Editorial Technical Reference

Powder-Coated Steel Sheet

This page explains how Powder-Coated Steel Sheet is classified within Metal Furniture. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Steel sheet with electrostatic powder coating for durable metal furniture surfaces.

View Full Specifications Explore Manufacturing Sources
Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Powder-Coated Steel Sheet

Definition
Powder-coated steel sheet is a semi-finished industrial material consisting of a cold-rolled or galvanized steel substrate with a thermoset polymer powder coating applied through electrostatic deposition and cured under heat. This material serves as the primary surface component in B2B metal furniture manufacturing, providing both structural integrity and finished appearance in a single material. It enables furniture manufacturers to streamline production by eliminating separate painting processes while ensuring consistent quality and durability. The material is supplied in coil or sheet form to industrial fabricators who cut, form, and assemble it into office and industrial furniture components. Typical parameters include sheet thickness from 0.5 to 3.0 mm, coating hardness of 2H to 3H, impact resistance of 50 to 100 J, salt spray resistance of 500 to 1000 hours, gloss level of 30 to 70 GU, bend radius of 1 to 3T, coating thickness of 60 to 120 μm, tensile strength of 270 to 410 MPa, yield strength of 140 to 280 MPa, elongation of 20 to 40%, operating temperature of -20 to 80 °C, and surface finish of Ra 0.8 to 1.6 μm. These values are reference ranges and must be verified for the specific product and application. The material complies with relevant ISO and ASTM standards for testing and verification, but certification must be confirmed with the supplier. This directory entry is for informational purposes only and does not imply endorsement or certification.
Working Principle
Electrostatic attraction deposits dry polymer powder onto a grounded steel substrate. The powder particles are charged and adhere to the surface. The coated substrate is then heated in a curing oven, melting the powder and causing it to flow and cross-link into a continuous, protective film. This film provides corrosion resistance, durability, and an even finish.
Common Materials
Cold-rolled steel substrate, Thermoset polymer powder (epoxy, polyester, or hybrid)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Sheet ThicknessRequired0.5–3.0 mmTotal thickness including substrate and coatingISO 6362
Coating HardnessRequired2H–3 HPencil hardness of cured coating surfaceASTM D3363
Impact ResistanceRequired50–100 JEnergy absorption before coating failureASTM D2794
Salt Spray ResistanceRequired500–1000 hoursHours to first red rust in salt fog testASTM B117
Gloss Level30–70 GUSurface reflectance at 60-degree angleISO 2813
Bend Radius1–3 TMinimum bend radius without coating crackingISO 17132
Coating Thickness60–120 μmAffects durability and corrosion resistanceISO 2360
Tensile Strength270–410 MPaFor structural applicationsISO 6892-1
Yield Strength140–280 MPaEnsures formabilityISO 6892-1
Elongation20–40 %Indicates ductilityISO 6892-1
Operating Temperature-20–80 °CCoating may degrade beyond range
Surface FinishRa 0.8–1.6 μmSmoothness affects appearance and cleanabilityISO 4287

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Steel Substrate Part
    Provides structural strength and formability
    Material: Cold-rolled or galvanized steel
  • Conversion Coating Part
    Enhances adhesion and corrosion resistance
    Material: Chromate or phosphate chemical layer
  • Polymer Coating Part
    Provides decorative finish and surface protection
    Material: Thermoset powder (epoxy, polyester, hybrid)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Powder-Coated Steel Sheet.

Electrostatic coated steel Pre-finished steel panel Thermoset coated metal sheet

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 10 bar (depending on substrate thickness)
other spec: UV resistance: 1000+ hours QUV testing, impact resistance: 80 in-lbs (ASTM D2794), coating thickness: 60-120 microns
temperature: -40°C to 120°C continuous, up to 200°C intermittent
Media Compatibility
✓ Indoor office environments ✓ Light industrial settings (warehouses, workshops) ✓ Commercial furniture in dry to moderately humid conditions
Unsuitable: Continuous outdoor marine/coastal environments with salt spray exposure
Sizing Data Required
  • Required sheet dimensions (length × width × thickness)
  • Expected mechanical load/weight capacity
  • Environmental exposure classification (indoor/outdoor, chemical contact risk)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Coating delamination
Cause: Poor surface preparation (e.g., inadequate cleaning, oil residue, or insufficient phosphate coating) leading to poor adhesion between the powder coating and steel substrate, often exacerbated by moisture ingress or thermal cycling.
Corrosion undercutting
Cause: Mechanical damage (e.g., scratches, impacts) or edge exposure compromising the coating integrity, allowing localized corrosion (rust) to initiate and propagate beneath the coating, accelerated by environmental factors like humidity, salt, or chemicals.
Maintenance Indicators
  • Visible blistering, bubbling, or peeling of the powder coating, indicating moisture intrusion or adhesion failure.
  • Rust spots, stains, or reddish-brown discoloration on or around the coated surface, signaling active corrosion and coating breakdown.
Engineering Tips
  • Ensure rigorous surface preparation before coating application: implement thorough cleaning (degreasing, abrasive blasting) and apply appropriate pretreatment (e.g., zinc phosphate) to enhance adhesion and corrosion resistance.
  • Design and install with protection against mechanical damage: use edge rounding, avoid sharp corners, apply additional protective layers (e.g., sealants) at joints, and implement regular inspections for scratches or impacts in high-wear areas.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 12944: Corrosion protection of steel structures by protective paint systems ASTM A924/A924M: General requirements for steel sheet, metallic-coated by the hot-dip process EN 10169: Continuously organic coated (coil coated) steel flat products

Quoted from the published standard.

Manufacturing Precision
  • Thickness: +/-0.1mm
  • Coating thickness: +/-5μm
Quality Inspection
  • Adhesion test (cross-cut test per ISO 2409)
  • Salt spray test (corrosion resistance per ASTM B117)

Manufacturers of Powder-Coated Steel Sheet

Manufacturer profiles associated with Powder-Coated Steel Sheet.

Sourcing Powder-Coated Steel Sheet from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is powder-coated steel sheet used for?

It is used as a surface material in the manufacturing of metal furniture, such as office desks, chairs, and industrial shelving. It provides a durable, finished surface without additional painting.

What are the key parameters to verify?

Key parameters include sheet thickness, coating hardness, impact resistance, salt spray resistance, gloss level, bend radius, coating thickness, tensile strength, yield strength, elongation, operating temperature, and surface finish. These values should be confirmed with the supplier for the specific product.

How is the coating applied?

The coating is applied via electrostatic spray deposition, where dry polymer powder is charged and sprayed onto a grounded steel substrate. The part is then cured in an oven to melt and cross-link the powder into a film.

What standards apply to this material?

Relevant standards include ISO 6362 for sheet thickness, ASTM D3363 for hardness, ASTM D2794 for impact resistance, ASTM B117 for salt spray, ISO 2813 for gloss, ISO 17132 for bend radius, ISO 2360 for coating thickness, ISO 6892-1 for tensile and yield strength, and ISO 4287 for surface finish. Compliance should be verified with the supplier.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
Buyer enquiry

Request manufacturing insight for Powder-Coated Steel Sheet

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.

Need to Manufacture Powder-Coated Steel Sheet?

Compare manufacturer profiles with relevant product and process capability.

Create Manufacturer Profile Contact Us
Previous Product
Cold-Rolled Steel Sheet
Next Product
Pre-Painted Galvanized Steel Coil
Get QuotesChat