S275N thiab S275M yog weldable, nplua -cov qauv hlau raws li European cov qauv (EN 10025-3 rau S275N / NL, EN 10025-4 rau S275M) nrog qhov tsawg kawg nkaus yield zog ntawm 275 MPa nyob rau hauv lawv qhov chaw tsim khoom qis thiab qhov sib txawv ntawm 275 MPa. yog normalized (N) rau zoo weldability thiab tej yam kev soj ntsuam ntawm -20 degree, thaum S275M siv thermomechanical dov (TMCP) rau kev txhim kho homogeneity, feem ntau tshem tawm nyias normalization, ua rau nws raug nqi-zoo rau kev tsim kho, tab sis S275NL muaj superior toughness ntawm -50 degree.
Cov cuab yeej cuab tam rau S275N steel phaj
| Thickness (hli) | ||||||||
| S275N | Tsawg dua los yog sib npaug li 16 | >16 Tsawg dua lossis sib npaug li 40 | >40 Tsawg dua los yog sib npaug rau 63 | >63 Tsawg dua lossis sib npaug li 80 | >80 Tsawg dua los yog sib npaug rau 100 | >100 Tsawg dua los yog sib npaug rau 150 | >150 Tsawg dua los yog sib npaug li 200 | > 200 |
| Yield zog (Ntau dua lossis sib npaug rau Mpa) | 275 | 265 | 255 | 245 | 235 | 225 | 215 | 205 |
| Tsawg dua los yog sib npaug li 100 | >100 Tsawg dua los yog sib npaug li 200 | > 200 | ||||||
| Tensile zog (Mpa) | 370-510 | 350-480 | 350-480 | |||||
Cov cuab yeej cuab tam rau S275M steel phaj
|
Qib
|
Thickness |
Yield zog |
Tensile zog |
Elongation |
Impact Zog |
|
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
|
-20 degree |
|
|
S275M |
Tsawg dua los yog sib npaug li 16 |
275 |
370-530 |
24 |
40 |
|
16>mus tsawg dua los yog sib npaug li 40 |
265 |
370-530 |
24 |
40 |
|
|
40>los tsawg dua los yog sib npaug li 63 |
255 |
350-510 |
24 |
40 |
|
|
63>los tsawg dua los yog sib npaug li 80 |
245 |
350-510 |
24 |
40 |
|
|
80>kom tsawg dua los yog sib npaug li 100 |
245 |
350-510 |
24 |
40 |
|
|
100>los tsawg dua los yog sib npaug li 120 |
240 |
350-510 |
24 |
40 |
Tshuaj muaj pes tsawg leeg rau S275N steel phaj
| Cov ntsiab lus tseem ceeb ntawm S275N steel phaj | ||||||
| C | Si | Mn | P | S | Nb | V |
| 0.18 | 0.40 | 0.50-1.50 | 0.030 | 0.025 | 0.05 | 0.05 |
| Al (tag nrho) | Ti | Cr | Ni | Mo | Cu | N |
| Ntau dua lossis sib npaug li 0.02 | 0.05 | 0.30 | 0.30 | 0.10 | 0.55 | 0.015 |
Tshuaj muaj pes tsawg leeg rau S275M steel phaj
|
EN10025-4 S275M Tshuaj lom neeg muaj pes tsawg leeg |
|||||||
|
Qib |
Cov ntsiab lus Max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
S275M |
0.15 |
0.55 |
1.60 |
0.030 |
0.030 |
0.015 |
|
|
Nb |
V |
Ti |
Cu |
Cr |
Ni |
Mo |
|
|
0.06 |
0.10 |
0.06 |
0.60 |
0.35 |
0.35 |
0.13 |
|
S275N
S: Cov qauv hlau.
275: Yam tsawg kawg nkaus tawm lub zog (MPa).
N: Kev xa khoom yog normalized, lub ntsiab lus tswj kom txias kom zoo dua cov qauv nplej.
Toughness: Tested rau Charpy V-notch cuam tshuam lub zog ntawm -20℃.
Siv: General engineering, hnyav machinery, txuas hniav, tab sis haum rau nruab nrab huab cua.
S275M
S: Cov qauv hlau.
275: Yam tsawg kawg nkaus tawm lub zog (MPa).
M: Kev xa khoom yog thermomechanically dov (TMCP), sib txuas cov kev tswj dov nrog ceev kom txias, txo cov kev ntxhov siab seem.
Toughness: Muab zoo toughness thiab weldability, feem ntau tsis xav tau ntxiv normalization.
Siv: Kev xaiv nyiaj txiag rau cov txuas hniav, tso tsheb hlau luam, qhov dej nyab, thiab cov qauv ua ntej uas TMCP cov txiaj ntsig muaj txiaj ntsig.
Qhov tseem ceeb Distinction: N vs M
S275N siv cov kev kho cua sov sib cais tom qab dov.
S275M ua tiav nws cov khoom los ntawm TMCP, muab cov nqi txuag thiab cov khoom zoo dua rau ntau daim ntawv thov.
S275NL yog qhov hloov pauv ntawm S275N, muab kev ua haujlwm hnyav dua ntawm qhov txias dua (-50 degree).
