1. A48CPR brand: material brand is A48CPR in NFA 36-205-82.
2. The thickness deviation of A48CPR steel plate shall meet the requirements of grade C in en10029-1991.
3. The straightness of steel plate shall meet the requirements of class n of common straightness in en10029-1991.
4. A48CPR delivery status
Steel plates shall be delivered in normalized or quenched + tempered, normalized + tempered condition.
5. A48CPR smelting method
Adopt electric furnace + external refining + vacuum degassing to smelt, fine grain killed steel.
6. A48CPR chemical composition:
Brand, analysis type, chemical composition of steel wt%
C Si Mn P
Less than S
Less than AI total
More than Cr
Less than Mo
Less than Ni
Less than
A48CPR
Smelting analysis ≤
0.20 or less
0.50 1
1.60 0.025 0.015 -- 0.25 0.10 0.30
Finished product analysis ≤
0.22 or less
0.55 1
1.60 0.030 0.020 -- 0.25 0.10 0.30
Note: (1) when the thickness is greater than 25mm, Nb ≤ 0.040%, V ≤ 0.050%.
Smelting analysis: < 40mm ＜ Mo ≤ 0.20%, > 40mm Mo ≤ 0.30%, finished product analysis: < 40mm Mo ≤ 0.21%, > 40mm Mo ≤ 0.33%
7. Mechanical and technological properties of A48CPR:
Brand thickness
Mm room temperature tensile property bending test impact test
Yield strength
Reh tensile strength
Rm elongation
A thickness tensile Z
%,≥ b=35mm 0℃ -20℃
MPa ≥ MPa% ≥ average value ≥ minimum value ＜ 180 ℃ Akv, J, ≥
A48CPR
＞6～30 285 470-560 23 - - d=2a 31 -
＞30～50 265 22
＞50～80 265 21
＞80～110 255
