Factory-direct steel gratings & stair treads, shipped worldwide
Steel Grating Material
Grating Material: types, spans, load classes and materials compared in one guide.
Itemized quote within 24 hours · Free drawing review included
In-house weld & press lines
Electro-forging and press-locking under one roof
Certified & tested
Reports on request, MTC with every order
Samples in 5–7 days
Production in 15–25 working days
FOB Tianjin
Shipped worldwide, EXW / CIF negotiable
Quick answer
The Short Answer
The best metal for grating depends on the environment: Q235B carbon steel is the economical workhorse for dry industrial flooring, SS304 stainless suits food, washdown and most chemical areas, and SS316 stainless handles marine and chloride-heavy exposure. All three are produced here with mill test certificates on request.
Material grades
What Steel Grating Material Grades Does Dengtai Produce?
Three grades cover the entire range. Each enters production with its mill test certificate verified at goods-in, the first of our five QC stages.
Q235B carbon steel
The default grating material — strong, weldable and economical. Normally hot-dip galvanized to ASTM A123 / ISO 1461 for outdoor service. Pick it for industrial flooring, platforms and trench covers.
SS304 stainless
Corrosion-resistant without coating. The general-purpose stainless for food processing, breweries, washdown areas and most industrial platforms. No galvanizing needed.
SS316 stainless
Adds molybdenum for resistance to chlorides. The pick for marine decks, docks, coastal plants and chemical exposure where SS304 would pit.
Decision guide
When Should I Pick Q235B, SS304 or SS316?
Ask one question first: what will the grating touch? Dry air, rain and dirt point to galvanized Q235B. Washdown water and food point to SS304. Salt water and chlorides point to SS316. If you are unsure, send the environment with your enquiry — we match the grade, not the other way around.
Name the exposure
Indoor, outdoor, coastal, food-grade or chemical. This alone decides the grade family.
Coating or no coating
Q235B is hot-dip galvanized (2–3 days, included in the production window); stainless needs no coating.
Confirm the grade on the drawing
The steel grating material grade is written on the drawing and on the MTC — SS304/SS316 verified against mill test certificates.
Comparison table
Steel Grating Materials at a Glance
The honest comparison between the three grades we produce — strength, corrosion and cost position without invented numbers.
| Dimension | Q235B carbon steel | SS304 stainless | SS316 stainless |
|---|---|---|---|
| Best for | Dry industrial flooring, platforms, trench covers | Food, washdown and general chemical areas | Marine, docks, coastal and chloride exposure |
| Corrosion protection | Hot-dip galvanized to ASTM A123 / ISO 1461 | Inherent — no coating needed | Inherent — enhanced chloride resistance |
| Cost position | Economical workhorse | Mid stainless grade | Premium stainless grade |
| Mill test certificate | EN 10204 Type 3.1 | EN 10204 Type 3.1 | EN 10204 Type 3.1 |
| Typical service | Plants, warehouses, municipal | Breweries, food halls, clean process | Docks, offshore, coastal plants |
Not sure which material grade fits? Send your drawings — we will spec it inside the 24-hour quote.
FAQ
Frequently Asked Questions
What is the difference between Q235B and stainless steel grating?
Q235B is carbon steel — strong and economical, normally hot-dip galvanized for outdoor service. SS304 and SS316 are stainless: corrosion-resistant without coating, so they suit food, washdown, marine and chemical areas where carbon steel would rust.
Can you supply mill test certificates for the material grade?
Yes. Every heat enters production with its mill test certificate verified at goods-in, and every order ships with an MTC to EN 10204 Type 3.1, a factory inspection report and a Declaration of Conformity per ISO 17050.
What are your sample and production timelines?
Samples ship in 5–7 working days and mass production runs 15–25 working days after drawing confirmation, both including hot-dip galvanizing. Quote within 24 hours.
Free spec sheets
Get the Spec Guide
Read the guide, then order from the factory direct. Send the environment and the material grade you are considering — we reply within 24 hours with spec sheets and an itemized quote.
- Q235B / SS304 / SS316 spec sheets matched to your project
- MTC EN 10204 3.1 with every order
- Small trial orders welcome — samples in 5–7 days
Prefer to talk? WhatsApp us or sales@dtsteelladder.com
Request your spec sheet
Five fields — we do the rest.
Related pages
Related Guides & Product Pages
How to Choose Steel Grating
The step-by-step selection guide for any project.
View page →Stainless Steel Grating Specification
SS304 / SS316 spec guide with bar sizes and spans.
View page →What Is Bar Grating
The plain-language definition to start from.
View page →Q235 Steel Grating
The carbon steel workhorse in detail.
View page →Stainless Steel Grating
SS304 & SS316 panels for corrosive and sanitary use.
View page →Hot-Dip Galvanized Grating
Q235B panels protected with an ASTM A123 zinc coating.
View page →