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ASTM B622/B626 Hastelloy B2 Tubes

ASTM B622/B626 Hastelloy B2 Tube
Sizes: 1/8" OD to 8" OD (3.18mm to 203.2mm)
WT (Thickness): 0.5mm to 12mm (Sch 5S to Sch 160)
Type: Seamless (ASTM B622), Welded (ASTM B626)
Standard: ASTM B622, ASTM B626, ASME SB622
Length: Standard 6m, Cut-to-Length, Precision Pieces
Surface Finish: Solution Annealed (Mandatory)
Ends: Plain Ends, Beveled Ends
Origin: Global Stock: USA, Germany, Japan, India
goldenislands.com.sa

Golden Steel Material is a specialized Hastelloy B2 (UNS N10665) Tubes Supplier in Saudi Arabia, engineered specifically for the most punishing chemical processing environments. Hastelloy B2 is a nickel-molybdenum alloy uniquely formulated to deliver exceptional resistance to pure Hydrochloric Acid (HCl) at all concentrations and temperatures. By eliminating the oxidizing elements that compromise other alloys, this material stands as the definitive solution for reducing acid service, where standard austenitic stainless steels would suffer rapid, catastrophic failure.

As a premier Hastelloy B2 seamless and welded tube stockist, we supply tubing manufactured to precise ASTM B622 (Seamless) and ASTM B626 (Welded) standards. Hastelloy B2’s high molybdenum content grants it superior immunity to pitting, crevice corrosion, and stress-corrosion cracking in reducing environments. Crucially, our tubes are supplied in a solution-annealed condition, a vital metallurgical requirement to minimize carbide precipitation during welding. This ensures that your piping systems retain their full corrosion resistance in the heat-affected zones, preventing the intergranular attack common in inadequately processed industrial tubing.

We serve as a trusted Hastelloy B2 Tubes exporter in Saudi Arabia, providing critical infrastructure components for chemical manufacturing, petrochemical refining, and high-temperature catalyst recovery units across the Jubail and Yanbu industrial clusters. Every tube is supported by MTC EN 10204 3.1 certification and undergoes stringent quality protocols, including hydrostatic validation, ultrasonic testing, and PMI (Positive Material Identification). When your application requires an alloy that can survive the harshest reducing acids, our team delivers the technical-grade integrity needed to maintain maximum uptime and operational safety.



ASTM B622/B626 Hastelloy B2 Tubes Features

  • » Certification: MTC EN 10204 3.1 & NABL certified
  • » Standards: Compliant with ASTM B622 (Seamless) & ASTM B626 (Welded)
  • » Reducing Acid Immunity: Exceptional resistance to Hydrochloric (HCl) and Sulfuric (H2SO4) acids
  • » Solution-Annealed: Supplied in solution-annealed condition to prevent weld-induced carbide precipitation
  • » Nickel-Moly Base: Optimized Ni-Mo chemistry for extreme reducing environments
  • » Testing: 100% Hydrostatic, Ultrasonic, and PMI (Positive Material Identification)
  • » Local Stock: Ready supply in Riyadh, Dammam, and Jubail industrial clusters
  • » Fabrication Ready: Custom cutting, precision beveling, and surface finishing

ASTM B622/B626 Hastelloy B2 Tubes Specification

Product Identity

  • Alloy: Hastelloy B2
  • UNS: N10665
  • Standards: ASTM B622 (Seamless), B626 (Welded)
  • ASME: SB622 / SB626

Ni-Mo Composition

  • Nickel (Ni): ~66% (Balance)
  • Molybdenum (Mo): 26.0% – 30.0%
  • Significance: High Mo content provides near-immunity to pure HCl.

Reducing Acid Service

  • Primary Target: Pure Hydrochloric Acid (HCl).
  • Capability: Excellent in pure H2SO4 and reducing organic acids.
  • Constraint: Not suitable for oxidizing environments.

Solution Annealed

  • Process: Controlled thermal treatment.
  • Advantage: Prevents harmful carbide precipitation during welding/fabrication.

Mechanical Strength

  • Tensile Strength: ~760 MPa (Typical)
  • Elongation: ~40% (High Ductility)
  • Benefit: Excellent cold-forming and bending capability.

Quality Assurance

  • Mandatory: PMI (Positive Material Identification).
  • Certification: EN 10204 3.1 Traceability (Heat/Lot).
  • Integrity: 100% Hydrostatic testing.

ASTM B622/B626 Hastelloy B2 Tubes Detailed Specifications

Category Specifications
Tube Type Seamless, ERW, Welded, Fabricated, LSAW, CDW
Available Grades B2 (UNS N10665 / 2.4617), C276 (UNS N10276 / 2.4819),
C22 (UNS N06022 / 2.4602), C4 (UNS N06455),
C2000, Hastelloy X
Size Range (OD) 6.35 mm to 152 mm
Wall Thickness 0.5 mm to 60 mm (SWG 10, 12, 14, 16, 18, 20)
Length Standard lengths, Cut-to-length (Max 20 meters)
ASTM / ASME Standards B622, B619, B626, B161, B163, B167, B444, B443, B729, B677, B722
International Standards GB, ISO, EN, JIS, Russian GOST
Manufacturing Process Cold Drawn, Solution Annealed
Condition Hard (Y) / Soft (M)
Surface Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), Cold Drawn Bright
End Finish Plain End, Beveled End, Threaded
Value Added Services Draw & Expansion, Bending, Machining
Testing Terms Ultrasonic, Electric Non-Destructive, Hydrostatic, Eddy Current,
Flattening, Flaring, Bend, Tensile Properties, Chemical Analysis,
Hardness, I.C. Test (Intergranular Corrosion), Visual Surface Inspection
Certification ISO, EN 10204 3.1 / 3.1B / 3.2, PED, DNV, TUV, Govt. Approved Lab
Marking Standard, Grade, OD, Thickness, Length, Heat No. (or per customer request)
Urgency Support for Shutdown, Emergency, and Project Rush Demands

Types of ASTM B622/B626 Hastelloy B2 Tubes

Hastelloy B2 Precision Tubes

Hastelloy B2 Precision Tubes

Hastelloy B2 Heat Exchanger Tube

Hastelloy B2 Heat Exchanger Tube

Hastelloy B2 Cold Drawn Seamless Tube

Hastelloy B2 Cold Drawn Seamless Tube

Hastelloy B2 Extruded Seamless Tube

Hastelloy B2 Extruded Seamless Tube

Hastelloy B2 Round Tube

Hastelloy B2 Round Tube

Hastelloy B2 Capillary Tube

Hastelloy B2 Capillary Tube

Other types of ASTM B622/B626 Hastelloy B2 Tubes

  • Hastelloy B2 Aerospace tubes
  • Hastelloy B2 Oil and gas tubes
  • Hastelloy B2 Nuclear tubes
  • Hastelloy B2 Chemical process tubes
  • Hastelloy B2 Medical tubes
  • Hastelloy B2 Heat exchanger tubes
  • Hastelloy B2 Control lines
  • Hastelloy B2 Umbilicals
  • Hastelloy B2 Hydraulic tubes
  • Hastelloy B2 High pressure tubes
  • Hastelloy B2 Nuclear Fuel tubes
  • Hastelloy B2 EFW Tubes Suppliers
  • Hastelloy B2 Instrumentation tubes
  • Hastelloy B2 Electropolished Pipes
  • Hastelloy B2 SCH 40 Pipe
  • Hastelloy B2 SCH 80 Pipe
  • Hastelloy B2 Condenser Tubes
  • Hastelloy B2 Oil & Gas Tubing
  • Hastelloy B2 Tubing
  • Hastelloy B2 Tube
  • Hastelloy B2 Pipe
  • Hastelloy B2 Seamless pipe
  • Hastelloy B2 Seamless tube
  • Hastelloy B2 Welded pipe
  • Hastelloy B2 Welded tube
  • Hastelloy B2 Protection tube
  • Hastelloy B2 Cold Drawn Seamless pipe
  • Hastelloy B2 Electric resistance welded (ERW)
  • Hastelloy B2 Drawn over mandrel (DOM)
  • High Quality Hastelloy B2 Seamless Pipe
  • Hastelloy B2 Square Pipe
  • Hastelloy B2 Round Pipe
  • Hastelloy B2 Rectangular Pipe
  • Hastelloy B2 Triangle Pipe
  • Hastelloy B2 Hexagonal Pipe
  • Hastelloy B2 Hollow Tubes Suppliers
  • Hastelloy B2 thermocouple Pipe
  • Hastelloy B2 Cold Drawn Pipe
  • Hastelloy B2 ERW Pipe
  • Hastelloy B2 Colour Coated Pipe
  • Hastelloy B2 Welded Pipe
  • Hastelloy B2 Secondary & Surplus Pipe
  • Hastelloy B2 Outside Polished Pipe
  • ASTM/ASME B167 Hastelloy B2 Capillary Pipe
  • Hastelloy B2 EFW Pipe
  • Hastelloy B2 Boiler Tubes
  • Hastelloy B2 Cold Drawn Seamless tube
  • Hastelloy B2 Extruded Seamless Pipe
  • Hastelloy B2 Extruded Seamless Tube
  • Hastelloy B2 Round Tube
  • Hastelloy B2 Heat Exchanger Tube
  • Hastelloy B2 Square Tube
  • Hastelloy B2 Coiled Tubing
  • Hastelloy B2 Rectangular Tube
  • Hastelloy B2 Tubing bends
  • Alloy B2 Pipe/ Tube
  • Hastelloy B2 Electropolished Pipe & Tubes
  • Hastelloy B2 Hollow Pipe Manufacturer & Suppliers
  • ASTM/ASME B167 Hastelloy B2 Capillary Tubes
  • Hastelloy B2 U Shaped Pipe
  • Hastelloy Alloy B2 Pipe/ Tube
  • Hastelloy B2 Tubing
  • Hastelloy B2 Oil Pipe
  • WERKSTOFF NR. 2.4617 Pipe
  • UNS N10665 Pipe
  • Hastelloy B2 Triangle Tube
  • Hastelloy B2 Secondary & Surplus Tube
  • Hastelloy B2 High-strength capillary tubing
  • Hastelloy B2 Cold Drawn Tube
  • Hastelloy B2 U Shaped Tube
  • Hastelloy B2 SCH 40 Tube
  • Hastelloy B2 SCH 80 Tube
  • Hastelloy B2 high temperature alloy tubing
  • Hastelloy B2 Tubería
  • Hastelloy B2 Tubo
  • Hastelloy B2 Precision tubes
  • Hastelloy B2 Capillary tube
  • Hot finished seamless Hastelloy B2 tubing (HFS)
  • Cold drawn seamless Hastelloy B2 tubing (CDS)

ASTM B622/B626 Hastelloy B2 Tubes Chemical Composition

Element Composition Percentage (%)
Nickel (Ni) Balance
Molybdenum (Mo) 26.0 – 30.0
Iron (Fe) 2.0 Max
Chromium (Cr) 1.0 Max
Cobalt (Co) 1.0 Max
Manganese (Mn) 1.0 Max
Silicon (Si) 0.1 Max
Carbon (C) 0.02 Max
Phosphorus (P) 0.04 Max
Sulfur (S) 0.03 Max

ASTM B622/B626 Hastelloy B2 Tubes Mechanical Properties

Physical Properties

Property Value / Specification
Density 9.2 g/cm³
Melting Point 1370 °C (2500 °F)
Tensile Strength 110,000 psi (760 MPa)
Yield Strength (0.2% Offset) 51,000 psi (350 MPa)
Elongation 40%

ASTM B622/B626 Hastelloy B2 Tube Schedule Chart & Wall Thickness

NPS (in) Outside Diameter (in) Hastelloy B2 Wall Thickness per Schedule (in)
SCH 10 SCH 20 SCH 30 SCH STD SCH 40 SCH 60 SCH XS SCH 80 SCH 100 SCH 120 SCH 140 SCH 160 SCH XXS
1/8 0.405 - - - 0.068 0.068 - 0.095 0.095 - - - - -
1/4 0.540 - - - 0.088 0.088 - 0.119 0.119 - - - - -
3/8 0.675 - - - 0.091 0.091 - 0.126 0.126 - - - - -
1/2 0.840 - - - 0.109 0.109 - 0.147 0.147 - - - 0.187 0.294
3/4 1.050 - - - 0.113 0.113 - 0.154 0.154 - - - 0.219 0.308
1 1.315 - - - 0.133 0.133 - 0.179 0.179 - - - 0.250 0.358
1 1/4 1.660 - - - 0.140 0.140 - 0.191 0.191 - - - 0.250 0.382
1 1/2 1.900 - - - 0.145 0.145 - 0.200 0.200 - - - 0.281 0.400
2 2.375 - - - 0.154 0.154 - 0.218 0.218 - - - 0.344 0.436
2 1/2 2.875 - - - 0.203 0.203 - 0.276 0.276 - - - 0.375 0.552
3 3.500 - - - 0.216 0.216 - 0.300 0.300 - - - 0.438 0.600
3 1/2 4.000 - - - 0.226 0.226 - 0.318 0.318 - - - - -
4 4.500 - - - 0.237 0.237 - 0.337 0.337 - 0.438 - 0.531 0.674
5 5.563 - - - 0.258 0.258 - 0.375 0.375 - 0.500 - 0.625 0.750
6 6.625 - - - 0.280 0.280 - 0.432 0.432 - 0.562 - 0.719 0.864
8 8.625 - 0.250 0.277 0.322 0.322 0.406 0.500 0.500 0.594 0.719 0.812 0.906 0.875
10 10.750 - 0.250 0.307 0.365 0.365 0.500 0.500 0.594 0.719 0.844 1.000 1.125 1.000
12 12.750 - 0.250 0.330 0.375 0.406 0.562 0.500 0.688 0.844 1.000 1.125 1.312 1.000
14 14.000 0.250 0.312 0.375 0.375 0.438 0.594 0.500 0.750 0.938 1.094 1.250 1.406 -
16 16.000 0.250 0.312 0.375 0.375 0.500 0.656 0.500 0.844 1.031 1.219 1.438 1.594 -
18 18.000 0.250 0.312 0.438 0.375 0.562 0.750 0.500 0.938 1.156 1.375 1.562 1.781 -
20 20.000 0.250 0.375 0.500 0.375 0.594 0.812 0.500 1.031 1.281 1.500 1.750 1.969 -
22 22.000 0.250 0.375 0.500 0.375 - 0.875 0.500 1.125 1.375 1.625 1.875 2.125 -
24 24.000 0.250 0.375 0.562 0.375 0.688 0.969 0.500 1.219 1.531 1.812 2.062 2.344 -
30 30.000 0.312 0.500 0.625 0.375 - - 0.500 - - - - - -
32 32.000 0.312 0.500 0.625 0.375 0.688 - - - - - - - -
34 34.000 0.312 0.500 0.625 0.375 0.688 - - - - - - - -
36 36.000 0.312 0.500 0.625 0.375 0.750 - - - - - - - -
42 42.000 - 0.500 0.625 0.375 0.750 - - - - - - - -

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA
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