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|
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用途:用于石油、天然氣工業中的氣、水、油輸送
API SPEC 5L-2011(管線管規范),是美國石油學會編制并發布的,在世界各地通用。 管線管:是把抽出地面的油、氣或水,通過管線管輸送到石油和天然氣工業企業。管線管包括無縫和焊接管兩種,其管端有平端、帶螺紋端和承口端;其連接方式為端頭焊接、接箍連接、承插連接等。該管主要材質為L245、L290、L360、L415、L480、GR.B、X42、X46、X56、X65、X70、X80、X100等鋼級。

根據GB/T9711.1管線鋼管性能要求的不同,按其回火溫度的不同,可將回火分為以下幾種:
【一】低溫回火(150-250度)
低溫回火所得組織為回火馬氏體。其目的是在保持淬火鋼的高硬度和高耐磨性的前提下,降低其淬火內應力和脆性,以免使用時崩裂或過早損壞。它主要用于各種高碳的切削刃具,量具,GB/T9711.1管線鋼管,滾動軸承以及滲碳件等,回火后硬度一般為HRC58-64。
【二】中溫回火(250-500度)
中溫回火所得組織為回火屈氏體。其目的是獲得高的屈服強度,彈性極限和較高的韌性。因此,它主要用于各種GB/T9711.1管線鋼管和熱作模具的處理,回火后硬度一般為HRC35-50。
【三】高溫回火(500-650度)
高溫回火所得組織為回火索氏體。習慣上將淬火加高溫回火相結合的熱處理稱為調質處理,其目的是獲得強度,硬度和塑性,韌性都較好的綜合機械性能。因此,廣泛用于汽車,GB/T9711.1管線鋼管,機床等的重要結構零件,如連桿,螺栓,齒輪及軸類。回火后硬度一般為HB200-330。
力學性能:
|
Standard |
Product Level |
Steel grade |
Yield Strength (min), Mpa |
Tensile Strength(MPa) |
|
API 5L GB/T9711.2 |
PSL 1 |
A or L210 |
210 |
335 |
|
B or L245 |
245 |
415 |
||
|
x42 or L290 |
290 |
415 |
||
|
X46 or L320 |
320 |
435 |
||
|
X52 or L360 |
360 |
460 |
||
|
X56 or L390 |
390 |
490 |
||
|
X60 or L415 |
415 |
520 |
||
|
X70 |
483 |
565 |
||
|
PSL 2 |
BR or L245R |
245~450 |
415~760 |
|
|
X42R or L290R |
290~495 |
415~760 |
||
|
BN or L245N |
245~450 |
415~760 |
||
|
X42N or L290N |
290~495 |
415~760 |
||
|
X46N or L320N |
320~525 |
435~760 |
||
|
X52N or L360N |
360~530 |
460~760 |
||
|
X56N or L390N |
390~545 |
490~760 |
||
|
X60N or L415N |
415~565 |
520~760 |
||
|
X65N or L450N |
425~566 |
525~760 |
||
|
X70 or L480 |
484~565 |
565~768 |
||
|
X80 |
552~690 |
621~827 |
管線管化學元素表:
|
roduct Level |
Steel grade |
Chemical composition, % |
||||||||
|
C |
Mn |
P |
S |
Si |
V |
Nb |
Ti |
CEpcm |
||
|
PSL 1 |
B or L245 |
≤0.28 |
≤1.20 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
- |
|
x42 or L290 |
≤0.28 |
≤1.30 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
- |
|
|
X46 or L320 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
- |
|
|
X52 or L360 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
- |
|
|
X56 or L390 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
- |
|
|
X60 or L415 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
- |
|
|
X70 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
- |
|
|
PSL 2 |
BR or L245R |
≤0.24 |
≤1.20 |
≤0.025 |
≤0.015 |
≤0.40 |
c |
c |
≤0.04 |
≤0.25 |
|
X42R or L290R |
≤0.24 |
≤1.20 |
≤0.025 |
≤0.015 |
≤0.40 |
≤0.06 |
≤0.05 |
≤0.04 |
≤0.25 |
|
|
BN or L245N |
≤0.24 |
≤1.20 |
≤0.025 |
≤0.015 |
≤0.40 |
c |
c |
≤0.04 |
≤0.25 |
|
|
X42N or L290N |
≤0.24 |
≤1.30 |
≤0.025 |
≤0.015 |
≤0.40 |
≤0.06 |
≤0.05 |
≤0.04 |
≤0.25 |
|
|
X46N or L320N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.40 |
≤0.07 |
≤0.05 |
≤0.04 |
≤0.25 |
|
|
X52N or L360N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
≤0.25 |
|
|
X56N or L390N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
≤0.25 |
|
|
X60N or L415N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
- |
|
|
X65N or L450N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
- |
|
|
X70N |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
- |
|
|
X80 |
≤0.24 |
≤1.40 |
≤0.025 |
≤0.015 |
≤0.45 |
≤0.10 |
≤0.05 |
≤0.04 |
- |
|

API SPEC 5L--美國石油學會標準
GB/T9711--中國國家標準
用途:
用于石油、天然氣工業中的氧、水、油輸送管
主要生產鋼管牌號:
B、X42、X52、X60、X65、X70 L245 L290 L320 L360 L390 L450 L485
尺寸公差:
|
鋼管種類 |
鋼管外徑(D) |
鋼管壁厚(S) |
|
|
|
管體 |
鋼管外徑 (mm) |
允許偏差(mm) |
鋼管外徑(mm) |
允許偏差(mm) |
|
≥60.3且S<20 |
±0.75% |
≤73.0 |
+15%,-12.5% |
|
|
≥60.3且S≥20 |
±1.00% |
>73.0且S<20 |
+15%,-12.5% |
|
|
|
|
>73.0且S≥20 |
+17.5%,-10 |
|
力學性能:
|
標準 |
牌號 |
抗拉強度(MPa) |
屈服強度(MPa) |
伸長率(%) |
0℃沖擊功 Akv(J) |
熱處理狀態 |
|
|
API SPEC 5L GB/T9711 |
L245/B |
≥415 |
245~440 |
≤0.80 |
22 |
≥40 |
|
|
API SPEC 5L GB/T9711 |
L290/X42 |
≥415 |
290~440 |
≤0.80 |
21 |
≥40 |
正火 |
|
API SPEC 5L GB/T9711 |
L360/X52 |
≥460 |
360~510 |
≤0.85 |
20 |
≥40 |
|
|
API SPEC 5L GB/T9711 |
L415/X60 |
≥520 |
415~565 |
≤0.85 |
18 |
≥40 |
|
|
API SPEC 5L GB/T9711 |
L450/X65 |
≥535 |
450~570 |
≤0.90 |
18 |
≥40 |
淬火+回火 |
|
API SPEC 5L GB/T9711 |
L485/X70 |
≥570 |
485~605 |
≤0.90 |
18 |
≥40 |
淬火+回火 |
化學成分:
|
標準 |
化學成分(%) |
CEV(%) |
|
|
|
|
|
|
|
|
|
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
|
|
|
|
API SPEC 5L GB/T9711.2 |
B |
≤0.16 |
≤0.40 |
≤1.10 |
≤0.020 |
≤0.010 |
- |
- |
- |
≤0.42 |
|
X42 |
≤0.17 |
≤0.40 |
≤1.20 |
≤0.020 |
≤0.010 |
≤0.05 |
≤0.05 |
≤0.04 |
≤0.42 |
|
|
X52 |
≤0.20 |
≤0.45 |
≤1.60 |
≤0.020 |
≤0.010 |
≤0.10 |
≤0.05 |
≤0.04 |
≤0.45 |
|
|
X60 |
≤0.21 |
≤0.45 |
≤1.60 |
≤0.020 |
≤0.010 |
≤0.15 |
≤0.05 |
≤0.04 |
協議 |
|
|
X65 |
≤0.16 |
≤0.45 |
≤1.60 |
≤0.020 |
≤0.010 |
≤0.06 |
≤0.05 |
≤0.06 |
≤0.45 |
|
|
X70 |
≤0.16 |
≤0.45 |
≤1.70 |
≤0.020 |
≤0.010 |
≤0.06 |
≤0.05 |
≤0.06 |
≤0.45 |
|
注:
1.0.015%≤Altot<0.06%;N≤0.012%;Al/N≥2/1;Cu≤0.25%;Ni≤0.30%;Cr≤0.30%;Mo≤0.10%
2.V+Nb+Ti≤0.15
3.X60、X65、X70經協商Mo≤0.35%
美國石油學會標準(API SPEC 5L )管線管規格表
|
名義尺寸 Nominal Size |
外徑 Outside Diameter |
壁厚 Wall Thickness |
平端管米重 Plain-end Weight |
|
|
|
|
inch |
mm |
inch |
mm |
lb/ft |
kg/m |
|
|
0.405 |
0.405 |
10.29 |
0.095 |
2.4 |
0.31 |
0.47 |
|
0.54 |
0.54 |
13.72 |
0.088 |
2.2 |
0.43 |
0.62 |
|
0.54 |
13.72 |
0.119 |
3.0 |
0.54 |
0.79 |
|
|
0.675 |
0.675 |
17.15 |
0.091 |
2.3 |
0.57 |
0.84 |
|
0.675 |
17.15 |
0.126 |
3.2 |
0.74 |
1.10 |
|
|
0.84 |
0.84 |
21.34 |
0.109 |
2.8 |
0.85 |
1.28 |
|
0.84 |
21.34 |
0.147 |
3.7 |
1.09 |
1.61 |
|
|
1.05 |
1.05 |
26.67 |
0.113 |
2.9 |
1.13 |
1.70 |
|
1.05 |
26.67 |
0.154 |
3.9 |
1.48 |
2.19 |
|
|
1.315 |
1.315 |
33.4 |
0.133 |
3.4 |
1.68 |
2.52 |
|
1.315 |
33.4 |
0.179 |
4.6 |
2.17 |
3.21 |
|
|
1.660 |
1.660 |
42.2 |
0.145 |
3.7 |
2.72 |
3.43 |
|
1.660 |
42.2 |
0.191 |
4.9 |
3.00 |
4.51 |
|
|
1.900 |
1.660 |
42.2 |
0.382 |
9.7 |
5.22 |
7.77 |
|
1.900 |
48.3 |
0.145 |
3.7 |
2.72 |
4.07 |
|
|
1.900 |
48.3 |
0.200 |
5.1 |
3.63 |
5.43 |
|
|
1.900 |
48.3 |
0.400 |
10.2 |
6.41 |
9.58 |
|
|
2 3/8 |
2.375 |
60.3 |
0.109 |
2.8 |
2.64 |
3.97 |
|
2.375 |
60.3 |
0.125 |
3.2 |
3.00 |
4.51 |
|
|
2.375 |
60.3 |
0.141 |
3.6 |
6.36 |
5.03 |
|
途:用于石油、天然氣工業中的氣、水、油輸送
|
|
標準 Standard |
產品規定類別 |
鋼級 |
化學成分 Chemical composition, % |
||||||||
|
C |
Mn |
P |
S |
Si |
V |
Nb |
Ti |
CEpcm |
|||
|
API 5L |
PSL 1 |
L210 or A |
≤ |
≤ |
≤ |
≤ |
- |
- |
- |
- |
≤ |
|
L245 or B |
≤ |
≤ |
≤ |
≤ |
- |
- |
- |
- |
≤ |
||
|
L290 or x42 |
≤ |
≤ |
≤ |
≤ |
- |
- |
- |
- |
≤ |
||
|
L320 or X46 |
≤ |
≤ |
≤ |
≤ |
- |
- |
- |
- |
≤ |
||
|
L360 or X52 |
≤ |
≤ |
≤ |
≤ |
- |
- |
- |
- |
≤ |
||
|
L390 or X56 |
≤ |
≤ |
≤ |
≤ |
- |
- |
- |
- |
≤ |
||
|
L415 or X60 |
≤ |
≤ |
≤ |
≤ |
- |
- |
- |
- |
≤ |
||
|
PSL 2 |
L245Ror BR |
≤ |
≤ |
≤ |
≤ |
≤ |
c |
c |
≤ |
≤ |
|
|
L290R or X42R |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
|
L245N or BN |
≤ |
≤ |
≤ |
≤ |
≤ |
c |
c |
≤ |
≤ |
||
|
L290N or X42N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
|
L320N or X46N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
|
L360N or X52N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
|
L390N or X56N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
|
L415N or X60N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
協商 |
||
|
備注:c: 除非另有協議,否則V和Nb之和應≤ |
|||||||||||
|
標準 |
產品規定類別 |
鋼級 |
屈服強度 |
抗拉強度 |
|
API 5L |
PSL 1 |
L210 or A |
210 |
335 |
|
L245 or B |
245 |
415 |
||
|
L290 or x42 |
290 |
415 |
||
|
L320 or X46 |
320 |
435 |
||
|
L360 or X52 |
360 |
460 |
||
|
L390 or X56 |
390 |
490 |
||
|
L415 or X60 |
415 |
520 |
||
|
PSL 2 |
L245Ror BR |
245~450 |
415~760 |
|
|
L290R or X42R |
290~495 |
415~760 |
||
|
L245N or BN |
245~450 |
415~760 |
||
|
L290N or X42N |
290~495 |
415~760 |
||
|
L320N or X46N |
320~525 |
435~760 |
||
|
L360N or X52N |
360~530 |
460~760 |
||
|
L390N or X56N |
390~545 |
490~760 |
||
|
L415N or X60N |
415~565 |
520~760 |
|
鋼管名義外徑范圍 |
鋼管外徑尺寸 |
涂層類別 |
涂層 |
涂層厚度 |
|
Nominal Diameter Range |
Outside diameters Rang(mm) |
Coating Type |
Coating Layer |
Coating thickness |
|
DN100~600 |
114.3~609.6 |
3PE(三層聚乙烯) |
第一層:環氧粉末(綠色) |
2.0~4.5mm |
|
Inside layer: epoxy(Green) |
||||
|
中間層:膠粘劑(白色) |
||||
|
Mid Layer:adhesive(White) |
||||
|
最外層:聚乙烯(黑色) |
||||
|
Outside layer:polyethylene (Black) |
||||
|
2PE(兩層聚乙烯) |
第一層:膠粘劑 |
2.0~4.5mm |
||
|
Inside layer: adhesive |
||||
|
最外層:聚乙烯 |
||||
|
Outside layer:polythene |
||||
|
DN80~600 |
88.9~609.6 |
FBE(環氧粉末) |
環氧粉末 |
200~400um |
|
Epoxy |
||||
|
2FBE(雙層環氧粉末) |
第一層:環氧粉末(綠色) |
400~800um |
||
|
Inside layer: epoxy(Green) |
||||
|
最外層:加強型環氧粉末(灰綠色) |
||||
|
Outside layer:intensity epoxy(sage green) |
||||
|
DN100~600 |
114.3~609.6 |
3PP(三層聚丙烯) |
第一層:環氧粉末(綠色) |
2.5~3mm |
|
Inside layer: epoxy(Green) |
||||
|
中間層:膠粘劑(白色) |
||||
|
Mid Layer:adhesive(White) |
||||
|
最外層:聚丙烯(白色) |
||||
|
Outside layer:polypropylene(White) |