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Marketplace/Ferrous/Plate and Structural
Plate and Structural
Ferrous

Plate and Structural

Grade: 204High Tier

Steel plate over 3/16 inch, structural steel beams and shapes

Market Price EstimateUpdated Daily
$435/ MT
+25 (6.1%)vs yesterday
Verified specifications & market data

Chemical Composition

Elemental breakdown by percentage weight.

Standard composition limits
Values represent maximum allowed percentage unless otherwise noted.

Physical Properties

Material form, density, and contamination specifications.

Heavy structural steel scrap from building demolition, bridge dismantling, and industrial equipment; premium plate and structural form with superior thickness and integrity

Acceptable Inclusions
  • Light surface rust <5% (oxidation from exposure)
  • Paint coating <2% by weight (structural paint, rust protection)
  • Light grease/oil <1% (lubricant from mechanical work)
  • Mill scale (light oxide layer from rolling)
Prohibited Materials
  • Copper or brass components (non-ferrous limit)
  • Stainless steel (ferrous contamination; segregation)
  • Mixed non-ferrous metals >0.5% each
  • Radioactive materials
  • PCB or hazardous electronics
  • Asbestos materials
  • Mercury components
  • Heavy oil/hydraulic fluid >1%

Quality Assurance

Testing protocols, sampling methods, and acceptance criteria.

Sampling Protocol
frequencyRandom selection from different parts of load; account for piece size variation
maximumQuantity30 samples per truckload
minimumQuantity1–1.5 tonnes or 10–15 samples
notesLarge structural pieces require robust sampling strategy
percentage5–7% of lot
Acceptance Limits
all Criteria Must Passcriteria must be met; structural applications zero-tolerance
carbon ContentC <0.25%
copper LimitCu <0.10%
iron ContentFe ≥98.0%
non Ferrous Total<1.5%
phosphorusP <0.04%
sulfurS <0.03%
thickness Minimum>3/16 inch on all pieces
visual Contaminants<1% prohibited items visible
Weight Tolerance
notesLarge piece weight variation typical; scale verification important
variance±3% acceptable from purchase order weight

Required Test Methods

Visual Inspection

Method 1
Purpose
  • Detect non-ferrous metals, stainless steel contamination, hazardous materials
Acceptance Criteria
  • Pass: ≤1% prohibited items visible
  • no stainless detected
  • no hazmat labels
Procedure
  • 100% visual scan of samples
  • inspect surfaces and edges for contamination

XRF Spectrometry

Method 2
Purpose
  • Verify Fe ≥98%, Cu <0.10%, non-ferrous <1.5%, carbon <0.25%
Acceptance Criteria
  • Pass: Fe ≥98%, Cu <0.10%, non-ferrous <1.5%, carbon <0.25%, P <0.04%, S <0.03%

Combustion Analysis

Method 3
Purpose
  • Precise carbon and sulfur measurement (critical for structural properties)
Acceptance Criteria
  • Pass: Carbon <0.25%, sulfur <0.03%
Procedure
  • Test on samples if composition near specification boundaries

Magnetic Test

Method 4
Purpose
  • Confirm ferrous material
  • detect stainless steel contamination
Acceptance Criteria
  • Pass: All samples respond strongly to magnet
  • no dead zones
Procedure
  • Hand magnet test on representative samples

Dimensional Verification

Method 5
Purpose
  • Verify minimum 3/16 inch thickness (defines plate grade)
Acceptance Criteria
  • Pass: All pieces measured >3/16 inch (4.76mm)
  • no thin gauge pieces
Procedure
  • Spot-check thickness with caliper on representative samples
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