标准:
API 5L
API 5CT
用途:
主要生产钢管牌号:
GrB~X80、L80、K55、P110、Q125
组距:
钢管种类 |
外径(D) |
壁厚(S) |
热轧管 |
219~1200 |
8~130 |
力学性能:
标准 |
牌号 |
抗拉强度(MPa) |
屈服强度(MPa) |
伸长率(%) |
API 5CT |
L80 |
552~655 |
≥655 |
见API 5CT表C6 |
K55 |
379~552 |
≥655 |
见API 5CT表C6 |
|
P110 |
758~965 |
≥862 |
见API 5CT表C6 |
|
Q125 |
862~1034 |
≥931 |
见API 5CT表C6 |
|
API 5L |
X52 |
360~530 |
460~760 |
见API 5L表7 |
X60 |
415~565 |
520~760 |
见API 5L表7 |
|
X65 |
450~600 |
535~760 |
见API 5L表7 |
|
X70 |
485~635 |
570~760 |
见API 5L表7 |
|
X80 |
555~705 |
625~825 |
见API 5L表7 |
化学成分:
标准 | 牌号 | 化学成分(%) | |||||||||||
C | Si | Mn | P | S | V | Nb | Ti | Cr | Ni | Cu | Mo | ||
API | L80 | ≤0.43 | ≤0.45 | ≤1.90 | ≤0.030 | ≤0.030 | ≤0.25 | ≤0.35 | |||||
K55 | ≤0.030 | ≤0.030 | |||||||||||
P110 | ≤0.030 | ≤0.030 | |||||||||||
Q125 | ≤0.35 | ≤1.35 | ≤0.020 | ≤0.010 | ≤1.50 | ≤0.99 | ≤0.85 | ||||||
API 5L | X52 | ≤0.18 | ≤0.45 | ≤1.50 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ||||
X60 | ≤0.18 | ≤0.45 | ≤1.70 | ≤0.025 | ≤0.015 | 见API 5L表5 | 见API 5L表5 | 见API 5L表5 | |||||
X65 | ≤0.18 | ≤0.45 | ≤1.70 | ≤0.025 | ≤0.015 | 见API 5L表5 | 见API 5L表5 | 见API 5L表5 | |||||
X70 | ≤0.18 | ≤0.45 | ≤1.80 | ≤0.025 | ≤0.015 | 见API 5L表5 | 见API 5L表5 | 见API 5L表5 | |||||
X80 | ≤0.18 | ≤0.45 | ≤1.90 | ≤0.025 | ≤0.015 | 见API 5L表5 | 见API 5L表5 | 见API 5L表5 |