EN 10028-2 Chrome Moly Plate

  • En

The European steel standard which includes Chrome Moly plate for pressure vessel purposes is EN 10028-2.

  • The full designation of the standard is "Flat products made of steels for pressure purposes.
  • Non-alloy and alloy steels with specified elevated temperature properties.
  • hrome Moly material grades with varying quantities of chromium and molybdenum.
  • Broadly equivalent to those in the American standards ASME SA387 and ASTM A387

Requirements

Chemical Requirements

(cast analysis, % by mass, maximum permitted unless indicated otherwise)

 16Mo313CrMo4-513CrMoSi5-510CrMo9-1012CrMo9-10X12CrMo5X10CrMoVNb9-1
C 0.12-0.20 0.08-0.18 0.17 0.08-0.14 0.10-0.15 0.10-0.15 0.08-0.12
Si 0.35 0.35 0.50-0.80 0.50 0.30 0.50 0.50
Mn 0.40-0.90 0.40-1.00 0.40-0.65 0.40-0.80 0.30-0.80 0.30-0.60 0.30-0.60
P 0.025 0.025 0.015 0.020 0.015 0.020 0.020
S 0.010 0.010 0.005 0.010 0.010 0.005 0.005
N 0.012 0.012 0.012 0.012 0.012 0.012 0.03-0.07
Cr 0.30 0.70-1.15 1.00-1.50 2.00-2.50 2.00-2.50 4.00-6.00 8.00-9.50
Cu 0.30 0.30 0.30 0.30 0.25 0.30 0.30
Mo 0.25-0.35 0.40-0.60 0.45-0.65 0.90-1.10 0.90-1.10 0.45-0.65 0.85-1.05
Nb - - - - - - 0.06-0.10
Ni 0.30 - 0.30 - 0.30 0.30 0.30
V - - - - - - 0.18-0.25

Properties

Mechanical Properties

Mechanical properties for plates thicker than 16 mm up to 40 mm thick applicable to the transverse direction

 Yield (MPa)Tensile (MPa)Elong. A (%)Impact (J)*
16Mo3 270 min 440 - 590 22 min 31 min
13CrMo4-5 290 min 450 - 600 19 min 31 min
13CrMoSi5.5 310 min 510 - 690 20 min 34 min
10CrMo9-10 300 min 480 - 630 18 min 31 min
12CrMo9-10 355 min 540 - 690 18 min 70 min
X12CrMo5 320 min 510 - 690 20 min 40 min
X10CrMoVNb9-1 445 min 580 - 760 18 min 40 min