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Technical Specifications

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ENA Capability by Location

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Extrusion North America (ENA) - Interpretations of Technical Specifications for Use with Certified Test Reports

PLEASE NOTE THAT THE CUSTOMER’S PURCHASE ORDER SUBMITTED TO EXTRUSION NORTH AMERICA (ENA) MAY ONLY REFERENCE THOSE SPECIFICATIONS DESIGNATED BELOW WITH AN ASTERISK (*).  IN ADDITION, ENA WILL ONLY ACCEPT THE LATEST REVISION OF THE APPLICABLE SPECIFICATION.  PROCESS VARIABILITY IS DISCUSSED IN MORE DETAIL BELOW.  FURTHER EXCEPTIONS TO PROCESS REQUIREMENTS MAY OCCUR THROUGH AGREEMENT WITH THE CUSTOMER.

ENA’S INTERPRETATION OF THESE TECHNICAL SPECIFICATIONS MAY NOT BE APPROPRIATE FOR USE BY OTHERS AND IS SUBJECT TO CHANGE WITHOUT NOTICE. 

Additional Helpful Information

*ASTM B221-14 and B221M-13 & B241/B241M-16: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wires, Profiles, and Tubes (B221/B221M) and Seamless Pipe and Extruded Tube (B241/B241M).
These baseline specifications for aluminum extrusion product requirements set forth mechanical properties and chemical composition limits. Acceptable ranges within such limits comprise the basis for ENA's certification within the tables below.

B221-14 & B221M-13
Table 1     Chemical Composition Limits
Table 2     Mechanical Property Limits

B241/B241M-16
Table 1     Tensile Property Limits for Pipe, [Inch Pound Units]
Table 2     Tensile Property Limits for Pipe, [SI Units]
Table 3     Tensile Property Limits for Extruded Tube, [Inch Pound Units]
Table 4     Tensile Property Limits for Extruded Tube, [SI Units] 
Table 5     Composition Limits

*ASME SB-221-17: Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
This specification is identical to ASTM B221 except that certification and test reports, as described therein, are mandatory (See Section 22).  However, ENA only provides a certified test report for mechanical properties.  Actual chemistry results are not reported unless agreed upon between ENA and the customer.  Other testing requirements are not reported on ENA’s Certified Test Report as they are not applicable.  Although there is a metric version of ASTM B221, there are no metric versions for this specification.  Acceptable ranges comprise the basis for ENA’s certification within the tables below. 

Table 1      Chemical Composition Limits
Table 2      Mechanical Property Limits

*ASME SB-241/SB-241M-17:  Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube.
This specification is identical to ASTM B241/B241M except that certification and test reports, as described therein, are mandatory (See Section 21).  However, ENA only provides a certified test report for mechanical properties.  Actual chemistry results are not reported unless agreed upon between ENA and the customer.  Other testing requirements are not reported on ENA’s Certified Test Report as they are not applicable.  Acceptable ranges comprise the basis for ENA’s certification.

Table 1      Tensile Property Limits for Pipe, [Inch Pound Units]
Table 2      Tensile Property Limits for Pipe, [SI Units]
Table 3      Tensile Property Limits for Extruded Tube, [Inch Pound Units]
Table 4      Tensile Property Limits for Extruded Tube, [SI Units]
Table 5      Composition Limits

*ASTM B236-15 and B236M-15: Standard Specification for Aluminum Bars for Electrical Purposes - Bus Bars.
This specification sets forth the electrical properties required for the production of extrusions used in electrical applications.  It is only applicable to the 1350 alloy in certain H tempers.  ENA sets the bending frequency, method, and specimen dimensions for testing material ductility used in electrical applications per ASTM E290.  Electrical resistivity and conductivity are tested in accordance with ASTM B193 and ASTM E1004 (via eddy-current method), respectively, or as otherwise agreed with the customer. Acceptable ranges comprise the basis for ENA’s certification.

Table 1          Tensile Property Limits
Table 2          Chemical Composition Limits
Section 11    Electrical Properties

*ASTM B317/B317M-15: Standard Specification for Aluminum-Alloy Extruded Bar, Rod, Tube, Structural Profiles, and Profiles for Electrical Purposes (Bus Conductors).
This specification sets forth the electrical properties required for the production of extrusions used in electrical applications.  It is only applicable to the 6101 alloy.  ENA sets the bending frequency, method, and specimen dimensions for testing material ductility used in electrical applications per ASTM E290.  Electrical resistivity and conductivity are tested in accordance with ASTM B193 and ASTM E1004 (via eddy-current method), respectively, or as otherwise agreed with the customer. Acceptable ranges comprise the basis for ENA’s certification.

Table 1        Chemical Composition Limits
Table 2        Tensile Property Limits
Table 4        Resistivity & Conductivity Limits

*ASTM B429/B429M-10: Standard Specification for Aluminum-Alloy Extruded Structural Pipe and Tube.
This specification sets forth mechanical properties and chemical composition limits for porthole die-extruded structural pipe and tube.  Acceptable ranges within such limits comprise the basis of ENA’s certification.  Pipe and tube dimensional and tolerancing requirements are agreed upon with the customer on a case by case basis and requirements are noted on the customer drawing.  Acceptable ranges comprise the basis for ENA’s certification.

Table 1        Chemical Composition Limits
Table 2        Tensile Property Limits

NOTE:  Customers requiring certification to the chemical and mechanical specification tables of ASTM B308/B308M: Standard Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles or ASME SB-308/SB-308M: Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles should place an order for ASTM B429/B429-10.  Table 1 (Chemical Composition) and Table 2 (Mechanical Properties) are identical for all these specifications.

*ASTM B483/B483M-13: Standard Specification for Aluminum and Aluminum-Alloy Drawn Tube and Drawn Pipe for General Purpose Applications.
This specification sets forth mechanical properties and chemical composition limits for drawn tube and pipe.  Acceptable ranges within such limits comprise the basis of ENA’s certification.  Extrusion press quench practices are allowed in lieu of furnace solution heat treatment by agreement with the customer.  Process variability is discussed in more detail below. Acceptable ranges comprise the basis for ENA’s certification.

Table 1        Tensile Property Limits, Tube
Table 2        Tensile Property Limits, Drawn Pipe
Table 3        Chemical Composition Limits

ASTM B557-15 and B557M-15: Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products.
This testing specification sets forth the parameters and methods for tension testing of aluminum alloys.  ENA meets the material requirements of this specification with some exceptions including, but not limited to, testing speed (higher strain rate does not impact mechanical properties of the extrusions), variability in specimen location cut from the profile sample, and reporting of elongation method on the Certified Test Report.  Elongation method used is available upon request.

ASTM B594-13: Standard Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products.
This testing specification sets forth the parameters and methods for detecting internal discontinuities (e.g., inclusion) in the product using immersion or contact ultrasonic techniques to define applicable quality levels in aluminum-alloy wrought products.  This testing is only performed when required by the customer as noted on the purchase order.

ASTM B807/807M-13:Standard Specification for Extrusion Press Solution Heat Treatment for Aluminum Alloys.
This specification sets forth process control requirements for the press extrusion quench process for select alloy/temper combinations.  ENA press quenches extrusions and utilizes a programmable logic controller (PLC) driven “run to recipe” system for process control, including temperature controls throughout the extrusion process.  Quench is achieved (via air or water) and monitored by infrared camera at some plants.  Quenching the extrusion at the press, coupled with subsequent precipitation strengthening processes (e.g., aging), can be used as a substitute for furnace solution heat treatment as a viable means of achieving mechanical properties.

The “run to recipe” system is designed to help provide a recommended setup for the extrusion process to achieve a customer’s mechanical property requirements up through and including the press exit temperature (but does not include the quench process).  While statistical review and capability verification of mechanical properties is not currently part of process validation, mechanical testing of material is used to verify mechanical properties.

ASTM B918/B918M-17: Standard Practice for Heat Treatment of Wrought Aluminum Alloys.
This process specification sets forth general post-extrusion quench aging processes.  ENA conducts Temperature Uniformity Surveys (TUS) with variability in frequency and methodology.  In certain locations, System Accuracy Tests (SAT) are performed with variation in frequency and pyrometry as compared to those outlined in B918.  Results of quench and heat treatment are validated through mechanical property testing.

ENA develops its own heat treating (aging) cycles based upon analysis and empirical mechanical property results.

*AMS QQ-A-200/8A: Aerospace Standard for Aluminum Alloy 6061 Bar, Rod, Shapes, Tube, and Wire.
This aerospace process specification sets forth the general requirements for 6061 alloy press-quenched material.  ENA plants produce extrusions to this specification with some deviations, including, but not limited to, deviations associated with product verification procedures, formal internal documentation, and methods of equipment verification. Acceptable ranges comprise the basis for ENA’s certification.

Table 1        Chemical Composition Limits
Table 2        Tensile Property Limits

AMS 2750E-12: Aerospace Furnace Pyrometry Requirements.
This aerospace process specification sets forth specific heat treatment pyrometry requirements for furnace equipment.  The specification applies to solution heat-treated products and only applies to 2000- and 7000-series alloys.  Practices for heat treating technical requirements, pyrometry, quench control, and statistical process verification are administered through ENA-developed internal methods.  Material is validated as meeting customer property requirements through use of hardness checks and mechanical property testing.

AMS 2772G-16: Aerospace Heat Treatment of Aluminum Alloy Raw Materials.
This aerospace process specification sets forth general requirements for aluminum alloys produced requiring solution heat treatment.  The specification only applies to 2000- and 7000-series alloys. Practices for heat treating technical requirements, pyrometry, quench control, and statistical process verification are administered through ENA-developed internal methods.  Material is validated as meeting customer property requirements through use of hardness checks and mechanical property testing.

MIL-DTL-25995E-14: Detail Specification – Pipe, Aluminum Alloy, Drawn or Extruded.
This Department of Defense specification encompasses a number of applicable ASTM specifications. Depending on the extrusion ordered, the customer should instead refer to the applicable ASTM specification required and not include references to this specification on the purchase order.

Applicable replacement specifications include for Type A extrusions: ASTM B221 (General Extrusion), ASTM B429/B429M (Structural), ASTM B483 (Drawn Tube and Pipe).  For Type B extrusions: ASTM B241/B241M (Seamless Pipe and Tube).

Cancelled or Superseded Specifications: 

Please note that ENA will not accept orders to cancelled or superseded specifications:

ASTM B345/B345M-11Cancelled (2017). Replaced by *ASTM B241/241M-16
Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube for Gas and Oil Transmission and Distribution Piping Systems

AMS QQ-A-200/1: Cancelled (2007). Replaced by *ASTM B221-14, *ASTM B221M-13, *ASTM B241/B241M-16
Aluminum Alloy 3003, Bar, Rod, Shapes, Tube, and Wire, Extruded

AMS QQ-A-200/9: Cancelled (2007). Replaced by *ASTM B221-14, *ASTM B221M-13, *ASTM B241/B241M-16
Aluminum Alloy 6063, Bar, Rod, Shapes, Tube, and Wire, Extruded

AMS QQ-A-200/10: Cancelled (2007). Replaced by *ASTM B221-14, *ASTM B221M-13, *ASTM B241/B241M-16
Aluminum Alloy 6066, Bar, Rod, Shapes, Tube, and Wire, Extruded

AMS QQ-A-200/16: Cancelled (2007). Replaced by *ASTM B221-14, *ASTM B221M-13
Aluminum Alloy, Structural Shapes, Extruded 6061

AMS QQ-A-200/17: Cancelled (2007). Replaced by *ASTM B221-14, *ASTM B221M-13, *ASTM B241/B241M-16
Aluminum Alloy 6162, Bar, Rod, Shapes, Tube, and Wire, Extruded

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Document History

Rev. 0, Initial Document Release, Adams, 09/12/2018