AR600 Steel Plate

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AR600 Steel Plate

Product Description

AR600 steel plate is a high-hardness, quenched-and-tempered abrasion-resistant (AR) steel intended for the most severe wear environments. Typical AR600 products deliver Brinell hardness in the ~570–650 HBW range, yield strengths in the 1,200–1,650 MPa neighborhood and very high tensile strength — giving substantially longer service life in crushers, liners, buckets, chutes and ballistic/armor applications compared with AR500. The trade-off is lower formability, higher cost, and greater care required for welding and fabrication; when lifetime wear or reduced section thickness matters, AR600 is usually the correct choice.

What is AR600 steel plate?

AR600 is a commercial abrasion-resistant steel grade where the numeric suffix (600) refers to the target Brinell hardness level (approximately 600 HBW). AR600 plates are produced by adjusted chemistry plus quenching and tempering to produce a hardened, wear-resistant surface combined with through-thickness toughness suitable for extreme sliding and gouging wear. These plates are available from commercial mills under different trade names (TruWEAR, Hardox® 600, NM600, XAR600, etc.) and in thicknesses that satisfy heavy equipment liners and some ballistic applications.

Why choose AR600 steel?

When the service failure mode is abrasion (sliding, impact + abrasive particles), higher hardness lowers volumetric wear dramatically. AR600 enables either much longer lifetime for the same thickness or similar lifetime using a thinner, lighter component. That makes it attractive for crushers, truck/dump liners, bucket teeth and certain armor plates. The higher hardness also allows thinner parts to meet wear life targets, which can save weight and maintenance downtime despite a higher purchase cost.

Typical chemical composition (representative mill / product)

Note: AR600 chemistry varies by mill and trade name; the table below summarizes typical maximums/targets reported by several mills. Always request the mill test report (MTR) with orders.

Element Typical / Max (wt%) (representative)
C (Carbon) 0.40 – 0.47 (max ~0.47)
Mn (Manganese) 0.8 – 1.5
Si (Silicon) ≤ 0.45
P (Phosphorus) ≤ 0.015
S (Sulfur) ≤ 0.015
Cr (Chromium) 0.2 – 0.7
Mo (Molybdenum) ≤ 0.5
Ni (Nickel) ≤ 0.25 (mill dependent)
Cu (Copper) ≤ 0.25 (mill dependent)
Typical Carbon Equivalent (CEV) ~0.7 – 0.95 (mill/chemistry dependent)

(Source comparison: mill spec sheets such as TruWEAR AR600 and supplier datasheets.)

Mechanical & physical properties (representative / typical)

Measured values vary with thickness, heat treatment and manufacturer. Use the mill test report for acceptance testing.

Property Typical value (representative AR600 product)
Brinell Hardness (HBW) 570 – 650 HBW (typical aim ~600 HBW)
Yield Strength (0.2% offset) ~1,200 – 1,650 MPa (220 ksi reported for some TruWEAR AR600)
Tensile Strength ~1,600 – 1,820 MPa (reported ranges depend on product)
Charpy Impact (–40 °F / –40 °C) Variable; some grades specify 18–30 ft·lb (20–40 J) longitudinally (thickness dependent)
Density ~7.85 g/cm³ (standard steel density)
Formability Low — limited bending without crack risk; heavier mills may specify bend radii
Weldability Possible with qualified procedures (preheat, low hydrogen consumables, controlled interpass temps) but higher CE requires care

Key mill properties above are typical for commercial AR600 variants; mills publish full property tables per thickness — always request the MTR.

AR600 steel plate specification

Feature Typical range / comment
Thickness commonly 6 mm (≈1/4") up to 65 mm (Hardox datasheets list up to ~65 mm; many AR600 product lines offer 6–60 mm).
Width typical up to 2000–2200 mm (mills vary)
Length commonly up to 6,000–14,600 mm depending on mill (brand dependent).
Surface finish mill scale; some supply ground/shot-blasted; coatings optional
Tolerances similar to heavy plate tolerances (special flatness and thickness tolerances often agreed at order)
Test methods Brinell hardness per ASTM E10; mechanical tests per mill practice; MTR included with shipment.

What is AR600 plate equivalent to?

Commercial equivalents/brand names frequently referenced in procurement:

  • Hardox® 600 (SSAB) — well-known branded AR600 product with specified hardness and toughness.

  • NM600 / EH600 / XAR600 — regional mill names used in Asia/Japan/Europe; mechanical targets similar to AR600.

  • TruWEAR AR600 / Tensalloy AR600 — trade names used by some US/European producers; verify MTR for exact numbers.

Procurement note: these are approximate equivalences; hardness, toughness and guaranteed properties can differ. Always compare MTR numbers (HBW, yield, tensile, Charpy) rather than relying on name alone.

Typical applications / where AR600 is used

  • Crusher liners, cone liners, mantles and jaw plates (mining/aggregate)

  • Truck/dump liners, hoppers, chutes, and feed troughs exposed to heavy sliding abrasion

  • Wear liners in shredders, screen decks, and conveyor components

  • Ballistic/armor cores and high-velocity impact components (specialized, coated/assembled plates)

  • Components where weight reduction via thickness optimization is critical — thinner AR600 can match life of thicker, softer plate.

Fabrication, welding and practical guidance

  • Cutting: laser, plasma or oxy-fuel cutting works; expect harder arc wear on consumables and slower processes on thicker plate. Milling and machining require carbide tooling and slower feeds.

  • Welding: higher carbon/CE means preheat and controlled interpass temperature recommended; use low-hydrogen electrodes; post-weld heat treatment (PWHT) may be necessary in critical service. Test welds and follow qualified WPS.

  • Forming: limited bending — check mill bend radius tables. Many AR600 plates cannot be cold-formed to tight radii without cracking; hot forming or specialized press brakes with large-radius dies may be required.

  • Handling: harder steels are more brittle—avoid drop impacts on thin edges; store flat, avoid scratches in critical service areas.

Disadvantages / limitations of AR600

  • Lower ductility and formability than lower-hardness AR grades — increased cracking risk in forming.

  • Welding complexity: higher carbon equivalents can cause HAZ cracking without proper preheat and procedures.

  • Cost: mill price is higher than AR500/structural plate; sometimes total installed cost can still be lower due to life extension, but upfront spend is higher.

  • Potential for brittle failure: in some high-impact cyclic conditions, very hard steels need correct toughness specs to avoid catastrophic cracking.

AR500 vs AR600 comparison

Attribute AR500 AR600
Typical Hardness ~460–540 HBW ~570–650 HBW
Wear resistance Very good Higher (best among common AR grades)
Formability & weldability Better than AR600 More difficult; needs stricter WPS
Typical use cases Targets, moderate impact liners, some armor panels Severe sliding abrasion, high-velocity ballistic cores, very thin but long-life liners
Cost Lower (generally) Higher (per tonne / per plate)

Decision rule: choose AR600 when the wear problem demands the absolute top hardness and life, and when fabrication can be planned for the grade; otherwise AR500 often gives a better balance of cost, toughness and ease of fabrication.

AR600 Plate Sizes & weight

Steel weight (useful formula):
Weight (kg) = area (m²) × thickness (m) × density (7.85 t/m³ or 7,850 kg/m³). Typical guidance resources use 7.85 kg/dm³ (7,850 kg/m³) for steel density.

Example quick chart (metric):

Thickness (mm) 1 m² weight (kg)
6 mm 47.1 kg
10 mm 78.5 kg
12 mm 94.2 kg
20 mm 157.0 kg
25 mm 196.3 kg
30 mm 235.5 kg
(Calc: 7.85 × thickness(mm)/1000 × 1 m².)

If you buy a standard 2000 × 6000 mm plate (2 m × 6 m = 12 m²), multiply the 1 m² weight by 12 to get plate mass.

AR600 Plate Price 2025( USA, Europe, China)

Important: AR600 pricing depends strongly on thickness, mill/brand (branded Hardox or generic AR600), quantity, delivery terms (FOB, CIF), market steel base price, and coating/processing. The ranges below are indicative market observations from 2025 supplier listings and market trackers — use them for budgeting and always request firm mill quotes.

  • China (FOB / ex-works, 2025 indicative): many Chinese AR600 suppliers list approximately US$450–1,200 / metric ton depending on finish and quantity. Some trade listings show very low MOQ prices near US$499/ton, while specialized NM600/Hardox equivalents are more commonly quoted in the US$1,100–1,300/ton range FOB Shanghai.

  • Europe (EXW / domestic plate market): European market indices for high-hardness branded plate (Hardox® and equivalents) are higher than commodity structural plate. Fastmarkets shows general domestic plate assessment (8–40 mm) in southern Europe in mid-2025 near €630–650/ton for commodity plate, but AR600 / branded Hardox will typically carry a sizeable premium above commodity structural plate — expect €900–2,200/ton for branded AR600 depending on thickness and brand. Use branded quotes for procurement.

  • USA (domestic distributor / CWT / plate products): US pricing conventions use CWT (hundredweight) and plate suppliers adjust for AR grades. Online retailer and market commentary show CWT-based calculations and plate surcharges; a useful budgeting rule is that AR600 often sells at a material premium over structural plate — US distributor and producer pricing for finished body-armor plates may show retail unit prices (armor plate kits) but per-ton mill price depends on brand. A conservative budgeting band for AR600 material in the US in 2025 is US$800–2,500/ton, with spot retail prices of finished small plates (body armor) sold per piece much higher due to value-add.

Why ranges are wide: thickness, branded vs generic, mill processing, inclusion of heat-treat control, testing (MTR), freight and local duties. For an accurate bid: provide thickness, length/width, quantity (MT), required hardness range and test certificates, delivery INCOTERMS and destination port/warehouse.

Frequently Asked Questions

  1. What hardness should I expect from AR600?
    Typical Brinell hardness is ~570–650 HBW (aim ~600 HBW). Verify with the mill’s MTR.

  2. Is AR600 weldable?
    Yes, but welding requires qualified WPS: preheat, low-hydrogen consumables and controlled interpass temps. PWHT may be required for critical parts.

  3. Can I bend AR600 plate?
    Limited cold bending; use large bend radii or specialist forming. Check mill bend tables.

  4. Is Hardox 600 the same as AR600?
    Hardox 600 is SSAB’s branded product with similar nominal hardness and toughness; it’s often treated as an equivalent but compare MTRs before acceptance.

  5. What are common thicknesses for AR600?
    Commercial availability often ranges from ~6 mm up to ~60–65 mm depending on mill.

  6. How is hardness measured?
    Brinell hardness per ASTM E10 is the common acceptance method for AR plates.

  7. Does AR600 rust?
    AR600 is carbon alloy steel — it will corrode if unprotected. Coatings or paints are often used for long outdoor life. Surface condition does not change Brinell hardness significantly but corrosion reduces lifetime in service.

  8. What industries use AR600 the most?
    Mining, aggregate, quarrying, cement, recycling, heavy earthmoving, and specialized armor/defence uses.

  9. Can AR600 be used for ballistic armor?
    Some AR600 plates are used in ballistic cores (layered with coatings/encapsulation); ballistic performance depends on exact hardness, thickness, and backing. Follow regulations for certified armor.

  10. How do I specify an order to ensure I get true AR600?
    Specify branded grade (if desired), exact hardness range (HBW), thickness, dimensional tolerances, required Charpy toughness (if needed), and request mill test reports (MTRs) and heat treatment statement with each shipment. Include inspection and acceptance criteria in the PO.

How MWalloys supplies AR600 — factory advantage, logistics & why choose us

At MWalloys we source AR600 from vetted mills and keep selected thicknesses in stock for immediate dispatch. Our value proposition for global buyers:

  • Factory price — direct mill relationships allow us to offer highly competitive EXW/FOB pricing (we emphasize “factory outbound” pricing).

  • Fast delivery — stock items ship from nearest Chinese warehouse within 7–21 days; custom orders ship per agreed mill lead times.

  • Quality assurance — every load leaves with full MTRs, Brinell test results and dimensional check reports. We can supply Hardox-equivalent branded plate or generic AR600 depending on your spec.

  • Technical support — MWalloys technical staff (metallurgists and fabrication engineers) help with welding procedure reviews, bend radius planning and lifecycle estimates so you order the correct thickness and minimize downstream rework.

If you want a formal quote, provide required thickness, hardness band, dimensions, quantity (MT), destination port and required documents (MTR, inspection). We’ll return a mill-backed quote with delivery options.

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