Alloy C276 / UNS N10276 Nickel Alloy Seamless Tube

Alloy C276 UNS N10276 Nickel Alloy Seamless Tube ASTM B622 B829

Why Choose MTSCO for Seamless Tubes?

MTSCO specializes in the supply and service of high-performance nickel-based alloy seamless tubes, welded tubes, and matching pipe fittings and flanges. Both the company and its strategic partner factories hold ISO quality system certifications, and the products are certified under PED and M650 standards.

In terms of manufacturing, our facilities are equipped with comprehensive processing capabilities—including cold rolling, cold drawing, solution annealing, and non-destructive testing—and strictly adhere to international standards such as ASTM B622 and ASTM B829.

Furthermore, MTSCO implements end-to-end process management, covering everything from specification confirmation and production scheduling to inspection and shipment. Through efficient collaboration with our factories, we effectively minimize supply chain uncertainties, ensuring the timely delivery of high-quality orders. We are always available to address any questions regarding manufacturing processes, standards, or product suitability.

Specification Table

Product Advantages

· Comprehensive Certifications & Consistent Quality
MTSCO holds ISO and PED certifications, maintaining a robust quality system and ensuring reliable delivery.

· Premium Raw Materials
Raw materials are sourced from major steel mills, guaranteeing superior chemical composition and performance.

· 100% Inspection & Full Traceability
Products undergo 100% inspection, with records and photographs retained to ensure full traceability.

· Comprehensive Technical Support & Documentation
We provide timely technical support and all necessary project documentation.

· High-Standard Surface Treatment
Our surface treatment processes ensure consistent quality, high cleanliness, and an excellent surface finish.

Dimensional & Surface Control

The dimensional precision of small-diameter seamless tubes directly impacts downstream assembly efficiency and system stability. When manufacturing Alloy C276 seamless tubes, MTSCO employs a multi-pass precision cold-rolling process combined with in-line straightening and rigorous testing. This ensures tight dimensional tolerances for outer diameter and wall thickness, thereby significantly reducing the risk of adjustments or rework during on-site installation. We strictly control surface quality through standardized solution annealing and pickling processes, offering various surface finishes to suit different operating conditions:

AP (Annealed and Pickled): Facilitates welding and non-destructive testing; suitable for standard industrial environments.

BA (Bright Annealed): Heat-treated in a protective atmosphere to ensure high internal cleanliness; meets the requirements of high-purity systems.

Polished: Precision post-processing to meet specific aesthetic and application standards.

Customer Case Studies

Product Standard Overview

ASTM B622 primarily applies to seamless pipes and tubes made of nickel-molybdenum-chromium alloys, such as UNS N10276. This standard specifies chemical composition, mechanical properties, dimensional tolerances, manufacturing conditions, and inspection requirements, serving as a key reference for the procurement of Alloy C276 seamless tubing.

ASTM B829 sets general requirements for nickel and nickel alloy seamless pipes and tubes, typically supplementing specifications regarding dimensions, tolerances, sampling, inspection, and quality. For this product, ASTM B622 covers material-specific requirements for Alloy C276, while ASTM B829 provides the general technical requirements for seamless tubing.

FAQ

Q1: What inspections are typically performed on these tubes before shipment?
A1: Standard tests include visual inspection, dimensional checks, PMI (Positive Material Identification), UT (Ultrasonic Testing), ET (Eddy Current Testing), HT (Hydrostatic Testing), mechanical property testing, and chemical composition analysis. Specific testing protocols are confirmed based on ASTM standards and customer technical agreements.

Q2: In what corrosive environments is Alloy C276 tubing suitable?
A2: Alloy C276 is suitable for use in acidic media, chloride-containing environments, and complex chemical processing media. Specific application suitability should be determined by considering factors such as medium composition, temperature, pressure, and equipment design.

Q3: Can third-party inspections be arranged?
A3: Certainly. We fully support on-site inspections by reputable third-party agencies—such as SGS, TUV, or BV—prior to shipment. Our QC team will cooperate closely to ensure a smooth inspection process, giving you greater peace of mind upon receipt of the goods.