Ramor 300 is a cost-effective, low-alloy ballistic steel from SSAB, designed for low-level bullet and fragment protection. It comes pre-quenched and ready to use, features moderate hardness and excellent formability, and is the perfect lightweight alternative to higher-grade Ramor steels for regular security scenarios.
Product Highlights
Ready for immediate use: Delivered in full quenched condition, no additional heat treatment is required, saving your processing time and cost.
Easy to fabricate: With balanced hardness and low-alloy composition, this steel can be easily bent, cut and stamped to make custom protective parts.
Lightweight & economical: Lighter than high-hardness armor steel, it offers reliable basic protection without excessive weight or budget waste.
Core Technical Data
|
Technical Parameter |
Specification |
|
Brinell Hardness |
260–320 HBW |
|
Available Thickness |
3.0–6.0 mm |
|
Delivery State |
Quenched (No further heat treatment allowed) |
|
Flatness Tolerance |
≤ 6 mm per 1000mm |
|
Density |
7.67–7.86 kg/dm³ |
|
Elastic Modulus |
190–210 GPa |
Chemical Composition (Max wt%)
Ramor 300 adopts high-cleanliness low-alloy formula with strict impurity control, ensuring stable mechanical performance and good machinability.
|
Element |
Max Content (wt%) |
Element |
Max Content (wt%) |
|
C |
0.2 |
Cr |
0.8 |
|
Si |
0.5 |
Mo |
0.3 |
|
Mn |
2 |
B |
0.005 |
|
P |
0.03 |
- |
- |
|
S |
0.01 |
- |
- |
Note: Actual data of each batch shall prevail with the official MTC report.
Size Tolerance Standard
|
Thickness Range (mm) |
Thickness Tolerance (mm) |
Flatness (per 1000mm) |
|
3.00–4.00 |
0 / +0.36 |
≤ 6 mm |
|
4.01–5.00 |
0 / +0.40 |
≤ 6 mm |
|
5.01–6.00 |
0 / +0.42 |
≤ 6 mm |
Ramor Series Hardness Grade
Ramor 300 (260–320 HBW) is the entry-level lightweight grade in SSAB Ramor protection steel series:
Ramor 300 < Ramor 400/450 < Ramor 500 < Ramor 550 < Ramor 600
Typical Applications
Suitable for scenarios against pistol bullets and small fragments:
Cash-in-transit & security vehicle inner lining
Bank safes, vault doors and anti-theft reinforcement plates
Shooting range anti-ricochet barriers and backboards
Security booths and light protective building structures
High-value goods and confidential document transport containers
Civil anti-theft doors, windows and security partitions
Grade Selection Guide
Choose Ramor 300: For low-threat scenes, lightweight and cost-sensitive projects (pistol & fragment protection).
Choose Ramor 400/450: For medium-level threat protection with higher hardness requirements.
Choose Ramor 500+: For high-level defense against rifle bullets and armor-piercing threats.
Important Usage Notes
1. No re-heat treatment: Do not heat the plate above 180℃, otherwise its protective and mechanical properties will fail.
2. Safe processing: Wear protective equipment and ensure ventilation during cutting, welding and grinding.
3. Subject to official documents: All parameter data is for reference only, design and acceptance shall follow the official MTC of each batch.
Get full Ramor 300 technical datasheets and professional grade selection advice for your project.
Disclaimer: All data is sourced from official SSAB public technical materials, for project reference only.
