating), Serrated type and I-Shape type 
2) Bearing bar pitches can be 12.5, 15, 20, 30, 30.16, 32.5, 34.3, 40, 60mm, of which 30mm & 40mm are recommended
3) Cross bar pitches can be 38, 50, 60,100mm, of which 50mm & 100mm are recommended
4) Surface treatment: Hot-dip galvanizing, paint or other anti-corrosive coatings are available, of which hot-dip galvanizing is generally recommended
5) Material: ASTM A36/SS235JR/SS400/Q235B 
6) Tolerance 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. 

Specifications of Heavy Duty Steel Grating:  

1) The shape of bearing bar: Plain type (may be omitted in the symbol of steel grating), Serrated type and I-Shape type 
2) Bearing bar pitches can be 12.5, 15, 20, 30, 30.16, 32.5, 34.3, 40, 60mm, of which 30mm & 40mm are recommended
3) Cross bar pitches can be 38, 50, 60,100mm, of which 50mm & 100mm are recommended
4) Surface treatment: Hot-dip galvanizing, paint or other anti-corrosive coatings are available, of which hot-dip galvanizing is generally recommended
5) Material: ASTM A36/SS235JR/SS400/Q235B 
6) Tolerance 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. 
7) Standard:

7) Standard:

Anleitung für die Auswahl von schweren Stahlrost:

Instruction of Selecting Heavy Duty Steel Grating:

Verpackung von Schwerstahlgittern

Shanghai Metal Products wird gemäß den Vorschriften und Kundenwünschen verpackt und etikettiert. Es wird sorgfältig darauf geachtet, Schäden zu vermeiden, die während der Lagerung oder des Transports auftreten können. Zusätzlich sind klare Etiketten an der Außenseite der Verpackungen markiert, um die Produkt-ID leicht identifizieren zu können. und Qualitätsinformationen.

1) Shanghai Metal Standard

2) Customization

Shanghai Metal bietet standardmäßige seetüchtige Verpackung, mit Holzpalette, Kunststoff umwickelt und Flachstahlband fixiert.

Packaging of Heavy Duty Steel Grating

Shanghai Metal Products are packed and labeled according to the regulations and customer’s requests. Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I.D. and quality information. 

1) Shanghai Metal Standard

2) Customization

Shanghai Metal provides standard seaworthy package, with wooden pallet, plastic wrapped and flat steel strip fixed.

Anwendungen von Hochleistungs-Stahlgitter:

1) Ebene: für Bodenbelag, Bürgersteig, Entwässerungsgrubenabdeckung, Treppenlauf, usw.

2) Gezackt: Bessere rutschfeste Eigenschaften und Sicherheit im Vergleich zu glattem Gitter

3) I-Form: leichter, sparsamer und praktischer im Vergleich mit glattem Gitter

Applications of Heavy Duty Steel Grating:

1) Plain: for flooring, sidewalk, drainage pit cover, stair tread, etc. 

2) Serrated: Better non-skid property & safety compared with plain grating

3) I-shape: lighter, more economical and practical comparing with plain grating