Supply A199 Grade T11 Seamless Alloy Steel Pipes

ASTM A199 Grade T11 seamless alloy steel pipe manufactured for high-temperature service. Supplied in seamless form and available in several heat-treated conditions (full annealed, isothermal annealed, normalized, quenched and tempered) to meet elevated-temperature strength and toughness requirements.

Key features and benefits:

• Engineered for high-temperature applications such as boiler tubing, superheaters/reheaters, heat exchangers, power-generation and petrochemical equipment.
• Supplied seamless to minimize stress concentrations and improve creep resistance in elevated-temperature service.
• Heat treatment options (full anneal, isothermal anneal, normalise, quench & temper) available to match customer requirements.
• Typical mechanical properties (as supplied): minimum tensile strength ≈ 415 MPa; minimum yield strength ≈ 170 MPa.
• Typical chemistry includes alloying additions such as chromium to provide elevated-temperature strength and corrosion resistance.

Available standards and specifications:

• Manufactured to common international standards: ASTM (including ASTM A199 T11), DIN, EN, JIS, BS, API and GB on request.
• Cross-reference and comparable grades: A53 Gr A, A106 Gr B, ASTM A179, A192 and other national equivalents where applicable.

Dimensions, wall thickness and lengths:

• Outer diameter range: 1/8" up to 36" (inch-based sizes).
• Wall thickness: schedules from SCH5 up to XXS (extra heavy) — custom wall thicknesses available on request.
• Standard packing lengths: typically 8.0 m for 20' container loads; 6.0–12.0 m for 40' containers. Custom cut lengths available.

Quality assurance and inspection:

• Third-party inspection and certifications available: BV, SGS, Lloyd's Register, DNV, CCS and others as required. CE marking and documentation can be provided where applicable.
• Material test certificates, heat-treatment records and dimensional inspection reports are available with shipments.

Supply options and ordering guidance:

• Available in full production runs for project and stock requirements.
• When requesting a quote (RFQ), please specify: required standard/specification, OD, wall thickness or schedule, length, quantity, required heat treatment, and any third-party inspection or certification needs.

This product is offered for industrial and OEM purchasers seeking reliable, high-temperature alloy seamless piping with flexible supply and inspection options.