Ramor 450 Medium Hardness Protection Steel

　　Ramor 450 is a unique medium-hardness protection steel developed by SSAB. It perfectly balancesballistic resistance and extreme impact toughness. As the only grade in the Ramor series with official guaranteed full mechanical values and -40°C low-temperature impact performance, it fills the performance gap between Ramor 400 and Ramor 500. Ideal for structures that need to resist both bullet penetration and blast spalling from mines and IEDs.

　　Core Advantages

• 　　Dual performance balance: Medium hardness for ballistic defense + high toughness for anti-blast and anti-cracking capability
• 　　Official full-value guarantee: SSAB certified yield, tensile, elongation and -40°C Charpy impact energy
• 　　Excellent low-temperature stability: Reliable mechanical performance under extreme cold working conditions
• 　　Better processability: Tougher and easier to fabricate than high-hardness Ramor 500 series

　　Mechanical Properties (SSAB Official Guaranteed Values)

　　Note: Higher typical values may vary by heat batch. Final acceptance follows EN 10204 3.1/3.2 MTC test results.

　　Physical Properties (Ramor Series Typical Values)

　　Chemical Composition (Max wt%)

　　Fine-grained, aluminium-killed steel. Lower carbon content than Ramor 500 ensures superior toughness and anti-spalling performance for blast scenarios.

　　Size & Thickness Tolerance

　　Ramor 450 is only available in medium plate thickness range from 8.0 mm to 16.0 mm.

• 　　Length & width tolerance: Complies with EN 10029 or SSAB customized standards
• 　　Flatness: Exceeds EN 10029 Grade N Class L standard
• 　　Surface quality: EN 10163-2 Class B, Subclass 3

　　Inspection & Testing Standard

　　Processing & Usage Guidelines

• 　　Heat Treatment: Delivered in quenched state. No re-heat treatment allowed. Performance will be invalid if heated over 180°C.
• 　　Cold Bending: Better bending performance than Ramor 500. Suitable for forming structural parts with moderate bending requirements.
• 　　Cutting: Laser, plasma and waterjet cutting are applicable. Waterjet cutting is preferred to retain original ballistic edge performance.
• 　　Welding: Compatible with conventional welding methods. Austenitic welding consumables are recommended with strict low-hydrogen control and stable heat input.
• 　　Machining: Use carbide tools, rigid clamping and sufficient lubrication to avoid vibration and extend tool life.
• 　　Safety Notice: Cutting and grinding produce fine steel dust; professional protective equipment is required during operation.

　　Typical Applications

　　Ramor 450 is specially engineered for composite protection scenarios requiring both bulletproof and blast-resistant performance:

• 　　Armored vehicle floors and doors (resist mine and IED explosion impact)
• 　　Anti-riot vehicle structural panels and protective columns
• 　　High-toughness safety cabins and mobile protective shelters
• 　　Intermediate buffer layer for composite armor structures (between Ramor 400 and Ramor 500)
• 　　Anti-spall and anti-explosion security structural components

　　Note: Ramor 450 is not listed in standard EN 1522 / NIJ thickness comparison tables. It is applied based on structural toughness requirements rather than single ballistic grade matching.

　　Ramor Series Grade Selection Guide

　　Get official Ramor 450 datasheet, EN 10204 3.1/3.2 certification and custom processing service for your blast & ballistic protection projects.

　　Disclaimer: All technical data refer to official SSAB standards, for reference only. Final acceptance shall subject to factory MTC actual test values.