ASME SA-213/SA-213M/T12 High Corrosion Resistance Alloy Steel Seamless Pipe with

1. Full product portfolio covering forged flanges, seamless alloy pipes, nickel alloy tubes, square hollow sections, shaped tubes, thick-wall pipes, boiler heat-resistant tubes and matching pipe fittings, one-stop metal component supplier
2. Complete material grade system: stainless steel, super austenitic alloy, nickel-based superalloy, heat-resistant Cr-Mo alloy steel, carbon structural steel, duplex steel, precipitation hardening steel
3. Global authoritative manufacturing standards: ASTM A182, ASTM B564, ASTM A312, ASME SA-335, SA-213, ASTM B167, EN, API, PED compliant for global engineering projects
4. Diversified forming processes: hot forging, cold drawing, hot rolling, seamless extrusion, ERW/SAW welding, CNC precision machining per customer technical drawings
5. Ultra-wide specification coverage: OD 1/8''–48'', wall thickness SCH5~XXS, custom length up to 23m; round, square, rectangular, special shaped tubular & circular flange blanks available
6. Multiple surface treatments: pickling, BA/HL/No.4 polishing, black anti-rust paint, 3PE coating, hot galvanizing, machining bright finish
7. Strict multi-item non-destructive testing: UT, eddy current, hydrostatic test, tensile/hardness test, spectral composition inspection before delivery
8. Custom deep processing service: cutting, drilling, perforating, flange welding, gear cutting, turning/milling/grinding for finished machinery parts

This full series metal pipe, fittings and forged flanges integrate stainless steel, nickel superalloy, heat-resistant alloy steel and carbon steel products, covering all core pipeline supporting components required by chemical, petrochemical, power, marine, aerospace and boiler industries.

Our core product categories include:

1. Forged Flanges: 321 stainless steel flange (ASTM A182 F321), Inconel 625 nickel alloy flange (ASTM B564), blind flange, weld neck flange, large-diameter ring flange; titanium-stabilized high-temperature resistant forging structure
2. Corrosion-Resistant Alloy Tubes: Alloy 28 (N08028 / 1.4563 / Sanicro 28) super austenitic seamless pipe, ASTM B167 nickel alloy tube, 304/316L/904L stainless pipe
3. Heat-Resistant Alloy Steel Pipe: ASME SA-335 P11/P22/P91, SA-213 T12, A519 seamless alloy pipe for boiler, superheater and high-pressure pipeline
4. Carbon Structural Pipe: ASTM A500 A36 square tube, SS400 rectangular hollow section, large-diameter thick-wall carbon steel pipe
5. Special Shaped Tubing: Cold drawn precision shaped tube, flower tube, perforated tube, hollow thick-wall bar

All products adopt integrated forging & seamless forming technology with uniform internal metallographic structure. We support full customization of size, tolerance, surface finish and machining dimension, to meet high-temperature, high-pressure, strong chloride/acid corrosion and marine offshore severe working environments.

• Titanium-stabilized austenitic stainless forged flange material
• Excellent intergranular corrosion resistance after long-term high-temperature service
• Stable structural integrity under continuous working temperature up to 800°C
• Higher mechanical strength than cast flanges via hot forging process, ideal for high-temperature furnace & thermal pipeline connections

• Ni-Cr-Mo premium superalloy for extreme corrosion & high temperature dual demand
• Sustains stable mechanical properties at maximum 980°C high temperature, outstanding oxidation resistance
• Superior resistance to seawater, chloride ions, mixed inorganic/organic acids; perfect for offshore sour gas equipment
• Universal weldability and easy CNC machining for complex flange & fitting structures

• Ultra-high Cr-Ni-Mo alloy (26-28%Cr, 30-34%Ni, 3-4%Mo) seamless pipe material
• Specialized for sulfuric acid, phosphoric acid medium containing chloride/fluoride impurities
• Excellent stress corrosion cracking resistance, better localized corrosion performance than Incoloy 825, cost alternative to Inconel 625 for sour gas projects
• Balanced ductility and weldability for chemical plant & offshore pipeline systems

• Chromium-molybdenum alloy structural steel for boiler, power station high-temperature high-pressure pipelines
• Great high-temperature creep resistance and anti-oxidation performance
• Minimum tensile strength 415MPa, yield strength ≥205MPa, elongation ≥30%
• Compatible with hot galvanizing, 3PE anti-corrosion coating for energy industry fluid delivery

• Low carbon structural square/rectangular hollow section material
• Good cold forming, welding performance, economical cost for architectural structure, general mechanical frames
• Optional black paint, hot galvanizing surface anti-rust treatment

Core alloy: Cr 17-19%, Ni 9-12%, Ti ≥5*C, low carbon, balanced manganese & silicon, controlled low sulfur/phosphorus

We supply full series matching raw materials for pipes, flanges, fittings and machined components covering all industrial working conditions:

1. Austenitic Stainless Steel: 304, 316L, 321, 310S, 904L, 254SMo, Alloy 28, XM-19
2. Duplex Stainless Steel: 2205, 2507, S32750, F51/F55/F60
3. Nickel-Based Corrosion & Heat Resistant Alloys
   • Pure Nickel: 200, 201
   • Monel: 400, K-500
   • Inconel: 600, 625, 718, X-750
   • Hastelloy: C22, C276, B3, X
   • Incoloy: 800H, 825, 925
4. Heat Resistant Alloy Steel: SA-335 P11/P12/P22/P91, SA-213 T5/T11/T12/T22, 12CrMo, 15CrMo, 4140
5. Carbon Structural Steel: A36, SS400, A500 Gr.A/B/C, A106 Gr.B, 10#, 20#
6. Martensitic/Ferritic Stainless Steel: 410, 430, XM-27

Covers forged flanges, seamless pipes, square tubes, special shaped tubing and supporting fittings; no need for multi-supplier sourcing to save procurement cost & delivery cycle.

Multi-grade material matrix: stainless steel for mild corrosion, Alloy 28/Inconel for acid/chloride severe environments, Cr-Mo alloy steel for boiler high-pressure thermal pipelines, covering all extreme working scenarios.

Hot forging eliminates casting defects; seamless pipe avoids welding leakage risk, uniform metallographic structure ensures long-term safety under high pressure & temperature.

Custom OD, wall thickness, length, flange sealing face, bolt hole layout; support drawing-based CNC deep machining, various surface anti-corrosion coating options.

All raw materials pass spectral inspection; finished goods undergo UT, eddy current, hydrostatic pressure and mechanical property testing, with complete ISO/PED/API certification.

All grades support cutting, bending, welding and precision CNC processing, convenient for on-site pipeline assembly and mechanical component manufacturing.

Waterproof inner polybag + wooden case/pallet outer packing; bundled marking & pipe end plastic caps to prevent rust and collision damage during long-distance global shipping.

• Power & boiler industry: High-temperature superheater tubes, furnace pipeline flanges, SA-335 alloy steel pressure piping
• Chemical & pharmaceutical plant: Alloy 28 acid medium delivery pipe, Inconel 625 reactor connecting flanges
• Offshore marine & desalination: Seawater resistant nickel alloy tubes, anti-chloride stainless steel pipe fittings
• Petrochemical & sour gas field: High-corrosion seamless tubing, high-temperature forged flanges
• Aerospace & military: Precision nickel alloy tubular components, heat-resistant pipeline fittings
• Architectural & mechanical manufacturing: A36/SS400 square hollow section frames, structural support pipes
• Waste gas desulfurization & pickling workshop: Strong corrosion resistant super alloy pipeline systems

We provide integrated forging and precision machining services, and can produce finished components strictly according to customer drawings:

• Turning, milling, planing, drilling, boring, grinding
• Gear cutting, CNC precision machining
• Sizing cutting, surface treatment and finishing

We have supplied a wide range of forged and machined parts including shafts, cylinders, hollow bars, pistons, tube sheets, rings and disc bearings to customers worldwide.

We have a professional QC inspection team and complete testing equipment to ensure stable and reliable product quality:

• Ultrasonic testing (UT) for internal defects
• Tensile and hardness testing for mechanical properties
• High-precision dimensional measurement
• Spectrometer for chemical composition verification
• Metallographic microstructure inspection

Every batch of products undergoes strict inspection before delivery to meet the quality requirements of various engineering projects.

• Inner packaging: waterproof polybag for moisture and dust protection
• Outer packaging: reinforced wooden case / wooden pallet, suitable for long-distance international transportation
• Custom packaging solutions available upon request

Normally 10 – 45 days after receipt of advance payment

Exact delivery time depends on order quantity, specification complexity and machining requirements