ASTM B619
ASTM B619 Basic Info
ASTM B619 is suitable for welded nickel-chromium-iron alloys (UNS N06600, N06603, N06690, and N06025) pipe for general corrosion-resisting and heat-resisting applications. It’s commonly used in industries such as chemical processing, petrochemical, and power generation where resistance to corrosive environments and high temperatures is crucial. The standard ensures the quality and reliability of welded pipes, making them suitable for conveying fluids or gases in demanding industrial settings.
Characteristics of ASTM B619
- Corrosion Resistance: ASTM B619 specifies materials that offer excellent resistance to corrosion in various corrosive environments, including acidic and alkaline conditions.
- High-Temperature Strength: The materials covered by ASTM B619 exhibit high temperature strength, making them suitable for applications where exposure to elevated temperatures is common.
- Diverse Alloy Options: The standard covers a range of nickel and nickel-cobalt alloys, allowing for flexibility in material selection to meet specific application requirements.
- Welded Construction: ASTM B619 primarily focuses on welded pipes, providing guidelines for the fabrication and joining of pipes to ensure structural integrity and leak-tightness.
- Quality Assurance Standards: ASTM B619 outlines stringent requirements for chemical composition, mechanical properties, dimensions, and testing methods to ensure the quality and reliability of the pipes produced.
ASTM B619 Data Sheet
Steel grade names
Dimensions and Tol.
Equivalent steel grades
Chemical composition
Mechanical properties
Fabrication and Welding
Steel grade names
UNS N06222
UNS N10276
UNS N06455
UNS N10665
UNS N10675
UNS N06035
UNS N10001
UNS N0659
UNS N0630
UNS N06200
UNS N0645
Dimensions and Tol.
Outside Diameter (OD):
Specifies the nominal outside diameter of the pipe.
Nominal Wall Thickness:
Indicates the nominal wall thickness of the pipe.
Length:
Defines the nominal length of the pipe, typically in feet or meters.
Roundness Tolerance:
Specifies the permissible deviation from roundness for the pipe’s cross-section.
Straightness Tolerance:
Defines the permissible deviation from straightness for the entire length of the pipe.
End Cut Squareness:
Specifies the permissible deviation from squareness for the pipe ends.
Tolerances on Length:
Provides tolerances for the actual length of the pipe compared to the nominal length.
Tolerances on OD:
Specifies tolerances for the actual outside diameter of the pipe compared to the nominal outside diameter.
Tolerances on Wall:
Provides tolerances for the actual wall thickness of the pipe compared to the nominal wall thickness.
Equivalent steel grades
United States:
Equivalent Grades: Hastelloy C22 (UNS N06022), Hastelloy C276 (UNS N10276)
Standard: ASTM B574 (Bar), ASTM B575 (Plate), ASTM B622 (Tube), ASTM B626 (Pipe)
Germany:
Equivalent Grades: 2.4602 (UNS N06022)
Standard: DIN EN 10088-3
Japan:
Equivalent Grades: NW 6022 (UNS N06022)
Standard: JIS G4305
China:
Equivalent Grades: NS3308 (UNS N06022)
Standard: GB/T 20878-2007
Chemical composition
Composition Range (%) for UNS N06022:
- Carbon (C): 0.010 max
- Manganese (Mn): 0.50 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.020 max
- Chromium (Cr): 20.0 – 22.5
- Molybdenum (Mo): 12.5 – 14.5
- Iron (Fe): 2.0 max
- Cobalt (Co): 2.5 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N10276:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.040 max
- Sulfur (S): 0.030 max
- Chromium (Cr): 14.5 – 16.5
- Molybdenum (Mo): 15.0 – 17.0
- Iron (Fe): 4.0 – 7.0
- Cobalt (Co): 2.5 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N06455:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.010 max
- Chromium (Cr): 23.0 – 25.0
- Molybdenum (Mo): 6.0 – 7.0
- Iron (Fe): 4.0 – 7.0
- Cobalt (Co): 27.0 – 31.0
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N10665:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.020 max
- Chromium (Cr): 1.0 max
- Molybdenum (Mo): 14.5 – 16.5
- Iron (Fe): 4.0 – 7.0
- Cobalt (Co): 0.50 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N10675:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.010 max
- Chromium (Cr): 1.0 max
- Molybdenum (Mo): 15.0 – 17.0
- Iron (Fe): 4.0 – 7.0
- Cobalt (Co): 0.50 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N06035:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.020 max
- Chromium (Cr): 5.0 – 7.0
- Molybdenum (Mo): 5.0 – 7.0
- Iron (Fe): 1.5 – 3.0
- Cobalt (Co): 2.5 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N10001:
- Carbon (C): 0.015 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.010 max
- Chromium (Cr): 16.0 – 18.0
- Molybdenum (Mo): 15.0 – 17.0
- Iron (Fe): 4.0 – 6.0
- Cobalt (Co): 2.5 max
- Copper (Cu): 1.00 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N0659:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.010 max
- Chromium (Cr): 22.0 – 24.0
- Molybdenum (Mo): 15.0 – 17.0
- Iron (Fe): 2.0 max
- Cobalt (Co): 2.5 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N0630:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.010 max
- Chromium (Cr): 14.0 – 16.0
- Molybdenum (Mo): 3.0 – 4.0
- Iron (Fe): 4.0 – 7.0
- Cobalt (Co): 2.5 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N06200:
- Carbon (C): 0.015 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.010 max
- Chromium (Cr): 13.5 – 16.5
- Molybdenum (Mo): 3.0 – 4.5
- Iron (Fe): 4.0 – 7.0
- Cobalt (Co): 2.5 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Composition Range (%) for UNS N0645:
- Carbon (C): 0.010 max
- Manganese (Mn): 1.00 max
- Silicon (Si): 0.08 max
- Phosphorus (P): 0.020 max
- Sulfur (S): 0.010 max
- Chromium (Cr): 28.0 – 31.0
- Molybdenum (Mo): 4.0 – 6.0
- Iron (Fe): 1.5 max
- Cobalt (Co): 0.50 max
- Copper (Cu): 0.50 max
- Titanium (Ti): 0.60 max
- Nickel (Ni): Balance
Mechanical properties
UNS N06022:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N10276:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 40 ksi (275 MPa) min
- Elongation: 40% min
- Hardness: –
UNS N06455:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N10665:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N10675:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N06305:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N10001:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N0659:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N0630:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N06200:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
UNS N06445:
- Tensile Strength: 100 ksi (690 MPa) min
- Yield Strength (0.2% offset): 45 ksi (310 MPa) min
- Elongation: 45% min
- Hardness: –
Fabrication and Welding
Heat Treatment:
- The material shall be furnished in the solution-annealed condition. Heat treatment subsequent to hot working or cold working may be required as a condition of fabrication.
Welding Consumables and Electrodes:
- AWS A5.14 Class ERNiCrMo-3 welding filler metal or AWS A5.11 ENiCrMo-3 welding electrode shall be used.
Welding Processes:
- Shielded metal arc welding, gas tungsten arc welding, gas metal arc welding, and submerged arc welding processes may be used.
Preheat and Interpass Temperatures:
- Preheating and interpass temperatures shall be in accordance with the welding procedure specifications and the AWS D1.1 Structural Welding Code – Steel.
Postweld Heat Treatment (PWHT):
- PWHT may be required as a condition of fabrication, particularly for heavy sections or complex shapes.
Welding Procedures and Qualifications:
- Welding procedures shall be qualified in accordance with applicable ASME or AWS standards, and welders shall be qualified in accordance with AWS B2.10.
Weld Inspection and Testing:
- Welds shall be inspected visually and may require nondestructive examination (NDE) methods such as radiographic testing (RT) or ultrasonic testing (UT).
