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- Carbon & Carbon Alloy Steel
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- Heat Efficiency Tubes
- Pipe Fittings
- Pipe Flanges
- Gasket, Stud Bolt &Nut
- Industrial Valves
01
ASTM A554 - Standard Specification for Welded Stainless Steel Mechanical Tubing
Ordering Information
Orders should specify:
- Quantity (length or number of pieces)
- Material (stainless steel grade) – See Section 5.
- Dimensions (OD, wall thickness, shape)
- Tolerance level (Table 1 for standard tolerances)
- Finish (annealed, pickled, polished, etc.)
- Test requirements (hydrostatic, nondestructive electric test, etc.)
- Certification & special packaging (if required)
Steel Grades & Chemical Composition
The standard includes austenitic (300-series) and ferritic (400-series) stainless steels, such as:
- TP 304, TP 304L, TP 316, TP 316L, TP 430, etc.
- Chemical composition must conform to ASTM A959 or other specified standards.
Mechanical Properties
- Tensile Strength, Yield Strength, Elongation: Varies by grade (Table 2).
- Hardness Requirements (if specified).
- Bend Test (for certain applications).
Manufacturing & Workmanship
- Tubes shall be welded and cold-worked (if applicable).
- Seamless equivalent properties can be achieved via additional processing.
- Surface finish must be free of cracks, scale, or defects affecting performance.
Inspection & Testing Requirements
- Hydrostatic or Nondestructive Electric Test (NDET) – Mandatory unless waived.
- Chemical Analysis – Per heat/lot.
- Mechanical Tests – Tensile, hardness, or bend tests as required.
- Visual Inspection – For surface defects.
- Certification – Mill test reports available upon request.
Dimensions & Tolerances
- OD, Wall Thickness, Length, Straightness, Out-of-Roundness tolerances are specified (Table 1).
Certification & Marking
- Mill certification confirming compliance.
- Marking includes manufacturer’s name, grade, size, heat number, and standard (A554).
Supplementary Requirements (Optional)
- S1: Heat Treatment
- S2: Corrosion Testing
- S3: Special Tolerances
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