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Executive Standard: SA299 Gr. B steel plates comply with the ASME standard, specifically ASTM A299/A299M.2026-08-26
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SA299 is a carbon-manganese-silicon steel plate designed for pressure vessels—often referred to as "gas drum steel" under US standards.2026-08-19
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ntroduction to SA299 Gr.A Steel Plate:
SA299 Gr.A is a steel plate grade designated for boilers and pressure vessels under American standards.2026-08-11 -
A285 Gr.C and SA285 Gr.C steel plates represent the same grade, though they are governed by different standards.2026-08-04
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SA283 Gr.B is a low-to-medium strength carbon structural steel plate conforming to the American Society of Mechanical Engineers (ASME) standard.2026-07-31
EN 10028-3 P275NH steel,P275NH steel Tensile Requirements
EN 10028-3 P275NH steel is a kind steel for pressure purposes (P) with minimum yield strength of 275 MPa (275) which has specified elevated temperature properties (NH).
EN 10028-3 P275NH steel Chemical Requirements:
|
C |
Si |
Mn |
P |
S |
Altotal |
N |
Cr |
|
0.16 |
0.40 |
0.80-1.50 |
0.025 |
0.015 |
0.020 min |
0.012 |
0.30 |
|
Cu |
Mo |
Nb |
Ni |
Ti |
V |
Nb+Ti+V |
|
|
0.30 |
0.08 |
0.05 |
0.50 |
0.03 |
0.05 |
0.05 |
|
EN 10028-3 P275NH steel Tensile Requirements:
|
Product Thickness |
Yield Strength MPa |
Tensile Strength MPa |
Elongation A% |
|
up to 16 mm |
275 min |
390 to 510 |
24 min |
|
16 to 40 mm |
265 min |
390 to 510 |
24 min |
|
over 40 to 60 mm |
255 min |
390 to 510 |
24 min |
|
over 60 to 100 mm |
235 min |
370 to 490 |
23 min |
|
over 100 to 150 mm |
225 min |
360 to 480 |
23 min |
|
over 150 to 250 mm |
215 min |
350 to 470 |
23 min |
EN 10028-3 P275NH steel Impact energy values for the normalised condition:
|
|
-20 oC |
0 oC |
+20 oC |
|
Transverse |
30 J min |
40 J min |
50 J min |
|
Longitudinal |
45 J min |
65 J min |
75 J min |
EN 10028-3 P275NH steel Min. values for proof strength Rp0,2 (MPa) at elevated temperatures:
|
Thickness |
50oC |
100oC |
150oC |
200oC |
250oC |
300oC |
350oC |
400oC |
|
up to 16 mm |
266 |
250 |
232 |
213 |
195 |
179 |
166 |
156 |
|
16 to 40 mm |
256 |
241 |
223 |
205 |
188 |
173 |
160 |
150 |
|
over 40 to 60 mm |
247 |
232 |
215 |
197 |
181 |
166 |
154 |
145 |
|
over 60 to 100 mm |
227 |
214 |
198 |
182 |
167 |
153 |
142 |
133 |
|
over 100 to 150 mm |
218 |
205 |
190 |
174 |
160 |
147 |
136 |
128 |
|
over 150 to 250 mm |
208 |
196 |
181 |
167 |
153 |
140 |
130 |
122 |
More informations about EN 10028-3 P275NH steel, please contact us--BEBON STEEL.