螺旋鋼管的理化性能
標(biāo)準(zhǔn)
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鋼級
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化學(xué)成分
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拉伸性能
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夏比
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C
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Mn
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P
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S
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Si
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其它other
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max
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max
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max
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max
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max
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min
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max
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min
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max
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D≤168.3 mm |
D>168.3 mm |
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GB/T3091-2008
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Q215A
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≤0.15
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0.25<1.20
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0.045
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0.050
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0.35
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- - - - Nb\v\Ti加入見 GB/T1591-94 |
215
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-
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335
|
-
|
15
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>31
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-
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Q215B
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≤0.15
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0.25-0.55
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0.045
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0.045
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0.35
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215
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335
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15
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>31
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|||||
Q235A
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≤0.22
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0.30-0.65
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0.045
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0.050
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0.35
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235
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375
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15
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>26
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Q235B
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≤0.20
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0.30≤1.80
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0.045
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0.045
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0.35
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235
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375
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15
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>26
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Q295A
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0.16
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0.80-1.50
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0.045
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0.045
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0.55
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295
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390
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13
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>23
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Q295B
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0.16
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0.80-1.50
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0.040
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0.040
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0.55
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295
|
390
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13
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>23
|
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Q345A
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0.20
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1.00-1.60
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0.045
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0.045
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0.55
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345
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510
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13
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>21
|
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Q345B
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0.20
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1.00-1.60
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0.040
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0.040
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0.55
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345
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510
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13
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>21
|
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GB/T9711.1-1997
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L175
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0.21
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0.60
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0.030
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0.030
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-
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可添加Nb\v\Ti三種元素 中的一種或任一組合 |
175
|
-
|
315
|
825
|
27
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可選擇沖擊功與 剪切面積 一個(gè)或兩個(gè) 韌性指標(biāo) L555見標(biāo)準(zhǔn) |
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L210
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0.21
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0.90
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0.030
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0.030
|
210
|
335
|
25
|
|||||||
L245
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0.26
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1.15
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0.030
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0.030
|
245
|
415
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21
|
|||||||
L290
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0.28
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1.25
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0.030
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0.030
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290
|
415
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21
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L320
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0.30
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1.25
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0.030
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0.030
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320
|
435
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20
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L360
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0.30
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1.25
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0.030
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0.030
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360
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460
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19
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|||||||
L390
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0.26
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1.35
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0.030
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0.030
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390
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490
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18
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|||||||
L415
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0.26
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1.35
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0.030
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0.030
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415
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520
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17
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L450
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0.26
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1.40
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0.030
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0.030
|
450
|
535
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17
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L485
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0.23
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1.60
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0.030
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0.030
|
485
|
570
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16
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|||||||
L555
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0.18
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1.80
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0.030
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0.030
|
555
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625
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15
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AP1 5L(PSL1)
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|
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(Timax)
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B級Nb+V≤0.03%, ≥B級鋼可添加Nb、 V或其組合, 且Nb+V+Ti≤0.15% Grade B Nb+V≤0.03% Steel≥Grade B, (Niovium Vanadium Titanium orcombinations maybe usde but Nb+V +Ti≤0.15%) |
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-
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-
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不要求或可 選擇沖擊功 與剪切面積 一個(gè)或兩 個(gè)韌性判劇 |
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A25
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0.21
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0.60
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0.030
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0.030
|
-
|
172
|
310
|
|||||||
A
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0.22
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0.90
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0.030
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0.030
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-
|
207
|
331
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B
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0.26
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1.20
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0.030
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0.030
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0.040
|
241
|
414
|
|||||||
X42
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0.26
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1.30
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0.030
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0.030
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0.040
|
290
|
414
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X46
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0.26
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1.40
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0.030
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0.030
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0.040
|
317
|
434
|
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X52
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0.26
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1.40
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0.030
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0.030
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0.040
|
359
|
455
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X56
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0.26
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1.40
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0.030
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0.030
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0.040
|
386
|
490
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X60
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0.26
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1.40
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0.030
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0.030
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0.040
|
414
|
517
|
|||||||
X65
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0.26
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1.45
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0.030
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0.030
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0.060
|
448
|
531
|
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X70
|
0.26
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1.65
|
0.030
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0.030
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0.060
|
483
|
565
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