Ramor 550 Ballistic Protection Steel

Extra-high hardness ballistic steel for armored vehicles and security applications. Thickness from 3.0 to 15.0 mm with superior impact resistance.

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Ramor 550 Ballistic Steel Plate

Ramor 550 – Ultra-Hard Ballistic Steel for Premium Protection

Ramor 550 is the James Bond of ballistic steels—calm under pressure and incredibly hard to kill. With hardness ratings between 540–600 HBW and thicknesses up to 15 mm, it’s built to stop what shouldn't be moving.

Ideal for armored vehicles, fortified shelters, and any structure where survival isn’t optional, Ramor 550 combines high impact resistance with consistent performance—because your protection deserves nothing less than elite metallurgy.

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Ramor 550 Technical Specifications

Explore the mechanical strength, chemical balance, and dimensional tolerances of Ramor 550 — engineered for top-tier ballistic defense.

Mechanical Properties

Ramor 550 offers high hardness and strength for advanced ballistic applications. It undergoes rigorous Brinell hardness testing in compliance with EN ISO 6506-1 standards. Hardness is measured between 0.3 to 2 mm beneath the milled surface to ensure consistency across the material.

Thickness Range (mm) Brinell Hardness (HBW)
3.0 – 15.0 540 – 600

Chemical Composition (Ladle Analysis)

The composition of Ramor 550 is carefully controlled to deliver excellent hardness and toughness while maintaining workability. The steel is grain refined, and elements like phosphorus and sulfur are minimized to enhance purity and structural integrity.

Element Maximum %
Carbon (C)0.36
Silicon (Si)0.70
Manganese (Mn)1.50
Phosphorus (P)0.015
Sulfur (S)0.010
Chromium (Cr)1.50
Nickel (Ni)2.50
Molybdenum (Mo)0.80
Boron (B)0.005

Dimensional Tolerances

Ramor 550 is manufactured with strict dimensional control. Tolerances vary depending on whether the product is supplied as a sheet or plate. SSAB tolerances often exceed standard EN norms, ensuring higher reliability and flatness.

Thickness Tolerances
Product Type Thickness (mm) Tolerance (mm)
Sheet3.00 – 4.00-0.0 / +0.36
Sheet4.01 – 5.00-0.0 / +0.40
Sheet5.01 – 6.00-0.0 / +0.42
Plate6.0 – 7.9-0.0 / +0.80
Plate8.0 – 15.0-0.0 / +1.00
Flatness and Shape
  • Flatness: More restrictive than EN 10029 Class N (for plate) and EN 10051 (for sheet)
  • Shape Tolerance: In accordance with EN 10029 and EN 10051, or SSAB internal standards on request
  • Length & Width: Sheets supplied with milled edges as standard

Surface Quality

Ramor 550 conforms to EN 10163-2 Class B, Subclass 3, indicating a high-quality surface finish suitable for visible or exposed installations. The steel’s surface condition enhances both aesthetic appearance and corrosion protection post-treatment.

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Ramor 550 – Ballistic Protection Steel You Can Trust

Ramor 550 is engineered for high-threat environments, offering consistent hardness, structural integrity, and resistance against ballistic impacts. Trusted by defense and security industries worldwide for vehicle armor and protective installations.

High Hardness Steel

With a Brinell hardness range of 540–600 HBW, Ramor 550 delivers superior stopping power against ballistic threats, while maintaining structural performance.

Ready for Combat Conditions

Delivered in a quenched and hardened state, Ramor 550 requires no additional heat treatment and is ideal for immediate use in critical armor applications.

Heavy-Duty Packing & Global Shipping

Ramor 550 ballistic plates are packed using reinforced wooden crates, corrosion-resistant barriers, and international logistics protocols to ensure safe delivery worldwide.

Heavy-duty crate for Ramor 550 steel
Moisture protection wrapping for ballistic steel
Custom-labeled pallet for steel plate export
Loading Ramor 550 crate for air freight
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Frequently Asked Questions – Ramor 550 Ballistic Steel

Find answers to common questions about Ramor 550, the high-hardness ballistic protection steel.

Ramor 550 is designed primarily for armored vehicles, security enclosures, and other protective structures requiring extra-high hardness ballistic steel to withstand high-impact threats.

Ramor 550 comes in thicknesses ranging from 3.0 mm up to 15.0 mm, with a Brinell hardness between 540 and 600 HBW, offering a balance between protection and weight.

Ramor 550 is supplied in a quenched and hardened condition, meaning it is ready for immediate use without additional heat treatment or hardening processes.

Ramor 550 has carefully controlled alloying elements including carbon (max 0.36%), silicon (max 0.70%), manganese (max 1.5%), chromium (max 1.5%), nickel (max 2.5%), molybdenum (max 0.8%), and others to ensure optimal hardness and toughness.

Thickness tolerances vary by product type but generally range from -0.0 mm up to +1.0 mm depending on sheet or plate thickness. Length, width, flatness, and shape comply with EN 10051 and EN 10029 standards or can be customized by agreement.

You can download the detailed datasheet from our website or contact our technical support team for assistance with specifications, applications, and ordering information.
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