API 5L石油管線直縫鋼管技術參數
執行標準:
API SPEC 5L
用途:
用于石油、天然氣工業中的氣、水、油輸送,用于油井中抽取石油或天然氣。
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 |
API SPEC 5L 化學成分
|
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 GB/T9711.2 |
PSL 1 |
A or L210 |
≤0.22 |
≤0.90 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 |
B or L245 |
≤0.28 |
≤1.20 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
x42 or L290 |
≤0.28 |
≤1.30 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X46 or L320 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X52 or L360 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X56 or L390 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
X60 or L415 |
≤0.28 |
≤1.40 |
≤0.030 |
≤0.030 |
- |
- |
- |
- |
≤0.25 | ||
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 |
≤1.20 |
≤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 |
協商 | ||
備注:c: 除非另有協議,否則V和Nb之和應≤0.06%。 | |||||||||||
API SPEC 5L 力學性能
標準 |
產品規定類別 |
鋼級 |
屈服強度 |
抗拉強度 |
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 | ||
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 |
防腐加工具體參數
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) |
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) | ||||
外層:聚乙烯(黑色) | ||||
Outside layer:polyethylene (Black) | ||||
2PE(兩層聚乙烯) |
一層:膠粘劑 |
2.0~4.5mm | ||
Inside layer: adhesive | ||||
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) |
一層:環氧粉末(綠色) |
400~800um | ||
Inside layer: epoxy(Green) | ||||
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) |
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) | ||||
外層:聚丙烯(白色) | ||||
Outside layer:polypropylene(White) |
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