AR400 · Nominal-Hardness Wear-Resistant Plate
AR400 Steel Plate Supplier
AR400 Steel Plate can be specified only when the exact designation, product form, thickness/size range, service conditions, supplementary tests, fabrication requirements, and material documentation are aligned. Do not present another grade as equivalent unless the governing requirements have been compared and verified.
Price on request · confirmed against the designation/edition, hardness-test basis and the mill certificate
Standards, grades & dimensions
Decision-grade evidence for the AR400 plate
Connect the designation, hardness band, dimensions, tolerances, service conditions, inspection and documentation to the buying decision. Every table states the applicability, buyer implication, evidence/source requirement and resulting RFQ field.
| Input | Typical basis (verify) | Buyer implication | Evidence / RFQ field |
|---|---|---|---|
| Designation | Wear / abrasion-resistant steel plate traded to a nominal AR400 hardness designation — declare the exact standard, edition and grade | Names the exact grade, hardness basis and edition; all chemistry, mechanical and test minimums follow from it | Exact designation + standard edition + grade |
| Hardness / wear category | Nominal ~400 Brinell (HBW) hardness class — verify against the declared hardness-test standard | Fixes the wear-resistance category for the abrasion service and drives the test and documentation requirement | Hardness category + hardness-test basis |
| Product form | Plate | Fixes applicability to the plate form and its thickness basis | Product form: plate |
| Supplementary requirements | Any supplementary, class or project requirement named in the RFQ | Governing extras (e.g. hardness test condition, impact or bend test) are explicit, never assumed | Supplementary requirement set |
Designation, edition, hardness band and any class or supplementary requirement must be named and verified — never assumed from the grade name alone.
| Dimension / tolerance | Typical basis (verify) | Buyer implication | Evidence / RFQ field |
|---|---|---|---|
| Thickness | Wear-plate range — declare exact | Sets mass, tolerance and face-hardening relevance for the AR400 plate | Nominal thickness + unit |
| Width / Length | Per declared blank or customer size | Determines the cut plan, packing and the piece count | Width × Length or plate standard size |
| Tolerance basis | Gauge / edge tolerance per declared standard and class | Confirms the plate meets the cut and fit intent | Tolerance basis + edition |
| Unit weight | From declared density × volume — verify against MTC | Confirms mass for transport and the quotation basis | Quantity in plates and tonnes |
Units and tolerance basis must be stated and verified with the mill / gauge record — computed from density, never assumed.
| Property | Typical basis (verify) | Buyer implication | Evidence / RFQ field |
|---|---|---|---|
| Hardness | Nominal ~400 Brinell (HBW) class per ISO 6506-1 test method — verify | Confirms the wear-resistance category for the abrasion service | Grade + hardness-test basis + test requirement |
| Tensile / strength response | Depends on grade, thickness, heat treatment, test method and delivery condition — verify | Confirms strength margin for the structural and wear service | Grade + test requirement + condition |
| Impact / bend behaviour | Class-design and supplementary requirement determine the impact or bend test condition and temperature — verify | Confirms certification requirements at the design service temperature | Impact / bend test condition + temperature |
| Weldability / formability | Grade chemistry and delivery condition; welding procedure per design | Drives the fabrication route and inspection plan | Welding procedure + chemistry requirement |
Hardness and mechanical values depend on grade, thickness, heat treatment, test method and the class/project requirement — carry each into the RFQ for verification against the mill certificate.
Technical resources
Quality, testing & documentation
Evidence gates for the AR400 decision
What the buyer requests, what it verifies, when it is required, and what remains quotation-dependent — the document matrix is matched to the designation, hardness-test basis and inspection/class route named in the RFQ.
- Hardness band and chemistry minimums are held against the declared AR400 specification and its edition — not assumed from a matching product name.
- The mill test certificate and the heat / lot record tie the plate shipped to that certificate — traceability is part of the specification.
- Dimensional, flatness, surface, edge, hardness, impact/bend and any class or third-party test checks are requested explicitly — never an unsupported certificate.
Document & inspection matrix
Product evidence
- Mill Test Certificate — chemistry and hardness/mechanical minimums against the declared AR400 specification
- Dimensional / gauge record against the declared plate basis
- Heat / lot traceability to the shipped consignment
Hardness & inspection records
- Brinell hardness-test basis (e.g. ISO 6506-1) and the recorded values against the certificate
- Dimensional, surface or edge inspection per the agreed route
- Any class, impact, bend or third-party verification where the design requires it
Destination documents
- Commercial invoice and packing list
- Origin / transport documents per the Incoterm
- Customs declaration inputs for the destination
Compliance Checker
AR400 Steel Plate compliance scope checker
Build a clean AR400 plate RFQ — every field below feeds the request the commercial coordinator receives. The checker returns Fit for technical review, Comparison needed, or Insufficient evidence, never equivalence from a grade name alone.
RFQ summary
Fit, alternatives & selection logic
Narrowing the AR400 specification
AR400 fits nominal-hardness wear / abrasion-resistant service. When it does not, the closest registered alternatives are compared on hardness band, chemistry, mechanical response, thickness/tolerance basis and weldability — never on the grade name alone.
Type and material
AR400 is a nominal-hardness wear / abrasion-resistant steel plate for abrasion service; confirm the exact designation, hardness-test basis and the design service against the governing specification before the grade is fixed.
Grade and standard
The AR400 designation fixes the nominal hardness category, chemistry and test minimums. The exact designation, edition and the hardness-test standard (e.g. ISO 6506-1 Brinell) must all be named.
Dimensions and tolerances
Thickness, width, length and the tolerance basis fix the plate and its unit weight. Keep the unit system coherent and cite the edition.
Surface, edge and processing
Mill finish, surface condition, any cutting or edge preparation, welding intent and the delivery condition are project decisions, confirmed against the governing standard before quotation.
Chemistry
What defines an AR400 wear plate
Composition is a purchasing input, not a slogan. The carbon level and alloy balance drive hardness, weldability, formability and fabrication behaviour — each must be stated against the declared designation and verified against the mill certificate.
AR400 is a nominal-hardness wear plate whose composition supports its hardness and abrasion response. The exact chemistry is verified against the mill certificate — never assumed from the designation alone, and never presented as a proven design value without the governing test record.
RFQ field: the chemistry and hardness-test requirement is written into the MTC / certificate request and verified against the plate actually shipped.
A grade whose carbon and alloying deliver a predictable hardness and weldability envelope changes what is asked of the MTC and the welding procedure. If the application needs a specific hardness band, hardness-test basis or heat-treatment response, the composition is the first field verified before the plate is accepted into fabrication.
RFQ field: the chemistry and hardness-test requirement is written into the MTC / certificate request and verified against the plate actually shipped.
Equivalents
Comparing AR400 on evidence, not a name
A registered alternative is comparable only when the governing requirements have been compared and verified. No absolute product-superiority claim is made — each difference is a decision the buyer and coordinator reconcile to the service.
Another wear / abrasion-resistant plate (for example a higher-hardness AR-type grade) is comparable only when its hardness band, chemistry, mechanical response, thickness/tolerance basis and weldability match the intended service. Every difference is verified against the mill certificate and the governing project specification.
Buyer implication: place this into the RFQ as an explicit comparison basis before any substitution is accepted.
Do not present a different grade as equivalent to AR400 from the nominal hardness or name alone. The grade/edition, chemistry, hardness-test basis, mechanical response and testing are the buyer's and the coordinator's to confirm against the service before any substitution is accepted.
Buyer implication: place this into the RFQ as an explicit comparison basis before any substitution is accepted.
MTC requirements
Mill Test Certificate & document evidence for AR400
The MTC ties the chemistry and hardness/mechanical minimums to the plate actually shipped, with heat / lot traceability. Every document is requested against the declared designation and inspection/class route — never an unsupported certificate.
The MTC ties the chemistry and hardness/mechanical minimums to the plate actually shipped, with heat / lot traceability. It is requested against the declared AR400 specification and hardness-test basis — never an unsupported certificate.
RFQ field: state the MTC, chemical and hardness/mechanical test record, hardness-test basis, impact/bend record, dimensional/gauge record and traceability in the RFQ so the document set matches the plate shipped.
Dimensional, flatness, surface, edge, hardness, impact/bend and any class or third-party test checks are requested explicitly, alongside the commercial, origin and transport documents for the destination. Every document is quotation-dependent and stated before acceptance.
RFQ field: state the MTC, chemical and hardness/mechanical test record, hardness-test basis, impact/bend record, dimensional/gauge record and traceability in the RFQ so the document set matches the plate shipped.
Advantages
How the AR400 decision gets safer
Five common failures trip up wear-plate buys. Each is answered on this page and in the RFQ.
Risk
Wrong-grade or hardness substitution
The RFQ forces a named AR400 designation, edition, hardness band and hardness-test basis before any value is shown, matching the wear / abrasion application.
Risk
Dimensional or tolerance ambiguity
Thickness, width, length and the tolerance basis are carried together under one stated unit system.
Risk
Undocumented hardness or testing
Inspection, hardness-test, impact/bend and test-certificate needs are explicit RFQ fields, requested against the declared basis before quotation.
Risk
Quotation gaps or hidden assumptions
Application, processing, destination, Incoterm and date are separate explicit fields, never buried in a price.
Risk
Unsupported stock or lead-time claims
Every stock, price, origin or delivery claim is either verified or left to the RFQ to confirm against the mill and destination process.
Journey
From an AR400 need to a documented consignment
Seven checkpoints carry the AR400 enquiry from a requirement to a confirmed, documented delivery — each with the responsible owner and the input the RFQ expects.
Requirement
Buyer
In: Designation, grade/edition, hardness band, hardness-test basis, product form, thickness, width, length, quantity and service conditions.
Out: AR400 basis stated; route and material identified.
No designation or hardness-test basis named.
Next: Name the designation/edition and hardness test.
Destination & importer
Buyer + commercial
In: Destination, port or delivery location, importer/consignee details.
Out: Destination and clearance owner explicit.
Importer not confirmed.
Next: Add importer/consignee inputs.
Documents & Incoterm
Buyer + commercial
In: MTC/hardness and invoice/origin/transport needs, Incoterm + named place.
Out: Document set and delivery terms stated.
Class/document assumptions unstated.
Next: Confirm document checklist.
Quotation
Commercial
In: Quantity, Incoterm, destination, date.
Out: Availability and pricing on request.
Unknown lead time.
Next: Receive confirmed offer.
Inspection & documents
Technical / QA
In: Dimensional, surface, flatness, hardness, impact/bend and mechanical-test checks.
Out: Thickness, width, length and hardness reconciled to the mill ticket and test record.
Missing gauge, hardness or test report.
Next: Approve document set.
Packing & shipping
Supplier / forwarder
In: Strapping, marking, Incoterm, port.
Out: Coordinated to the destination.
Document delay.
Next: Track to delivery location.
Delivery & follow-up
Commercial
In: Site handover, closed-out docs.
Out: Handed to site with documents.
Open claims.
Next: Close out.
FAQ
AR400 Steel Plate questions
Straight answers to the questions procurement and QA teams ask most.
Which exact standard, grade, and supplementary requirements should be written into an RFQ for AR400 Steel Plate?
Which dimensions, tolerances, edge/processing conditions, and quantity details must be confirmed for AR400 Steel Plate?
Which inspection, test certificate, traceability, and document requirements should be stated before quotation?
When is a registered alternative technically comparable, and which differences must be verified before substitution?
Which destination, Incoterm, packing, and delivery-date inputs materially change the commercial offer?
Qualified RFQ
Request a quote for AR400 Steel Plate
Send standard, grade, size, quantity, destination and required delivery date. Review specifications, availability and request an RFQ. Price on request — availability and lead time confirmed with your quotation.
Response within one business day · Price on request
Applications
AR400 plate, mapped to service paths
Wear-plate needs are classified by the operating service. The card set below is the taxonomy path, not the final decision — the exact grade, hardness band, testing and documentation are the buyer's and the coordinator's to reconcile to the project.
Mining wear
Abrasion and wear service for mining equipment: reconcile hardness band, chemistry, hardness-test basis and documentation to the governing class and project specification.
Explore Mining wearMining industry
Operating conditions and failure risks in mining change the grade, hardness-test requirement, fabrication route and documentation choices for the wear plate.
Explore Mining industryBoiler & pressure
Temperature and pressure service: confirm the standard, grade, chemistry and testing discipline before the plate basis is fixed.
Explore Boiler & pressureGCC markets
Who we supply across the GCC
AR400 plate is delivered into contractor, fabricator and trader demand across the Gulf. Each market page is the product x country anchor for your wear-plate import.
United Arab Emirates
Destination and import documentation.
Carry the AR400 plate specification, destination emirate and importer inputs into the RFQ so the quotation and the wear-plate document set match the UAE requirement for the declared hardness basis.
United Arab Emirates
Saudi Arabia
Project specification and import documentation.
Confirm the AR400 designation, standard/edition, dimensions, hardness-test basis, quantity and delivery window so the quotation and logistics stay aligned to the order and the governing project specification.
Saudi Arabia
Qatar
Specification and delivery inputs.
State the AR400 standard, grade, hardness-test basis, thickness, width, length, quantity, documents and delivery base so the Qatar quotation is fixed on a verified dimensional and testing basis.
Qatar
Oman
Port-oriented supply for industrial projects.
Oman wear-plate requirements are typically supplied through port destinations, harmonising the AR400 specification with the project's wear-test and fabrication requirements.
Oman
Kuwait
Contractor procurement and fabrication hand-off.
Link plate selection and any cutting to the fabrication and inspection needs, with shipment agreed against the destination and delivery window.
Kuwait
Bahrain
Industrial supply and re-export coordination.
Coordinate material and testing documentation to the delivery requirement so the AR400 plate and its document set stay aligned.
BahrainLogistics & Incoterm
Shipping the AR400 plate to the destination
Packing, route and Incoterm are matched to the named destination and stated on the quotation — never hidden in a price.
Packing
Plates stacked, strapped and marked by size, grade, heat and lot, matched to the declared route and destination. Confirm packing in the RFQ.
Delivery route
Name the destination, port or delivery location. Delivery terms are matched to the route and stated on the quotation.
Incoterm & named place
State the Incoterm and named place so packing, transport and document obligations are explicit and auditable for the AR400 plate import.
References
Related taxonomy and technical paths
Watertight paths from the AR400 grade page to the registered plate parents, keeping the wear-material basis consistent across the specification.
All steel plate grades
Compare the AR400 wear-plate grade against the registered steel plate grade path to hold the hardness and chemistry basis consistent across the specification.
Explore All steel plate gradesWear-resistant plate type
The registered abrasion-resistant plate type path where the wear material, compliance evidence and purchase description are reconciled.
Explore Wear-resistant plate typeRegistered plate routes
Parent and cluster paths that keep the plate specification intact while you compare the registered product forms.
Expert insight
Reading the AR400 wear-plate hardness decision
As a steel trading house we do not guarantee that a listed standard applies to every case — the AR400 designation, edition, hardness band and hardness-test basis are reconciled to the application before an order. The working frame is the ISO Brinell hardness test method as a procurement verification aid.
What the source governs
ISO 6506-1:2014 is a test method for the Brinell hardness of metallic materials — it defines how a Brinell hardness value is measured, not the grade designation itself. For AR400 plate, treat Brinell hardness as one controlled verification input rather than a complete grade definition: require the producer data, the hardness-test basis, weld/fabrication guidance and MTC evidence together. Each value is verified against the plate actually shipped.
Never assume the edition, hardness band or class/project supplementary requirements apply from a matching name alone — the test-basis-plus-specification inputs are the buyer's and the coordinator's to confirm against the application. The source is a procurement verification aid, not proof of Noor Deira Steel inventory, certification, origin or commercial availability.
Expert perspective on AR400 plate procurement
- Treat hardness as one input, not the full grade. Confirm the designation/edition, hardness band, hardness-test basis and any supplementary requirement before the order.
- Bring the chemistry + hardness evidence. Hold the mill ticket, gauge, hardness and mechanical test record against the plate and its heat / lot.
- Plan the inspection and class route. Dimensional, flatness, surface, edge, hardness, impact/bend and any class checks are explicit — documentation follows the plate, not the other way round.
- Keep the route explicit. Destination, Incoterm and packing are decisions stated on the quotation, not assumptions.