ASTM A269 304L 316L Impulse Tube BA Surface For Oilfield Service

ASTM A269 304L 316L Impulse Tube BA Surface For Oilfield Service

Specifications Of Stainless Steel Coiled Tubing

How to evaluate the corrosion resistance of 304L and 316L?

In oilfield conditions, impulse tubes are in long term contact with corrosive media containing hydrogen sulfide or chlorides. The 316L material possesses excellent resistance to pitting and stress corrosion cracking due to the addition of molybdenum. MTSCO supplied impulse tubes feature stable nickel and chromium content, which maintains consistent mechanical properties in sour oil and gas environments, effectively extending the maintenance cycle of instrumentation systems.

Single Process Introduction: Bright Annealing

Bright annealing is a precision heat treatment process conducted in a vacuum or controlled reducing atmosphere. This process eliminates internal stress generated by cold drawing while maintaining a highly smooth surface without an oxidation layer. MTSCO produced BA surface impulse tubes feature extremely high inner wall cleanliness, which prevents interference from residual impurities on instrument accuracy.

Laboratory & Testing Capabilities

MTSCO has established an independent modern laboratory capable of providing detailed performance verification for every batch of orders. We support mechanical property tests such as tensile strength, elongation, and yield strength, as well as process performance experiments including flaring, flattening, and hardness tests. MTSCO ensures that every item of testing data is traceable to the original heat number and production process, providing a solid delivery guarantee for high risk conditions like oil and gas drilling.

How can we ensure the safety of Impulse tubes under extreme pressure?

Raw material control: MTSCO conducts 100% PMI testing on every batch of incoming steel strips or tube billets to ensure the material grade strictly complies with ASTM A269 standards.

Full process traceability monitoring: From cold drawing to final product packaging, data collection and photo archiving are performed by professional QC for each process. A unique production tracking card is used to achieve full process closed loop management.

Pre-shipment inspection: Every impulse tube must pass 100% eddy current testing and air tightness testing before leaving the factory. MTSCO inspection standards are usually higher than industry practices to ensure zero leakage in high pressure oilfield conditions.

FAQ

Q1: Do you accept third party quality inspections?

A1: We fully support customer designated third party inspections such as SGS, TUV, and BV. Additionally, we have passed ISO 9001 system certification, and key products comply with PED directives to ensure quality meets international specifications.

Q2: Do you have relevant industry project experience?

A2: Our coiled tubing has long served international energy companies such as OXY, KOC, and ADNOC. It is applied in multiple FPSO projects, downhole oilfield operations, and geothermal power stations, with mature application cases in high pressure and high corrosion conditions.

Q3: What are the packaging methods for coiled tubing? How do you prevent transportation damage?

A3: We provide various packaging options including wooden reels, iron reels, iron and wooden reels, and wooden cases. We use reinforcement with wooden strips and ropes when loading containers to avoid collisions during transportation and ensure the safe arrival of goods.