EN 10028-2:2017 P355GH Steel: Specifications & Listings
EN 10028-2:2017 P355GH: P355GH: non-alloy quality steel for pressure purposes with specified elevated temperature properties. Specified in EN 10028-2:2017.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Si
Mn
P
S
Nb
Al
N
Cr
Cu
Mo
Ni
Ti
V
0.10-0.22
<=0.60
1.10-1.70
<=0.025
<=0.010
<=0.040
>=0.020
<=0.012
<=0.30
<=0.30
<=0.08
<=0.30
<=0.03
<=0.02
Mechanical Properties
Tensile Strength
510-650 MPa
Yield Strength
>=355 MPa
Elongation
>=20%
Condition
Usual delivery condition normalized (+N), nominal thickness up to 16 mm; transverse direction, Yield Strength is ReH, Elongation is A
More data from EN 10028-2:2017
From the standard
Mechanical properties by thickness6 thickness ranges
Delivery condition
Thickness t (mm)
Yield strength ReH, min (MPa)
Tensile strength Rm (MPa)
Elongation A, min (%)
+N
up to 16
355
510 to 650
20
+N
over 16 to 40
345
510 to 650
20
+N
over 40 to 60
335
510 to 650
20
+N
over 60 to 100
315
490 to 630
20
+N
over 100 to 150
295
480 to 630
20
+N
over 150 to 250
280
470 to 630
20
Transverse direction; usual delivery condition as stated per row.
Source: EN 10028-2:2017, Table 3
Impact energy KV2 (Charpy V-notch)1 row
Condition or thickness
KV2 min at -20 deg C (J)
KV2 min at 0 deg C (J)
KV2 min at +20 deg C (J)
all thicknesses
27
34
40
A dash means a value may be agreed at the time of enquiry and order; 40 J may be agreed at +20 deg C where 31 or 27 J is listed.
Source: EN 10028-2:2017, Table 3
Proof strength at elevated temperature6 thickness ranges, 50 to 500 deg C
Thickness t (mm)
Rp0.2 min at 50 deg C (MPa)
Rp0.2 min at 100 deg C (MPa)
Rp0.2 min at 150 deg C (MPa)
Rp0.2 min at 200 deg C (MPa)
Rp0.2 min at 250 deg C (MPa)
Rp0.2 min at 300 deg C (MPa)
Rp0.2 min at 350 deg C (MPa)
Rp0.2 min at 400 deg C (MPa)
Rp0.2 min at 450 deg C (MPa)
Rp0.2 min at 500 deg C (MPa)
up to 16
343
323
299
275
252
232
214
202
-
-
over 16 to 40
334
314
291
267
245
225
208
196
-
-
over 40 to 60
324
305
282
259
238
219
202
190
-
-
over 60 to 100
305
287
265
244
224
206
190
179
-
-
over 100 to 150
285
268
249
228
209
192
178
167
-
-
over 150 to 250
271
255
236
217
199
183
169
159
-
-
Minimum 0.2 percent proof strength; delivery condition as given in Table 3.
Source: EN 10028-2:2017, Table 4
Heat treatment guidelineguideline temperatures
Normalizing temperature
890 to 950 deg C
Quenching temperature
-
Tempering temperature
-
Informative guideline (Annex A).
Source: EN 10028-2:2017, Table A.1
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