NACE MR0175 is an international standard that gives requirements and recommendations for the selection and qualification of metallic materials for service in equipment used in oil and gas production and in natural-gas sweetening plants in H2S-containing environments. Beilai produce Nace MR0175 pipes for H2S-containing environment uasge.
Standards and technical terms of products
API SPEC 5L Specification for line pipe
ISO 3183 Petroleum and natural gas industries-steel pipe for pipeline transportation system.
GB/T9711 Pipe line used for transport system in oil and gas industry
ASME B36.10 Welded and seamless wrought steel pipe
ANSI/NACE MR0175 Metals for sulfide stress cracking and stress corrosion cracking resistance in sour oilfield
ANSI/NACE TM0177 Laboratory testing of metal for resistance to sulfide stress cracking and stress Corrosion cracking in H2S environment
ISO15156 Petroleum and natural gas industries -materials for use in H2S containing environment in oil and gas production
Size
OD: Ø21.3mm- Ø219.1mm, wall thickness:2.77mm-22.23mm
DN(mm) | NPS(in) | OD(mm) | 10 | 20 | 30 | STD/40 | 60 | XS/80 | 100 | 120 | 140 | 160 | XXS |
15 | 1/2 | 21.3 | 2.77 | 3.73 | 4.78 | 7.47 | |||||||
20 | 3/4 | 26.7 | 2.87 | 3.91 | 5.56 | 7.82 | |||||||
25 | 1 | 33.4 | 3.38 | 4.55 | 6.35 | 9.09 | |||||||
32 | 1 1/4 | 42.2 | 3.58 | 4.85 | 6.35 | 9.70 | |||||||
40 | 1 1/2 | 48.3 | 3.68 | 5.08 | 7.14 | 1.015 | |||||||
50 | 2 | 60.3 | 3.91 | 5.54 | 8.74 | 11.07 | |||||||
65 | 2 1/2 | 73.0 | 5.16 | 7.01 | 9.53 | 14.02 | |||||||
80 | 3 | 88.9 | 5.49 | 7.62 | 11.13 | 15.24 | |||||||
90 | 3 1/2 | 101.6 | 5.74 | 8.08 | |||||||||
100 | 4 | 114.3 | 6.02 | 8.56 | 11.13 | 13.49 | 17.12 | ||||||
125 | 5 | 141.3 | 6.55 | 9.53 | 12.70 | 15.88 | 19.05 | ||||||
150 | 6 | 168.3 | 7.11 | 10.97 | 14.27 | 18.26 | 21.95 | ||||||
200 | 8 | 219.1 | 6.35 | 7.04 | 8.18 | 10.31 | 12.70 | 15.08 | 18.26 | 20.62 | 23.01 | 22.23 |
Chemical composition
Grade | Chemical composition/% Max | |||||||
C | Si | Mn | P | S | V | Nb | Ti | |
L245/B | 0.28 | - | 1.20 | 0.030 | 0.030 | - | - | - |
L290/X42 | 0.28 | - | 1.30 | 0.030 | 0.030 | - | - | - |
L320/X46 | 0.28 | - | 1.40 | 0.030 | 0.030 | - | - | - |
L360/X52 | 0.28 | - | 1.40 | 0.030 | 0.030 | - | - | - |
L390/X56 | 0.28 | - | 1.40 | 0.030 | 0.030 | - | - | - |
L415/X60 | 0.28 | - | 1.40 | 0.030 | 0.030 | - | - | - |
L450/X65 | 0.28 | - | 1.40 | 0.030 | 0.030 | - | - | - |
L485/X70 | 0.28 | - | 1.40 | 0.030 | 0.030 | - | - | - |
Note: Date in the composition of PSL1:PSL2 The composition can be negotiated by both parties | ||||||||
Mechanical property requirements
Grade | Yield strength/Mpa | Yield strength/Mpa | Yield ratio | CVN/J | ||||||
PSL1(Min) | PSL2 | PSL1(Min) | PSL2 | PSL1(Min) | PSL2 | |||||
-N,Q | -NS,QS | -N,Q | -NS,QS | -N,Q | -NS,QS | |||||
L245/B | 245 | 245~450 | 245~450 | 415 | 415~655 | 415~655 | - | ≤0.93 | ≤0.93 | ≥27 |
L290/X42 | 2900 | 290~495 | 290~495 | 415 | 415~655 | 415~655 | - | |||
L320/X46 | 320 | 320~525 | 320~525 | 435 | 435~655 | 435~655 | - | |||
L360/X52 | 360 | 360~530 | 360~530 | 460 | 460~760 | 460~760 | - | |||
L390/X56 | 390 | 390~545 | 390~545 | 490 | 490~760 | 490~760 | - | |||
L415/X60 | 415 | 415~565 | 415~565 | 520 | 520~760 | 520~760 | - | |||
L450/X65 | 450 | 450~600 | 450~600 | 535 | 535~760 | 535~760 | - | |||
L485/X70 | 485 | 485~635 | 485~635 | 570 | 570~760 | 570~760 | - | |||
L555/X80 | 555~705 | 625~825 | ≥40 | |||||||
Note:Line pipe for other special service environment will be manufactured based on the negotiation resule of both sides. | ||||||||||
