The standards and specifications for titanium metal are closely interrelated, collectively ensuring the quality, performance, and applicability of titanium materials. Here's a brief summary of the standards and specifications for titanium metal:

Standards:

1. ASTM International Standards:

   • ASTM B348/B348M: Standard specification for titanium and titanium alloy forgings, including requirements for chemical composition and mechanical properties of forgings.
   • ASTM B265: Standard specification for titanium and titanium alloy sheet, strip, and plate, specifying dimensions, chemical composition, and mechanical properties of sheet materials.
   • ASTM B861/B861M: Standard specification for seamless pipe made of titanium and titanium alloy, covering dimensions, chemical composition, and mechanical properties of pipe materials.
   • ASTM F67: Standard specification for unalloyed titanium for surgical implant applications.
   • ASTM F136: Standard specification for wrought titanium-6 aluminum-4 vanadium ELI (extra low interstitial) alloy for surgical implant applications.

2. ISO International Standards:

   • ISO 5832: Implants for surgery – Metallic materials – Titanium and titanium alloys for surgical implants.
   • ISO 6892: Metallic materials – Tensile testing – Method of test at room temperature, applicable for evaluating mechanical properties of titanium alloys.

3. ASME Standards:

   • ASME SB-265: Specification for titanium and titanium alloy plate, sheet, and strip, similar to ASTM B265 and applicable in pressure vessel industries.
   • ASME SB-337: Specification for seamless and welded titanium and titanium alloy pipe, specifying dimensions, chemical composition, and mechanical properties of pipe materials.
   • ASME SB-348: Specification for titanium and titanium alloy forgings, similar to ASTM B348 and applicable in high-temperature and high-pressure engineering fields.

4. Other National Standards:

   • GB/T 3620.1: Methods for chemical analysis of titanium and titanium alloys – Determination of nitrogen content.
   • GB/T 13810: Methods for chemical analysis of titanium and titanium alloys – Determination of hydrogen content.

Specifications:

1. Chemical Composition Specifications: Specifies the allowable range and deviation of various elements in titanium metal, ensuring compliance with material composition requirements.

2. Mechanical Property Specifications: Includes requirements for tensile strength, yield strength, elongation, etc., ensuring titanium metal materials possess adequate strength and ductility.

3. Processing Technology Specifications: Provides requirements for forging, casting, heat treatment, welding, etc., to ensure processing procedures do not compromise material properties.

4. Product Specification: Specifies dimensions, allowable defects, etc., for different types of titanium products such as sheets, pipes, forgings, etc.

5. Quality Control Specifications: Ensures quality control of titanium products, including raw material inspection, production process control, final product inspection, etc.

In summary, the standards and specifications for titanium metal collectively establish a series of regulations and requirements for titanium materials and products, thereby ensuring their quality, performance, and suitability.

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