Shop Rockhard 400 BHN Abrasion Resistant Steel Plates at Best Price in Telangana — Conquest Steel & Alloys

Conquest Steel & Alloys supplies Rockhard 400 BHN Abrasion Resistant Steel Plates, engineered for machinery and structures under continuous heavy wear — the kind of environment that wears through standard steel far faster than the maintenance budget allows. At 370–430 HBW, Rockhard 400 sits well above general-purpose 200 BHN plate, making it the specified grade for crusher liners, haul truck bodies, excavator buckets, and quarry screening equipment.

Manufactured to EN 10051, the plate is tested for tensile strength (1250–1600 MPa), yield strength (≥1000 MPa), and elongation (10–12%), giving fabricators verified mechanical data rather than a generic hardness rating. Chromium and nickel content in the composition improves wear resistance and toughness together, so the plate holds up to sustained impact rather than only resisting surface scratching.

Rockhard 400 is available as standard plates, thinner sheets, and pre-profiled liner plates, in thicknesses from 6mm to 100mm, widths up to 2500mm, and lengths up to 12000mm. Custom cutting and sizing to project drawings is available, cutting down on-site fabrication work for larger orders.

Conquest Steel & Alloys is a Telangana-based manufacturer, supplier, trader, and exporter of steel plates across the full abrasion-resistant hardness range, from 200 BHN through Rockhard 400. Every batch passes macro testing, micro testing, hardness testing, toughness testing, destructive testing, and PMI testing before dispatch, so what leaves the facility matches what's on the specification sheet — backed by documentation, not just a claim.

For procurement teams sourcing wear parts across mining, quarry, or heavy construction equipment, Rockhard 400 offers a practical middle ground between fabrication ease and serious impact resistance. Because we also stock 200 BHN and other AR grades, teams can specify different hardness plates for different wear zones on the same machine, all from a single supplier.

Request a quote for Rockhard 400 BHN plate — share your thickness, size, and quantity, and our team will confirm pricing and delivery.

What Are Rockhard 400 BHN Abrasion Resistant Steel Plates?

Rockhard 400 is a through-hardened wear plate designed for equipment that takes continuous impact and friction from rock, ore, or heavy aggregate. Its 370–430 HBW hardness places it well above general-purpose 200 BHN plate, which is why it's specified for parts like crusher liners and truck beds rather than lighter chute or ductwork applications.

Unlike surface-hardened alternatives, Rockhard 400 carries its hardness through the entire plate thickness. That's a practical advantage during fabrication — cutting, drilling, or profiling the plate doesn't expose a softer core underneath.

Where Are They Used? (Application)

Rockhard 400 goes into equipment that absorbs repeated heavy impact, not just surface scraping. Common applications include:

• Crusher liners — absorb direct rock-on-metal impact in primary and secondary crushing stages
• Dumper and haul truck beds — resist gouging from loading and dumping sharp-edged rock and ore
• Excavator and loader buckets — hold up against dense, abrasive ground during continuous digging
• Feed chutes and screening equipment — manage high-velocity material impact ahead of crushing
• Conveyor structures at transfer points — handle heavy aggregate load where wear concentrates
• Demolition and recycling equipment — deal with mixed metal debris and abrasive material together

If a wear zone is manageable with 200 BHN plate, Rockhard 400 is more hardness than the job needs — and harder to weld into the bargain. It's the right call specifically where wear is heavy and constant, not occasional.

Why It Is Important

Specifying the wrong hardness on a heavy-wear part shows up fast in the maintenance schedule — a part rated for years fails in months. Rockhard 400's 370–430 HBW hardness is built for exactly the zones where 200 BHN plate would gouge or deform quickly: crusher jaws, bucket edges, and truck beds absorbing direct rock impact.

The trade-off sits on the fabrication side. Higher hardness demands tighter welding control and less forgiving bending. Matching the grade to the actual wear intensity — not over-speccing, not under-speccing — keeps both service life and fabrication cost where they should be.

Features of Rockhard 400 BHN Abrasion Resistant Steel Plates

• 370–430 HBW hardness — engineered for sustained impact and abrasion, not surface-level wear
• Tensile strength of 1250–1600 MPa — holds up under heavy mechanical load without cracking
• Yield strength of ≥1000 MPa — resists permanent deformation under continuous stress
• Elongation of 10–12% — retains enough ductility to absorb impact rather than fracture brittle
• EN 10051 compliance — built to a recognised European standard, verifiable on request
• Chromium and nickel alloying — adds wear resistance and toughness beyond plain carbon steel
• Supplied as plates, sheets, or liner plates — fabricated to the part, not shipped as generic flat stock

Rockhard 400 Specification: