What Are ASME Material Specifications?

ASME Material Specifications define requirements for materials used in applications covered by the applicable ASME codes and engineering standards. Depending on the specification, these requirements can include chemical composition, mechanical properties, manufacturing processes, heat treatment, testing and inspection.

Within ASME Boiler and Pressure Vessel Code Section II, ferrous material specifications generally use the SA designation, while nonferrous material specifications generally use the SB designation. Many are based on, or closely related to, ASTM material specifications. However, the applicable code edition, material grade, product form and project requirements must be verified before treating two specifications as equivalent.

Kamal Steels supplies stainless steel pipes and tubes in various grades, sizes and product forms according to applicable customer and project requirements. Buyers can enquire about material specifications, availability, testing and documentation for their projects.

ASME Material Requirement What It Covers
Material Grade & Chemical Composition Defines the required material grade and applicable chemical composition limits.
Mechanical Properties & Testing Covers required strength, mechanical properties, testing methods and acceptance criteria.
Manufacturing & Heat Treatment Specifies applicable manufacturing processes, forming methods and heat-treatment requirements.
Dimensions & Product Requirements Defines product form, dimensions, sizes, wall thickness and other applicable requirements.
Inspection, Documentation & Traceability Covers inspection, certification, material identification, documentation and traceability.
ASME Material Specifications

How ASME Relates to ASTM

ASTM develops material and product standards, while ASME uses many ASTM specifications within its Boiler and Pressure Vessel Code and related requirements. As a result, the same material specification may be referenced using both ASTM and ASME designations.

Where an ASTM Specification is adopted or listed by ASME, it may appear under the corresponding SA or SB designation. The applicable ASME edition, specification, grade, product form, and supplementary requirements should always be verified for the specific project.

ASTM Specification ASME Specification
ASTM A312 ASME SA312
ASTM A213 ASME SA213
ASTM A269 ASME SA269
ASTM A249 ASME SA249
ASTM A358 ASME SA358
ASTM A270 ASME SA270
ASTM A554 ASME SA554
ASTM B163 ASME SB163
ASTM B167 ASME SB167

ASME Material Specification Chart

The following chart summarizes commonly referenced ASME material specifications for stainless steel pipes, tubes, and selected nickel alloy products.

ASME Specification Product / Material Coverage Common Applications
ASME SA312 Stainless Steel Pipe Austenitic stainless steel pipe for applicable general, high-temperature and corrosive services
ASME SA213 Boiler & Heat-Exchanger Tubes Seamless ferritic and austenitic alloy-steel boiler, superheater and heat-exchanger tubes
ASME SA269 General Stainless Steel Tubing Austenitic stainless steel tubing for general service
ASME SA270 Sanitary Stainless Steel Tubing Food, pharmaceutical, and sanitary applications
ASME SA249 Welded Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger and Condenser Tubes Boilers, superheaters, heat exchangers and condensers
ASME SA554 Welded Stainless Steel Mechanical Tubing Mechanical, structural and ornamental applications
ASME SB163 Nickel and Nickel-Alloy Seamless Pipe, Tube and Related Products Heat exchangers, condensers and applicable industrial services
ASME SB167 Nickel-Chromium-Iron Alloys Seamless Pipe and Tube High-temperature and corrosion-resistant applications

Kamal Steels supplies stainless steel pipes and tubes in various grades, sizes, and product forms according to applicable customer and project requirements. Buyers should confirm the required specification, grade, size, manufacturing type, testing, and documentation before placing an order.

How to Choose the Right ASME Material Specification

Selecting the correct ASME material specification requires consideration of the product type, material grade, manufacturing method, service conditions, testing requirements, and project specifications. The following factors can help buyers, engineers, and procurement teams identify the appropriate specification.

  • 01. Product Type
    Identify whether the requirement is for a pipe, tube, fitting, plate, or another product form.
  • 02. Material Grade
    Select the required stainless steel, alloy steel, nickel alloy, or other specified material grade.
  • 03. Manufacturing Method
    Confirm whether seamless, welded, cold-worked, or another manufacturing form is required.
  • 04. Service Conditions
    Consider operating temperature, pressure, corrosion, fluid characteristics, and application requirements.
  • 05. Testing Requirements
    Review the required mechanical, chemical, nondestructive, hydrostatic, and other applicable tests.
  • 06. Project Specification
    Confirm the required ASME/ASTM specification, applicable edition, supplementary requirements, and project standards.

Why ASME Material Specifications Are Important

Using the correct material specification helps ensure that the supplied product meets the required technical, manufacturing, testing, and documentation requirements. This is particularly important for industrial piping, pressure equipment, heat exchangers, and other critical applications.

Material & Manufacturing

  • Material identification
  • Chemical composition requirements
  • Mechanical property requirements
  • Manufacturing requirements
  • Heat treatment requirements

Quality & Compliance

  • Testing and inspection
  • Material traceability
  • Quality documentation
  • Project specification compliance
  • Engineering requirements

Frequently Asked Questions

Depending on the specification, it may cover chemical composition, mechanical properties, manufacturing, heat treatment, dimensions, testing and acceptance requirements.

They help engineers and procurement teams specify materials that meet the requirements of the applicable code, design and service conditions.

SA designations generally identify ferrous material specifications in ASME Section II, Part A. SB designations generally identify nonferrous material specifications in Part B.

Not automatically. Confirm the applicable ASME code edition, specification, grade, product form and project requirements before accepting an ASTM designation as equivalent.

Confirm the product type, material grade, seamless or welded construction, dimensions, design conditions and governing project code with the responsible engineer.

Applicable specifications can include chemical analysis, mechanical tests, heat treatment, nondestructive examination and other requirements. The exact tests depend on the specification and order.

Documentation requirements depend on the applicable code, purchase order and project specifications. Confirm the required material test reports and traceability before ordering.

Yes. Pipe, tubing, fittings, plate and other product forms can fall under different specifications, even when the base alloy is similar.

Yes. The governing code edition and any applicable addenda or project-specific requirements should be confirmed before the material is specified or accepted.

Kamal Steels can assist buyers with product identification, grade and size enquiries, applicable specification details, availability and documentation requirements. Final code compliance should be confirmed by the project's responsible engineer.

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