P275NH

Fine-grain, high-resistance structural steel for pressure vessels.
Good weldability and good cold and hot-rolling properties under normalised conditions.

Technical Characteristics:

Standard

EN10028-3

Identification Number

1.0487

Classification

Type

Rolling State

Normalised

Brief Description

Fine-grain, high-resistance structural steel for pressure vessels.
Good weldability and good cold and hot-rolling properties under normalised conditions.

Applications

Fine-grain, high-resistance structural steel for pressure vessels.

Standard Coil Stock Range

P275NH 1500 2000
3
4
5
6
7
8
10
12

Chemical Composition

Regulatory standard

Element Value
C (%) ≤ 0,16
Si (%) ≤ 0,40
Mn (%) 0,80-1,50
P (%) ≤ 0,025
S (%) ≤ 0,010
AI (%) ≥ 0,020
Nb (%) ≤ 0,05
Ti (%) ≤ 0,03
V (%) ≤ 0,05
Mo (%) ≤ 0,08
Cu (%) ≤ 0,30
Element Value
Cr (%) ≤ 0,30
Ni (%) ≤ 0,50
N (%) ≤ 0,012
B (%)
Nb+Ti+V (%) ≤ 0,05
Cr+Mo+Ni (%)
Ni+Cr+Cu+Mo (%)
C.E.V. (%) ≤ 0,40*

* = for thicknesses in mm ≤ 60
C.E.V. (%) = C+(Mn/6)+[(Cr+Mo+V)/5]+[(Ni+Cu)/15]

Mechanical Properties

According to UNI EN 10028

Mechanical characteristics Direction Thicknesses Values
 Re (MPa) T ≤ 16 ≥ 275
T > 16 ≤ 40 ≥ 265
 Rm(MPa) T ≤ 16 390-510
T > 16 ≤ 40 390-510
 A80 (%) T ≥ 19
 A5 (%) T ≥ 24
 Bend Test 180°
 KV 20°C (J) L ≤ 250 ≥ 75*
T ≤ 250 ≥ 50*
 KV 0°C (J) L ≤ 250 ≥ 65*
T ≤ 250 ≥ 40*
 KV -20°C (J) L ≤ 250 ≥ 45*
T ≤ 250 ≥ 30*
 KV -40°C (J)
 KV -50°C (J)

* = Standard option
t = thickness in mm of the test piece for the bend test
ADW1 certification upon request
L = Tensile testing carried out on longitudinal test pieces
T = Bend tests carried out on cross-cut test pieces

Tolerances

Tolerances on the dimensions and on the shape                 UNI EN 10051
Surface condition                                                                     UNI EN 10163-2

Certifications

EN 10204-3.1 PED/ 97/23/EC AD2000W1

DISCLAIMER: SIDASTICO S.p.A. declines any and all liability for the accuracy and precision of the information herein and reserves the right to modify any part without advanced notice.

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