Shandong Tianyu Metal Products Co., Ltd. · Liaocheng, Shandong, China [email protected] +86 199 6352 2611
Two large flat steel plates stacked on a plain background
Two large flat steel plates stacked on a plain backgroundSpec table listing composition, yield and tensile strength by grade
Mild Steel Sheet

Mild Steel Plate and Sheet for Structural Fabrication

Low carbon plate that forms welds and drills without a new procedure

Mild steel plate is low carbon flat product with good plasticity and toughness, rolled to order in thickness from 0 to 100mm. Workshops specify it when a part has to be formed welded and drilled quickly rather than carry a high design stress, which covers platform plate structural members and general fabrication work. Buying it already decoiled cut and punched removes the queue in front of your own shear and press brake. Grades cover S235 S235JR S335 SS400 ST37 ST52 E250 E350 SM400 and SM490 so an order can follow the designation printed on the drawing instead of a local equivalent.

  • Product Name — Mild steel plate carbon steel plate or sheet
  • Also Known As — Mild steel sheet carbon steel sheet
  • Place of Origin — China
  • Size — Customized size
  • Thickness — 0-100mm
Why It Is Specified

Key Benefits of Mild Steel Plate

Formability That Survives Tight Work

Good plasticity and toughness let the plate take rolling folding and dishing without tearing. Parts that would split in a stiffer plate come out of the tooling whole.

No New Welding Procedure Needed

The low carbon content keeps the plate easy to weld. Existing mild steel procedures and consumables carry straight over so nothing is held up waiting on qualification.

Decoiled and Cut Before It Ships

Decoiling cutting and punching are done here, so the press brake and shear in your own shop stay free for the work only you can do.

Drawing Designations Matched Directly

European Japanese German and Indian mild steel designations sit on one grade list, so a drawing calling ST52 does not have to be reissued to a local equivalent.

Painted Surface for Outdoor Storage

Plate can be shipped painted rather than natural, which matters when material sits on a site laydown area before it reaches the fabrication bay.

Certificate Filed With the Delivery

The mill test certificate is issued for the ordered grade so the plate can be accepted into a structural inspection record without a follow up request.

Problems It Solves

What This Material Removes From Your Process

Shop Capacity Lost to Cutting and Punching

Time spent shearing and drilling raw plate is time the assembly bay is idle. Parts arrive decoiled cut and punched so the shop starts at the fit up stage.

Drawings Reissued to Chase a Local Grade

Engineering time goes into substituting a designation the local market does not carry. A grade list that spans European Japanese German and Indian mild steel designations keeps the drawing as issued.

Sheet Splitting at the Fold

Parts that crack on the brake get scrapped and rerun. Low carbon plate with good plasticity and toughness folds without splitting at the bend line.

Rust Appearing Before Fabrication Starts

Bare plate stored outdoors on a site has to be cleaned before welding. Painted surface delivery keeps the material usable when it waits.

Mixed Thickness Orders Split Across Suppliers

Thickness from 0 to 100mm comes from one supply so a mixed package ships in one container instead of arriving piecemeal.

Application Scenarios

Where It Is Used

Road Repair Platform Plate

Heavy plate laid over open trenches and excavations to carry traffic while repairs are underway.

Building Support Members

Plate that adds strength and support to building frames as base plates cleats and stiffeners.

Bridge Deck and Member Work

Flat product cut for bridge members and secondary steelwork on highway and footbridge contracts.

General Fabrication and Job Shop Parts

Frames covers tanks and mounting plates produced from cut sheet in mixed batch workshops.

Formed Sheet Metal Components

Folded trays enclosures and guards where the sheet has to bend cleanly at the fold line.

Distributor and Stockist Supply

Standard grades held in thickness ranges for regional resale to fabrication shops.

Who It Is For

Buyers Who Specify This Product

  • Fabrication shop owners buying decoiled cut sheet to keep the shear and brake free for assembly work
  • Site engineers ordering platform plate for road and utility trench covers
  • Structural steelwork detailers matching a drawing grade such as ST52 or SM490 to real material
  • Sheet metal workshops sourcing plate that folds without cracking at the bend line
  • Steel stockists building a range across S235JR SS400 and ST37 in common thicknesses
  • Maintenance departments buying plate for repair patches wear covers and skid frames
Technical Data

Specifications and Technical Features

Values below come from the product data published by Shandong Tianyu Metal Products. Confirm the exact grade and size against your order.

Mild Steel Plate specifications
Product NameMild steel plate carbon steel plate or sheet
Also Known AsMild steel sheet carbon steel sheet
Place of OriginChina
SizeCustomized size
Thickness0-100mm
TechniqueHot rolled and cold rolled
GradeS235 S235JR S335 SS400 ST37 ST52 E250 E350 SM400 SM490
ApplicationBuilding bridge general fabrication works
Processing ServiceBending welding decoiling cutting punching
SurfaceNatural or painted
CertificateMill test certificate
SampleAvailable

Technical Features

  • Thickness 0-100mm in customized sizes
  • Hot rolled and cold rolled technique
  • Grades S235 S235JR S335 SS400 ST37 ST52 E250 E350 SM400 and SM490
  • Good plasticity and toughness in low carbon condition
  • Low bending strength placing it in the easily bendable category
  • Surface natural or painted
  • Bending welding decoiling cutting and punching available
  • Mill test certificate with the ordered grade

Materials

  • Low carbon mild steel supplied as plate and sheet
  • European structural designations S235 S235JR and S335
  • Japanese designations SS400 SM400 and SM490
  • German designations ST37 and ST52 with Indian grades E250 and E350

Certification

  • Mill test certificate supplied with each shipment
Manufacturing

How It Is Made and Processed

  1. Hot rolling or cold rolling to ordered thickness

  2. Decoiling and levelling of coil supplied material

  3. Cutting to the ordered sheet or plate size

  4. Punching and bending to the customer drawing

  5. Welding of assemblies where requested

  6. Natural or painted surface finishing

  7. Marking bundling and export packing

Quality Control

Checks Before It Ships

  • Ordered grade verified against the heat before release
  • Thickness measured across the sheet within the 0-100mm range
  • Flatness checked after decoiling and levelling
  • Punched hole positions compared to the supplied drawing
  • Painted surface checked for coverage before packing
  • Packing list reconciled with the cutting list at loading
Customization

What We Can Change on Your Order

  • Sheets cut to your finished part size rather than standard plate size
  • Hole punching to your hole pattern drawing
  • Bending to the folded profile before shipment
  • Grade selected from the European Japanese German or Indian designation you use
  • Painted or natural surface
  • Welded sub assemblies supplied in place of loose plate
Comparison

Mild Steel Plate Against the Alternatives

Wear resistant plateMild steel plate is the right choice where forming and welding matter more than abrasion life, and it costs less for structure that does not see sliding wear.
Galvanized sheetMild steel plate is welded and painted after fabrication rather than carrying a coating that has to be repaired at every weld.
Hot rolled coil bought in full widthPlate and decoiled sheet arrive at your part size so no coil handling gear or decoiling step is needed in your shop.
Structural angle and channelPlate lets a fabricator cut any outline and hole pattern instead of working within the standard section sizes a mill rolls.
Use Guide

Specifying Handling and Welding Notes

  • Quote the grade designation exactly as your drawing prints it so the right material is matched at order entry
  • Send the hole pattern with the cutting list if you want plate delivered punched
  • Allow a generous inside radius on thicker plate and fold across the rolling direction where the part permits
  • Specify painted surface when material will be stored outside before fabrication
  • Clean paint back from weld preparations before welding to avoid porosity
  • Confirm the mill test certificate requirement when the order is placed rather than after shipment
Questions Buyers Ask

Mild Steel Plate FAQ

What is the difference between mild steel plate and carbon steel plate?

They are the same product under two names. Mild steel plate is the common name for low carbon plate and carbon steel plate is the technical one.

How thick can the plate go?

Thickness runs from 0 to 100mm. Thin material can be supplied decoiled and levelled and heavier thicknesses are supplied as cut plate.

Our drawing says ST52. Can you supply that designation?

Yes. ST37 and ST52 are on the grade list along with S235 S235JR S335 SS400 SM400 SM490 E250 and E350, so the drawing does not need reissuing.

Can you punch the holes for us?

Yes. Punching is part of the processing service along with bending welding decoiling and cutting. Send the hole pattern drawing with your order.

How is the plate packed for export?

Plate is marked bundled and packed for container loading with edge protection. Cut sizes are reconciled against the cutting list at loading.

Do you issue a mill test certificate?

Yes. It is issued for the ordered grade and ships with the material so the plate can be accepted into a structural inspection record.

Can we order a sample before a full order?

Samples are available. Tell us the grade thickness and surface you want to evaluate and we will confirm what can be released.

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