Standard Harmonization • Qualified Cross-Referencing
International Material Cross-Reference & Equivalency
Cross-reference designations across national and international standards (ASTM/UNS, EN/DIN Werkstoff, JIS, ISO, GB). Comparable does not mean equivalent. Engineering substitutions must account for differing impurity limits, testing protocols, and mechanical tolerances.
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Mandatory Engineering Substitution Governance:
International standard designations are established by distinct standards bodies with differing testing standards (e.g. ASTM E8 vs ISO 6892-1). Even when chemical compositions overlap, allowable trace impurities (such as phosphorus, sulfur, or iron), grain size requirements, temper nomenclature, and minimum elongation criteria can differ.
Never authorize a structural alloy substitution without verifying the governing procurement specification, temper, ruling section size, and environmental compatibility.
Relationship Classification Governance
Show All TypesExact Designation
Identical chemical composition and mechanical requirements across different naming authorities.
Rule: Direct 1:1 dual specification permissible subject to certified mill test reports (MTR).Standard Cross-Reference
Officially recognized counterpart in another national or international engineering standard (e.g. ASTM to EN).
Rule: Chemical limits or testing protocols may have subtle differences (e.g. tighter P/S ceilings or impact requirements). Engineering review required before substitution.Close Equivalent
Substantially identical chemistry and overlapping mechanical envelope, but slight variations in allowable trace elements or testing protocols exist across governing standards.
Rule: Direct commercial substitution is generally permissible subject to certified Mill Test Report (MTR) confirmation for critical applications.Approximate Equivalent
Similar base alloy chemistry and general functional properties, but noticeable divergence in allowable impurity ceilings, cold-work response, or minimum yield requirements.
Rule: Engineering substitution review required. Design calculations must verify temper, formability, and corrosion limits before specifying as a direct replacement.Comparable Grade
Similar base chemistry and functional performance envelope, but not officially harmonized by standards organizations.
Rule: Comparable does not mean equivalent. Heat treatment response and dimensional tolerances may diverge.Nearest Alternative
Close metallurgical alternative when the primary grade is unavailable or obsolete.
Rule: Design parameters (weldability, hardenability, fatigue limit) must be re-evaluated for the specific application.Commonly ComparedActive
Frequently evaluated side-by-side during trade-off studies or alloy selection.
Rule: Materials serve different design priorities (e.g. higher strength vs superior corrosion resistance or cost).Not Equivalent (Caution)
Materials superficially mistaken for equivalents that exhibit critical metallurgical incompatibilities.
Rule: DO NOT SUBSTITUTE without full engineering re-qualification.Verified Relationships (44 Mappings)100% Item-Level Provenance
| Source Alloy (UNS) | Relationship Type | Target Grade / Standard | Engineering Scope & Nuance | Actions |
|---|---|---|---|---|
| C14500 Tellurium CopperFree-Machining Copper | Commonly Compared | C11000 ETP CopperConfidence: HIGH | C14500 provides 85% machinability rating and 93% IACS conductivity for high-speed CNC turning, whereas C11000 provides 101% IACS but only 20% machinability rating. | |
| C14500 Tellurium CopperFree-Machining Copper | Commonly Compared | C36000 Free-Cutting BrassConfidence: HIGH | C14500 offers 93% IACS electrical conductivity with 85% machinability rating, whereas C36000 offers 100% machinability but only 28% IACS conductivity. | |
| C14700 Sulfur CopperFree-Machining Copper | Commonly Compared | C11000 ETP CopperConfidence: HIGH | C14700 enables automated high-speed machining (85% rating) with 90% IACS conductivity, compared to 20% machinability and 101% IACS for C11000. | |
| C17200 Beryllium Copper (Alloy 25)Beryllium Copper | Commonly Compared | C17510 Beryllium Copper (Alloy 3)Confidence: HIGH | C17200 (Alloy 25) is high-strength beryllium copper (1.8-2.0% Be) achieving tensile strengths up to 1400 MPa with 22% IACS conductivity. C17510 (Alloy 3) is high-conductivity BeCu (0.2-0.6% Be, 1.4-2.2% Ni) offering 45-60% IACS conductivity with moderate yield strength (up to 650 MPa). | |
| C17200 Beryllium Copper (Alloy 25)Beryllium Copper | Commonly Compared | C17500 Beryllium Copper (Alloy 10)Confidence: HIGH | C17200 prioritizes maximum yield strength and hardness (up to 45 HRC), whereas C17500 prioritizes electrical conductivity (45% IACS) with moderate strength. | |
| C17500 Beryllium Copper (Alloy 10)Beryllium Copper | Commonly Compared | C17200 Beryllium Copper (Alloy 25)Confidence: HIGH | C17500 provides 45% IACS electrical conductivity with moderate strength (up to 760 MPa), whereas C17200 provides extreme strength (up to 1400 MPa) at 22% IACS conductivity. | |
| C17510 Beryllium Copper (Alloy 3)Beryllium Copper | Commonly Compared | C17200 Beryllium Copper (Alloy 25)Confidence: HIGH | C17510 prioritizes electrical and thermal conductivity (45-60% IACS, 225 W/(m·K)) with moderate strength, whereas C17200 prioritizes maximum tensile strength (up to 1400 MPa) and hardness (up to 45 HRC). | |
| C19400 High-Strength Modified Copper (HSM Copper)High-Performance Copper Alloys | Commonly Compared | C11000 ETP CopperConfidence: HIGH | C19400 (Cu-Fe-P) provides superior resistance to softening at elevated soldering temperatures and higher yield strength for electronic leadframes, with 65% IACS conductivity vs 101% for C11000. | |
| C19400 High-Strength Modified Copper (HSM Copper)High-Performance Copper Alloys | Commonly Compared | C51000 Phosphor Bronze 5% AConfidence: HIGH | C19400 provides higher electrical conductivity (65% vs 15% IACS) for high-current electronic terminals, whereas C51000 provides higher fatigue endurance for flexible spring contacts. | |
| C26000 Cartridge Brass 70/30Cartridge Brass | Commonly Compared | C36000 Free-Cutting BrassConfidence: HIGH | C26000 (Cartridge Brass 70/30) is a single-phase alpha brass with the highest cold-ductility of all brasses, ideal for deep-drawing. C36000 is an alpha-beta leaded brass engineered specifically for automatic screw machining (100% machinability rating vs 30% for C26000). | |
| C26000 Cartridge Brass 70/30Cartridge Brass | Commonly Compared | C26800 Yellow Brass 66%Confidence: HIGH | C26000 (70/30) provides maximum deep-drawing cold ductility; C26800 (66/34) is an economical commercial alternative for shallow drawing and stamping. | |
| C26000 Cartridge Brass 70/30Cartridge Brass | Commonly Compared | C28000 Muntz Metal 60/40Confidence: HIGH | C26000 is single-phase alpha brass for severe cold drawing; C28000 is two-phase duplex alpha-beta brass for hot forging and hot stamping. | |
| C26800 Yellow Brass 66%Yellow Brass | Commonly Compared | C26000 Cartridge Brass 70/30Confidence: HIGH | C26800 Yellow Brass 66% (66Cu-34Zn) offers commercial economy for sheet stamping and spinning, whereas C26000 (70Cu-30Zn) provides higher cold ductility for severe deep drawing. | |
| C26800 Yellow Brass 66%Yellow Brass | Commonly Compared | C28000 Muntz Metal 60/40Confidence: HIGH | C26800 is a single-phase alpha brass optimized for cold working, while C28000 is a duplex alpha-beta brass optimized for hot working and forging. | |
| C28000 Muntz Metal 60/40Yellow Brass | Commonly Compared | C26800 Yellow Brass 66%Confidence: HIGH | C28000 Muntz Metal 60/40 is a two-phase duplex brass engineered for hot forging and hot rolling, whereas C26800 is a single-phase alpha brass engineered for cold stamping. | |
| C28000 Muntz Metal 60/40Yellow Brass | Commonly Compared | C26000 Cartridge Brass 70/30Confidence: HIGH | C28000 provides high hot-forging plasticity and higher hardness for architectural plates and tube sheets, whereas C26000 provides maximum cold drawing capability. | |
| C36000 Free-Cutting BrassFree-Machining Brass | Commonly Compared | C26000 Cartridge Brass 70/30Confidence: HIGH | C36000 Free-Cutting Brass contains ~3% lead for optimal 100% machinability rating and chip breaking in turning operations. C26000 Cartridge Brass contains no lead and provides superior cold drawing and stamping capability. | |
| C36000 Free-Cutting BrassFree-Machining Brass | Commonly Compared | C46400 Naval BrassConfidence: HIGH | C36000 is optimized for automated high-speed turning (100% machinability rating), whereas C46400 is optimized for marine corrosion resistance and strength (30% machinability rating). | |
| C36000 Free-Cutting BrassFree-Machining Brass | Commonly Compared | C14500 Tellurium CopperConfidence: HIGH | C36000 provides 100% machinability rating with 28% IACS conductivity, whereas C14500 provides 85% machinability rating with 93% IACS conductivity. | |
| C36000 Free-Cutting BrassFree-Machining Brass | Commonly Compared | C11000 ETP CopperConfidence: HIGH | C36000 is a leaded brass optimized for precision machining (100% rating) with tensile strength 340-470 MPa, whereas C11000 is unalloyed copper providing 101% IACS conductivity but low machinability (20%). | |
| C46400 Naval BrassNaval Brass | Commonly Compared | C36000 Free-Cutting BrassConfidence: HIGH | C46400 Naval Brass includes 0.5-1.0% tin to inhibit seawater dezincification, whereas C36000 contains ~3% lead for 100% machinability. | |
| C51000 Phosphor Bronze 5% APhosphor Bronze | Commonly Compared | C52100 Phosphor Bronze 8% CConfidence: HIGH | C51000 (5% Sn, Grade A) is the standard phosphor bronze for electrical contacts and spring relays (15% IACS). C52100 (8% Sn, Grade C) provides higher tensile and yield strength with superior wear resistance at slightly lower conductivity (13% IACS). | |
| C51000 Phosphor Bronze 5% APhosphor Bronze | Commonly Compared | C54400 Free-Machining Phosphor Bronze (B-2)Confidence: HIGH | C51000 provides maximum fatigue endurance for stamped spring contacts (20% machinability); C54400 adds 3.5-4.5% Pb for 80% machinability in turned bushings. | |
| C51000 Phosphor Bronze 5% APhosphor Bronze | Commonly Compared | C65500 High-Silicon Bronze AConfidence: HIGH | C51000 is chosen for cyclic electrical spring endurance; C65500 is chosen for high-strength weldable marine fasteners and pressure vessels. | |
| C52100 Phosphor Bronze 8% CPhosphor Bronze | Commonly Compared | C51000 Phosphor Bronze 5% AConfidence: HIGH | C52100 contains 8% tin for higher mechanical strength and wear resistance in heavy-duty spring clips and clutch discs compared to 5% tin in C51000. | |
| C54400 Free-Machining Phosphor Bronze (B-2)Phosphor Bronze | Commonly Compared | C51000 Phosphor Bronze 5% AConfidence: HIGH | C54400 Free-Machining Phosphor Bronze (80% machinability rating) contains lead for screw machine bearings and bushings, whereas C51000 is un-leaded for stamped springs. | |
| C54400 Free-Machining Phosphor Bronze (B-2)Phosphor Bronze | Commonly Compared | C36000 Free-Cutting BrassConfidence: HIGH | C54400 offers bronze bearing properties, wear resistance, and fatigue endurance with 80% machinability, whereas C36000 offers 100% machinability in general brass turning. | |
| C61400 Aluminum Bronze DAluminum Bronze | Commonly Compared | C63000 Nickel-Aluminum Bronze (AMS 4640)Confidence: HIGH | C61400 (Alloy D) is single-phase alpha aluminum bronze with 6-8% Al, offering high ductility and outstanding ASME code weldability. C63000 is a high-strength multi-phase Ni-Al bronze (AMS 4640). | |
| C61400 Aluminum Bronze DAluminum Bronze | Commonly Compared | C65500 High-Silicon Bronze AConfidence: HIGH | Both alloys are weldable, corrosion-resistant wrought copper alloys; C61400 provides superior cavitation and mineral acid resistance; C65500 provides superior fastener cold forming. | |
| C63000 Nickel-Aluminum Bronze (AMS 4640)Aluminum Bronze | Commonly Compared | C95400 Aluminum Bronze 9CConfidence: HIGH | C63000 is wrought nickel-aluminum bronze (AMS 4640 / ASTM B150) providing void-free metallurgical density and higher fatigue strength; C95400 is continuous-cast aluminum bronze (Alloy 9C). | |
| C63000 Nickel-Aluminum Bronze (AMS 4640)Aluminum Bronze | Commonly Compared | C63200 Nickel-Aluminum Bronze (Naval Alloy)Confidence: HIGH | C63000 (AMS 4640) and C63200 (MIL-B-24480) are wrought nickel-aluminum bronzes; C63200 strictly restricts iron content below nickel and tightens manganese limits to ensure high dynamic fracture toughness for naval submarine service. Qualification cannot be inferred from specification name. | |
| C63200 Nickel-Aluminum Bronze (Naval Alloy)Aluminum Bronze | Commonly Compared | C63000 Nickel-Aluminum Bronze (AMS 4640)Confidence: HIGH | C63200 is a modified wrought nickel-aluminum bronze governed by MIL-B-24480, engineered with Fe <= Ni to ensure high dynamic fracture toughness in marine shock environments; C63000 is an aerospace/commercial wrought alloy and cannot be substituted for MIL-B-24480 naval applications without engineering qualification. | |
| C63200 Nickel-Aluminum Bronze (Naval Alloy)Aluminum Bronze | Commonly Compared | C95400 Aluminum Bronze 9CConfidence: HIGH | C63200 is wrought naval Ni-Al bronze with superior impact toughness; C95400 is cast aluminum bronze for general heavy industrial duty. | |
| C65500 High-Silicon Bronze ASilicon Bronze | Commonly Compared | C51000 Phosphor Bronze 5% AConfidence: HIGH | C65500 High-Silicon Bronze A offers superior TIG/MIG weldability, corrosion resistance, and cold ductility for marine fasteners and pressure vessels, whereas C51000 offers higher cyclic spring fatigue endurance. | |
| C65500 High-Silicon Bronze ASilicon Bronze | Commonly Compared | C61400 Aluminum Bronze DConfidence: HIGH | Both are corrosion-resistant wrought copper alloys with excellent weldability; C65500 provides higher cold forming capability; C61400 provides higher cavitation resistance. | |
| C70600 Copper-Nickel 90/10Copper-Nickel (Cupronickel) | Commonly Compared | C71500 Copper-Nickel 70/30Confidence: HIGH | C70600 (90/10 Cu-Ni) provides inherent biofouling and seawater corrosion resistance in marine piping systems. C71500 (70/30 Cu-Ni) delivers higher mechanical strength and greater erosion-corrosion resistance in higher-velocity fluid systems. | |
| C71500 Copper-Nickel 70/30Copper-Nickel (Cupronickel) | Commonly Compared | C70600 Copper-Nickel 90/10Confidence: HIGH | C71500 (70/30 Cu-Ni) provides greater erosion-corrosion resistance and allowable stress in marine piping systems, while C70600 (90/10) offers high biofouling resistance and lower material cost. | |
| C93200 Bearing Bronze (SAE 660)Bearing Bronze | Commonly Compared | C95400 Aluminum Bronze 9CConfidence: HIGH | C93200 (SAE 660 High-Leaded Tin Bronze) is engineered for continuous sleeve bearings operating with boundary lubrication, providing anti-friction behavior and low shaft wear. C95400 Aluminum Bronze is a high-strength cast alloy designed for heavy loads and wear. | |
| C95400 Aluminum Bronze 9CAluminum Bronze | Commonly Compared | C93200 Bearing Bronze (SAE 660)Confidence: HIGH | C95400 Aluminum Bronze provides high tensile strength, hardness, and wear resistance for heavy-duty mechanical components. C93200 is a leaded bearing bronze optimized for anti-friction sleeve bearings with low shaft wear. | |
| C95400 Aluminum Bronze 9CAluminum Bronze | Commonly Compared | C63000 Nickel-Aluminum Bronze (AMS 4640)Confidence: HIGH | C95400 is cast aluminum bronze for general heavy industrial wear and gears; C63000 is wrought nickel-aluminum bronze (AMS 4640) for flight-critical aerospace and marine hardware. | |
| 304 Stainless SteelAustenitic | Commonly Compared | 304L Stainless SteelConfidence: HIGH | Producer presents distinct standard-carbon and low-carbon grades together. This comparison relationship does not assert interchangeability or dual certification for arbitrary stock. | |
| 304L Stainless SteelAustenitic | Commonly Compared | 304 Stainless SteelConfidence: HIGH | Producer presents distinct standard-carbon and low-carbon grades together. This comparison relationship does not assert interchangeability or dual certification for arbitrary stock. | |
| 316 Stainless SteelAustenitic | Commonly Compared | 316L Stainless SteelConfidence: HIGH | Producer presents distinct standard-carbon and low-carbon grades together. This comparison relationship does not assert interchangeability or dual certification for arbitrary stock. | |
| 316L Stainless SteelAustenitic | Commonly Compared | 316 Stainless SteelConfidence: HIGH | Producer presents distinct standard-carbon and low-carbon grades together. This comparison relationship does not assert interchangeability or dual certification for arbitrary stock. |