Anti-H2S Corrosion Tubing And Casing
- BEILAI
- CHINA
SOUR SERVICE TUBING AND CASING
Non API products manufactured according to relevant spec, standards and clients technical requirements.
Anti-H2S corrosion tubing and casing
APPLICABLE STANDARDS
API SPEC 5CT Specification for casing and Tubing.
ANSI/NACE MR0175 Metals sulfide stress cracking and stress corrosion resistance in sour oilfield environment.
ANSI/NACE TM0177 Laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in H2S environment.
ISO 15156 Petroleum and natural gas industries-material for use in H2S containing environments in oil and gas production.
ISO 13680 Petroleum and natural gas industries corrosion-resistant seamless tubes for use as casing , tubing and coupling stock technical delivery conditions third edition.
Mechanical Property
Grade | Product Name | Yield strength(MPa) | Tensile Strength(Mpa) | Elogation | Charpy V-impact/J | Max. Hardness/(HRC) | |
Min | Max | Min | |||||
80 | BL80S | 552 | 655 | 655 | Calculated according to API 5CT formula | According to API 5ct | 80 |
BL80SS | |||||||
90 | BL90S | 621 | 724 | 689 | 90 | ||
BL90SS | |||||||
95 | BL95S | 655 | 758 | 724 | 95 | ||
BL95SS | |||||||
110 | BL110S | 758 | 862 | 793 | 110 | ||
Corrosion Resistance
Product Name | Requirements of anti- corrosion Nature | |
H2S Stress Corrosion Cracking Test (SSC) | ||
Solution A according to NACE TM 0177 A, without crack after 720 Hours | ||
Ø6.35/Sample | Ø3.81/Sample | |
Loading SMYS value | ||
BL80S, BL90S, BL95S | 85% | 76% |
BL80SS, BL90SS, BL 95SS | 90% | 80% |
BL110S | 80% | 72% |
BL110SS | 85% | 76% |
Note: Sulfur resistance grade ‘S” Reefers to normal sulfur resistance; “SS” indicates high sulfur resistance
