ASME SA-213/SA-213M/T12 High Corrosion Resistance Alloy Steel Seamless Pipe with Versatile Applications and Customizable Dimensions

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