AMS 5397 ROUND BAR MANUFACTURING GUIDE: IN-100 NICKEL ALLOY, UNS N13100, 2.4674 & INTERNATIONAL EQUIVALENT SPECIFICATIONS AMS 5397 ROUND BAR, IN-100 ALLOY & UNS N13100 — COMPLETE MANUFACTURING, EQUIVALENT GRADES, APPLICATIONS AND TECHNICAL GUIDE AMS 5397, COMMONLY ASSOCIATED WITH IN-100 / IN100 NICKEL-BASED SUPERALLOY, IS A HIGH-TEMPERATURE NICKEL ALLOY DESIGNED FOR DEMANDING AEROSPACE AND GAS-TURBINE ENVIRONMENTS. THE CURRENT REVISION IS SAE AMS 5397G, REVISED APRIL 19, 2026, AND ITS FORMAL SCOPE IS INVESTMENT CASTINGS, RATHER THAN CONVENTIONAL WROUGHT ROUND BAR. FOR ENGINEERING, PROCUREMENT AND PURPOSES, HOWEVER, BUYERS MAY SEARCH FOR TERMS SUCH AS AMS 5397 ROUND BAR, AMS5397 BAR, IN-100 ROUND BAR, IN100 BAR, UNS N13100 ROUND BAR, IN-100 NICKEL ALLOY BAR, N13100 BAR, ALLOY 100 BAR, 2.4674 NICKEL ALLOY AND IN100 MATERIAL. THIS GUIDE EXPLAINS THE MATERIAL BEHIND THOSE SEARCHES WHILE DISTINGUISHING AMS 5397 CASTING REQUIREMENTS FROM THE MANUFACTURE OF IN-100/UNS N13100 BAR PRODUCTS. WHAT IS AMS 5397? AMS 5397 IS AN SAE AEROSPACE MATERIAL SPECIFICATION FOR CORROSION- AND HEAT-RESISTANT NICKEL-ALLOY INVESTMENT CASTINGS. THE CURRENT SPECIFICATION IDENTIFIES THE ALLOY AS: 50NI – 9.5CR – 15CO – 3.0MO – 4.8TI – 5.5AL – 0.015B – 0.95V – 0.06ZR WITH VACUUM MELTING AND VACUUM CASTING FOLLOWED BY THE SPECIFIED AS-CAST CONDITION. THE ALLOY IS COMMONLY IDENTIFIED AS IN-100 / IN 100 AND IS ASSOCIATED WITH UNS N13100. PARMANU DHATU NIGAM, FOR EXAMPLE, IDENTIFIES N13100 AS A NICKEL-BASED VACUUM-CAST ALLOY AND LISTS AMS 5397 AS ITS MILITARY/AMS SPECIFICATION. IMPORTANT TERMINOLOGY THE FOLLOWING TERMS CAN APPEAR IN INTERNATIONAL PURCHASING AND ENGINEERING SEARCHES: • AMS 5397 • AMS5397 • AMS 5397G • SAE AMS 5397 • IN-100 • IN100 • IN 100 • ALLOY 100 • IN-100 NICKEL ALLOY • IN100 NICKEL SUPERALLOY • UNS N13100 • W.NR. 2.4674 • 2.4674 • NICO15CR10MOALTI • NK15CAT • NICO15CR10MOALTI NICKEL ALLOY CROSS-REFERENCE SOURCES IDENTIFY 2.4674, NICO15CR10MOALTI, AMS 5397, UNS N13100 AND IN 100 TOGETHER. AMS 5397 VS IN-100 ROUND BAR: A CRITICAL DISTINCTION A MAJOR ISSUE IN ONLINE MATERIAL DESCRIPTIONS IS TREATING AMS 5397 AS IF IT WERE ITSELF A ROUND-BAR STANDARD. IT IS NOT. SAE'S CURRENT AMS 5397G EXPLICITLY STATES THAT THE SPECIFICATION COVERS THE ALLOY IN THE FORM OF INVESTMENT CASTINGS. CONSEQUENTLY: DESCRIPTION | CORRECT INTERPRETATION AMS 5397: AEROSPACE MATERIAL SPECIFICATION AMS 5397G: CURRENT REVISION PRODUCT FORM: INVESTMENT CASTING MELTING: VACUUM MELTED CASTING: VACUUM CAST CONDITION: AS CAST ALLOY: IN-100 UNS: N13100 W.NR:2.4674 COMMON DESIGNATION: IN-100 / IN100 ROUND BAR: MUST BE SPECIFIED UNDER AN APPLICABLE BAR/WROUGHT-PRODUCT SPECIFICATION OR CUSTOMER-CONTROLLED MATERIAL SPECIFICATION THIS DISTINCTION IS PARTICULARLY IMPORTANT FOR AEROSPACE PURCHASING, MATERIAL CERTIFICATION, TRACEABILITY AND QUALITY DOCUMENTATION. IN-100 / UNS N13100 CHEMICAL COMPOSITION REPRESENTATIVE CHEMISTRY ASSOCIATED WITH IN-100 / AMS 5397 INCLUDES: ELEMENT APPROXIMATE/SPECIFIED LEVEL NICKEL BALANCE CHROMIUM 9.5–10% COBALT 15% MOLYBDENUM 3% TITANIUM 4.75–4.8% ALUMINUM 5.5% VANADIUM 0.95% ZIRCONIUM 0.06% BORON 0.015% CARBON CONTROLLED BY SPECIFICATION PUBLISHED MATERIAL CROSS-REFERENCE DATA ALSO IDENTIFY IN-100 WITH APPROXIMATELY 61.6% NI, 15% CO, 10% CR, 3% MO, 5.5% AL AND 4.7% TI, ALTHOUGH EXACT LIMITS SHOULD ALWAYS BE TAKEN FROM THE GOVERNING MATERIAL SPECIFICATION AND REVISION RATHER THAN A SECONDARY DATABASE. WHY IN-100 IS CONSIDERED A HIGH-PERFORMANCE SUPERALLOY IN-100 BELONGS TO THE FAMILY OF NICKEL-BASE HIGH-TEMPERATURE SUPERALLOYS. ITS ALLOY DESIGN COMBINES: • NICKEL MATRIX • HIGH COBALT CONTENT • CHROMIUM FOR OXIDATION/CORROSION RESISTANCE • ALUMINUM AND TITANIUM FOR PRECIPITATION STRENGTHENING • MOLYBDENUM FOR SOLID-SOLUTION STRENGTHENING • BORON AND ZIRCONIUM FOR GRAIN-BOUNDARY STRENGTHENING/CONTROL • VANADIUM AS AN ALLOYING ADDITION THIS COMBINATION GIVES THE MATERIAL HIGH-TEMPERATURE STRENGTH AND RESISTANCE TO DEFORMATION IN DEMANDING TURBINE ENVIRONMENTS. UNS N13100 IS SPECIFICALLY DESCRIBED AS A NICKEL-BASED SUPERALLOY FOR APPLICATIONS REQUIRING HIGH-TEMPERATURE STRENGTH AND CREEP RESISTANCE. AMS 5397 / IN-100 MANUFACTURING PROCESS ALTHOUGH AMS 5397 ITSELF SPECIFIES INVESTMENT CASTINGS, AN IN-100-TYPE ROUND PRODUCT REQUIRES A CAREFULLY CONTROLLED METALLURGICAL ROUTE. 1) RAW MATERIAL SELECTION THE MANUFACTURING PROCESS BEGINS WITH CONTROLLED NICKEL-BASE ALLOY CHARGE MATERIALS. TYPICAL CHARGE CONSTITUENTS INCLUDE: • NICKEL • CHROMIUM • COBALT • MOLYBDENUM • TITANIUM • ALUMINUM • VANADIUM • ZIRCONIUM • BORON HIGH-PURITY CHARGE MATERIALS ARE IMPORTANT BECAUSE RESIDUAL ELEMENTS AND TRAMP CONTAMINATION CAN SIGNIFICANTLY AFFECT SUPERALLOY PERFORMANCE. 2) VACUUM MELTING FOR AMS 5397 MATERIAL, VACUUM MELTING IS AN ESSENTIAL PART OF THE SPECIFICATION. VACUUM PROCESSING HELPS CONTROL: • OXYGEN • NITROGEN • HYDROGEN • VOLATILE CONTAMINANTS • UNWANTED INCLUSIONS FOR AEROSPACE-GRADE NICKEL SUPERALLOYS, MELT CLEANLINESS IS PARTICULARLY IMPORTANT BECAUSE INCLUSIONS OR CHEMISTRY DEVIATIONS CAN BECOME CRITICAL DEFECTS IN HIGHLY STRESSED COMPONENTS. AMS 5397'S HISTORICAL AND CURRENT DESCRIPTIONS EXPLICITLY IDENTIFY THE MATERIAL AS VACUUM MELTED AND VACUUM CAST. 3) CHEMICAL ANALYSIS BEFORE PROCEEDING, THE MELT SHOULD BE CHECKED AGAINST THE APPLICABLE CHEMISTRY REQUIREMENTS. TYPICAL CONTROLS INCLUDE: • CARBON • CHROMIUM • NICKEL • COBALT • MOLYBDENUM • TITANIUM • ALUMINUM • BORON • ZIRCONIUM • VANADIUM • RESIDUAL/TRAMP ELEMENTS FOR AEROSPACE PROCUREMENT, A HEAT NUMBER SHOULD BE ASSIGNED AND MAINTAINED THROUGH SUBSEQUENT PROCESSING. MANUFACTURING IN-100 AS ROUND BAR BECAUSE AMS 5397 IS FUNDAMENTALLY A CASTING SPECIFICATION, IN-100 ROUND BAR SHOULD NOT AUTOMATICALLY BE REPRESENTED AS AN AMS 5397 PRODUCT. WHERE AN ENGINEERING PROGRAM REQUIRES AN IN-100 BAR OR BILLET, THE MANUFACTURER MAY USE AN APPROPRIATE CONTROLLED MELTING AND CONSOLIDATION ROUTE DEPENDING ON THE APPROVED MATERIAL SPECIFICATION. POTENTIAL MANUFACTURING STAGES INCLUDE: VACUUM MELTING → CASTING/SOLIDIFICATION → HOMOGENIZATION → HOT WORKING WHERE PERMITTED → INTERMEDIATE PROCESSING → HEAT TREATMENT → STRAIGHTENING → CENTERLESS GRINDING/TURNING → INSPECTION → FINAL CERTIFICATION THE EXACT SEQUENCE DEPENDS ON THE APPROVED WROUGHT-PRODUCT SPECIFICATION AND CUSTOMER REQUIREMENTS. HOT WORKING OF IN-100 IN-100 IS SUBSTANTIALLY MORE DIFFICULT TO PROCESS THAN CONVENTIONAL STAINLESS STEELS OR LOW-ALLOY STEELS. MANUFACTURERS MUST CAREFULLY CONTROL: • STARTING TEMPERATURE • FORGING TEMPERATURE • REDUCTION PER PASS • STRAIN RATE • INTERPASS TEMPERATURE • COOLING RATE • SURFACE CONDITION • GRAIN STRUCTURE IMPROPER THERMAL-MECHANICAL PROCESSING CAN CAUSE: • CRACKING • GRAIN-BOUNDARY DAMAGE • NONUNIFORM MICROSTRUCTURE • EXCESSIVE RESIDUAL STRESS • SURFACE DEFECTS • REDUCED MECHANICAL PERFORMANCE FOR THIS REASON, GENERIC STAINLESS-STEEL BAR MANUFACTURING PARAMETERS SHOULD NOT SIMPLY BE TRANSFERRED TO IN-100. HEAT TREATMENT IN-100 IS A PRECIPITATION-STRENGTHENED NICKEL-BASE SUPERALLOY. HEAT TREATMENT IS THEREFORE CLOSELY CONNECTED WITH: • GAMMA MATRIX STABILITY • GAMMA-PRIME PRECIPITATION • GRAIN STRUCTURE • RESIDUAL STRESS • MECHANICAL STRENGTH • CREEP RESISTANCE • RUPTURE PERFORMANCE THE EXACT SOLUTION, AGING AND COOLING PARAMETERS SHOULD BE TAKEN FROM THE APPLICABLE MATERIAL SPECIFICATION OR APPROVED CUSTOMER PROCESS. DO NOT USE A GENERIC IN-100 HEAT-TREATMENT SCHEDULE AS AN AEROSPACE CERTIFICATION BASIS. IN-100 ROUND BAR FINISHING FOR APPLICATIONS REQUIRING BAR STOCK, FINAL DIMENSIONAL PROCESSING CAN INCLUDE: CENTERLESS GRINDING USED FOR ACHIEVING: • TIGHT DIAMETER TOLERANCES • IMPROVED SURFACE FINISH • ROUNDNESS • STRAIGHTNESS PRECISION TURNING SUITABLE FOR LARGER-DIAMETER STOCK OR MACHINING ALLOWANCES. PEELING CAN REMOVE SURFACE IMPERFECTIONS AND PROVIDE CONTROLLED DIMENSIONAL STOCK BEFORE FINAL GRINDING. SURFACE GRINDING MAY BE USED WHERE THE REQUIRED GEOMETRY AND FINISH JUSTIFY IT. INSPECTION AND QUALITY CONTROL A HIGH-QUALITY IN-100 NICKEL ALLOY BAR MANUFACTURING PROGRAM SHOULD INCORPORATE APPROPRIATE INSPECTION AT MULTIPLE STAGES. CHEMICAL INSPECTION TYPICAL VERIFICATION INCLUDES: • POSITIVE MATERIAL IDENTIFICATION • OPTICAL EMISSION SPECTROSCOPY • XRF WHERE APPROPRIATE • LABORATORY CHEMICAL ANALYSIS FOR CRITICAL AEROSPACE MATERIAL, THE GOVERNING SPECIFICATION DETERMINES ACCEPTABLE ANALYTICAL METHODS. DIMENSIONAL INSPECTION ROUND BAR MAY REQUIRE VERIFICATION OF: • DIAMETER • OVALITY • STRAIGHTNESS • LENGTH • SURFACE FINISH • END CONDITION METALLURGICAL EXAMINATION DEPENDING ON THE PRODUCT SPECIFICATION, EXAMINATION MAY INCLUDE: • GRAIN STRUCTURE • MICROSTRUCTURE • PRECIPITATE MORPHOLOGY • CARBIDES • INCLUSIONS • POROSITY • SEGREGATION NONDESTRUCTIVE TESTING DEPENDING ON CUSTOMER AND PRODUCT REQUIREMENTS, POSSIBLE METHODS INCLUDE: • ULTRASONIC TESTING • LIQUID PENETRANT INSPECTION • EDDY-CURRENT TESTING • RADIOGRAPHIC EXAMINATION FOR APPLICABLE CAST PRODUCTS THE EXACT NDT METHOD AND ACCEPTANCE CRITERIA MUST BE DEFINED BY THE GOVERNING SPECIFICATION OR PURCHASE ORDER. IN-100 MECHANICAL AND HIGH-TEMPERATURE PERFORMANCE IN-100 IS VALUED PARTICULARLY FOR ELEVATED-TEMPERATURE SERVICE. ITS ENGINEERING ADVANTAGES INCLUDE: • HIGH-TEMPERATURE STRENGTH • CREEP RESISTANCE • STRESS-RUPTURE RESISTANCE • OXIDATION RESISTANCE • HIGH STRENGTH-TO-WEIGHT CAPABILITY • STABILITY IN TURBINE ENVIRONMENTS PUBLISHED IN-100 DATA DEMONSTRATE SUBSTANTIAL CREEP AND RUPTURE CAPABILITY AT ELEVATED TEMPERATURES, BUT ACTUAL DESIGN VALUES MUST BE TAKEN FROM THE APPLICABLE CERTIFIED MATERIAL DATA AND NOT SUBSTITUTED WITH GENERIC INTERNET VALUES. INTERNATIONAL EQUIVALENTS AND CROSS-REFERENCE DESIGNATIONS ONE OF THE HIGHEST-VALUE SEARCH TOPICS FOR ENGINEERS AND PROCUREMENT TEAMS IS IN-100 EQUIVALENT MATERIAL. COMMONLY ENCOUNTERED CROSS-REFERENCES INCLUDE: SYSTEM DESIGNATION SAE / AEROSPACE AMS 5397 SAE CURRENT REVISION AMS 5397G UNS N13100 WERKSTOFF / W.NR. 2.4674 DIN MATERIAL DESIGNATION NICO15CR10MOALTI AFNOR NK15CAT JIS-RELATED DESIGNATION NICO15CR10MOALTI COMMERCIAL/ALLOY NAME IN-100 COMMON SHORTHAND IN100 / IN 100 MATERIAL FAMILY NICKEL-BASE SUPERALLOY THESE CROSS-REFERENCES ARE SUPPORTED BY PUBLISHED INTERNATIONAL MATERIAL TABLES. IMPORTANT AN “EQUIVALENT” DESIGNATION DOES NOT AUTOMATICALLY MEAN THAT TWO PRODUCTS ARE INTERCHANGEABLE FOR AEROSPACE QUALIFICATION. CHEMISTRY, PRODUCT FORM, HEAT TREATMENT, MANUFACTURING ROUTE, MECHANICAL PROPERTIES AND INSPECTION REQUIREMENTS MUST BE COMPARED. BRAND NAMES AND COMMERCIAL NAMES COMMON COMMERCIAL OR TRADE REFERENCES ASSOCIATED WITH THIS ALLOY INCLUDE: • IN-100 • IN 100 • IN100 • IN 100 • ALLOY 100 • MTEK 100 IN PARMANU DHATU NIGAM'S DESIGNATION SYSTEM PARMANU DHATU NIGAM IDENTIFIES ITS MTEK 100 PRODUCT WITH CAST UNS N13100 AND AMS 5397) THE IN DESIGNATION IS ASSOCIATED WITH HISTORICAL/COMMERCIAL NICKEL-ALLOY NOMENCLATURE AND SHOULD NOT BE INTERPRETED AS MEANING EVERY IN-100 PRODUCT IS MANUFACTURED TO THE SAME PRODUCT-FORM SPECIFICATION. SIMILAR NICKEL-BASED SUPERALLOYS IN-100 IS OFTEN EVALUATED AGAINST OTHER HIGH-TEMPERATURE NICKEL-BASE ALLOYS. POTENTIAL COMPARISON MATERIALS INCLUDE: • IN-713 • IN-738 • IN-792 • IN-939 • MAR-M-247 • RENÉ 80 • RENÉ 100 • RENÉ 104 • UDIMET 500 • UDIMET 520 • WASPALOY • HAYNES NICKEL SUPERALLOYS HOWEVER, THESE ARE NOT AUTOMATIC EQUIVALENTS TO IN-100. THEIR COMPOSITIONS, STRENGTHENING MECHANISMS, CASTING CHARACTERISTICS AND OPERATING-TEMPERATURE CAPABILITIES CAN DIFFER CONSIDERABLY. PARMANU DHATU NIGAM'S ALLOY GUIDE, FOR EXAMPLE, LISTS IN-100 ALONGSIDE OTHER NICKEL-BASE SUPERALLOYS WHILE SEPARATELY IDENTIFYING THEIR RESPECTIVE SPECIFICATIONS AND UNS DESIGNATIONS. AMS 5397 APPLICATIONS AMS 5397 / IN-100 IS PARTICULARLY ASSOCIATED WITH DEMANDING AEROSPACE AND TURBINE APPLICATIONS. TYPICAL APPLICATIONS INCLUDE: AIRCRAFT ENGINES • TURBINE COMPONENTS • TURBINE BLADES • VANES • NOZZLES • ROTATING COMPONENTS • HIGH-TEMPERATURE ENGINE HARDWARE GAS TURBINES • TURBINE HOT-SECTION COMPONENTS • HIGH-TEMPERATURE STRUCTURAL COMPONENTS • COMPONENTS EXPOSED TO THERMAL CYCLING AEROSPACE ENGINEERING IN-100 IS PARTICULARLY ATTRACTIVE WHERE ELEVATED-TEMPERATURE STRENGTH AND RESISTANCE TO CREEP/RUPTURE ARE IMPORTANT. HISTORICAL MATERIAL REFERENCES SPECIFICALLY ASSOCIATE AMS 5397 WITH SMALL INVESTMENT-CAST PARTS SUCH AS TURBINE BLADES REQUIRING HIGH STRENGTH AND OXIDATION RESISTANCE. AMS 5397 ROUND BAR SUPPLIER REQUIREMENTS IF A CUSTOMER REQUESTS “AMS 5397 ROUND BAR, ” THE SUPPLIER SHOULD CLARIFY THE INTENDED PRODUCT FORM BEFORE ACCEPTING THE ORDER. A PROFESSIONAL INQUIRY SHOULD ESTABLISH: 1. ALLOY DESIGNATION 2. PRODUCT FORM 3. APPLICABLE SPECIFICATION 4. SPECIFICATION REVISION 5. DIAMETER 6. LENGTH 7. HEAT-TREATMENT CONDITION 8. MECHANICAL REQUIREMENTS 9. CHEMICAL REQUIREMENTS 10. NDT REQUIREMENTS 11. SURFACE CONDITION 12. DIMENSIONAL TOLERANCE 13. CERTIFICATION REQUIREMENTS 14. HEAT/LOT TRACEABILITY 15. COUNTRY OF ORIGIN, IF APPLICABLE FOR AN ACTUAL AMS 5397 PRODUCT, THE APPLICABLE PRODUCT FORM IS INVESTMENT CASTING—NOT CONVENTIONAL ROLLED OR FORGED ROUND BAR. AMS 5397 CERTIFICATION AND TRACEABILITY AEROSPACE MATERIAL CERTIFICATION SHOULD PROVIDE A CLEAR CHAIN FROM RAW MATERIAL TO FINISHED PRODUCT. A TYPICAL DOCUMENTATION PACKAGE CAN INCLUDE: • MILL TEST CERTIFICATE • CHEMICAL ANALYSIS • HEAT NUMBER • LOT NUMBER • MECHANICAL TEST RESULTS WHERE APPLICABLE • HEAT-TREATMENT RECORDS • NDT REPORTS • DIMENSIONAL INSPECTION REPORT • CERTIFICATE OF CONFORMITY • MATERIAL SPECIFICATION AND REVISION • TRACEABILITY DOCUMENTATION FOR AMS 5397 PRODUCTS, CERTIFICATION SHOULD SPECIFICALLY IDENTIFY THE APPLICABLE AMS REVISION. THE CURRENT SAE LISTING IDENTIFIES AMS 5397G AS THE CURRENT REVISION, SUPERSEDING AMS 5397F. AMS 5397 SPECIFICATION HISTORY THE AMS 5397 SPECIFICATION HAS A LONG REVISION HISTORY. REVISION AMS 5397 STATUS / DATE: ISSUED FEBRUARY 1965 AMS 5397A STATUS / DATE: 1977 AMS 5397B STATUS / DATE: 1995 AMS 5397C STATUS / DATE: 2002 AMS 5397D STATUS / DATE: 2014 AMS 5397E STATUS / DATE: 2015 AMS 5397F STATUS / DATE: 2021 AMS 5397G STATUS / DATE: REVISED APRIL 2026 — CURRENT SAE'S CURRENT RECORD CONFIRMS THE APRIL 2026 REVISION TO AMS 5397G AND IDENTIFIES THE SPECIFICATION AS COVERING IN-100 INVESTMENT CASTINGS. HIGH-VOLUME KEYWORD CLUSTER FOR AMS 5397 / IN-100 BECAUSE PUBLICLY ACCESSIBLE SEARCH RESULTS DO NOT PROVIDE A RELIABLE UNIVERSAL DATABASE OF EXACT WORLDWIDE MONTHLY SEARCH VOLUMES, IT WOULD BE MISLEADING TO INVENT NUMERICAL SEARCH VOLUMES. THE FOLLOWING ARE INSTEAD HIGH-INTENT GLOBAL KEYWORD CLUSTERS BASED ON THE TERMINOLOGY ACTUALLY USED ACROSS MATERIAL DATABASES, ENGINEERING SEARCHES AND SUPPLIER PAGES. PRIMARY KEYWORDS • AMS 5397 • AMS5397 • AMS 5397G • AMS 5397 MATERIAL • AMS 5397 ALLOY • AMS 5397 SPECIFICATION • AMS 5397 ROUND BAR • AMS 5397 BAR • AMS 5397 SUPPLIER • AMS 5397 MANUFACTURER • AMS 5397 EQUIVALENT IN-100 KEYWORDS • IN-100 • IN100 • IN 100 ALLOY • IN-100 ALLOY • IN-100 MATERIAL • IN-100 ROUND BAR • IN100 ROUND BAR • IN-100 BAR • IN100 BAR • IN-100 NICKEL ALLOY • IN100 NICKEL ALLOY • IN-100 SUPERALLOY • IN100 SUPERALLOY • ALLOY 100 UNS KEYWORDS • UNS N13100 • N13100 • UNS N13100 ALLOY • UNS N13100 BAR • UNS N13100 ROUND BAR • N13100 NICKEL ALLOY • N13100 MATERIAL • N13100 EQUIVALENT EUROPEAN/GLOBAL DESIGNATION KEYWORDS • 2.4674 • W.NR. 2.4674 • DIN 2.4674 • NICO15CR10MOALTI • NK15CAT • IN-100 EQUIVALENT • IN100 EQUIVALENT • N13100 EQUIVALENT • INTERNATIONAL EQUIVALENT OF AMS 5397 MANUFACTURING KEYWORDS • NICKEL ALLOY ROUND BAR MANUFACTURING • NICKEL SUPERALLOY BAR MANUFACTURING • IN100 MANUFACTURING • IN100 MACHINING • IN100 HEAT TREATMENT • IN100 FORGING • IN100 MACHINING SUPPLIER • NICKEL ALLOY BAR MANUFACTURER • AEROSPACE NICKEL ALLOY BAR • AEROSPACE SUPERALLOY SUPPLIER • HIGH TEMPERATURE ALLOY BAR • TURBINE ALLOY BAR • NICKEL SUPERALLOY MANUFACTURER COMMERCIAL BUYER KEYWORDS • AMS 5397 SUPPLIER • AMS 5397 MANUFACTURER • IN100 SUPPLIER • IN100 MANUFACTURER • IN100 ROUND BAR SUPPLIER • N13100 SUPPLIER • N13100 MANUFACTURER • NICKEL ALLOY ROUND BAR SUPPLIER • AEROSPACE ALLOY SUPPLIER • NICKEL SUPERALLOY SUPPLIER • CUSTOM NICKEL ALLOY BAR • PRECISION NICKEL ALLOY BAR FREQUENTLY ASKED QUESTIONS IS AMS 5397 A ROUND BAR SPECIFICATION? NO. AMS 5397G COVERS CORROSION- AND HEAT-RESISTANT NICKEL-ALLOY INVESTMENT CASTINGS. WHAT ALLOY IS AMS 5397? AMS 5397 IS ASSOCIATED WITH IN-100, A NICKEL-BASE SUPERALLOY CORRESPONDING TO UNS N13100. WHAT IS THE UNS NUMBER FOR IN-100? THE COMMONLY ASSOCIATED UNS DESIGNATION IS N13100. WHAT IS THE WERKSTOFF NUMBER FOR IN-100? A COMMONLY PUBLISHED CROSS-REFERENCE IS W.NR. 2.4674) WHAT IS THE DIN DESIGNATION? PUBLISHED CROSS-REFERENCE TABLES IDENTIFY NICO15CR10MOALTI WITH THE MATERIAL. WHAT IS THE AFNOR DESIGNATION? A COMMONLY PUBLISHED DESIGNATION IS NK15CAT. IS IN-100 THE SAME AS AMS 5397? THEY ARE CLOSELY ASSOCIATED DESIGNATIONS, BUT AMS 5397 IS A SPECIFICATION FOR A PARTICULAR PRODUCT FORM AND MANUFACTURING ROUTE, WHILE IN-100 IS THE ALLOY DESIGNATION. PRODUCT FORM AND CERTIFICATION REQUIREMENTS MUST THEREFORE BE CONSIDERED SEPARATELY. CAN IN-100 BE PURCHASED AS ROUND BAR? IN-100/N13100 MATERIAL CAN BE ENCOUNTERED IN DIFFERENT PRODUCT FORMS, BUT A BUYER SHOULD SPECIFY THE APPLICABLE BAR/WROUGHT SPECIFICATION AND CONDITION RATHER THAN SIMPLY REQUESTING “AMS 5397 ROUND BAR.” CONCLUSION AMS 5397 / IN-100 / UNS N13100 IS A HIGH-PERFORMANCE NICKEL-BASE SUPERALLOY INTENDED FOR DEMANDING HIGH-TEMPERATURE APPLICATIONS. ITS COMBINATION OF NICKEL, COBALT, CHROMIUM, MOLYBDENUM, TITANIUM AND ALUMINUM PROVIDES THE METALLURGICAL FOUNDATION FOR HIGH-TEMPERATURE STRENGTH, CREEP RESISTANCE AND TURBINE-SERVICE PERFORMANCE. THE MOST IMPORTANT TECHNICAL DISTINCTION IS THAT SAE AMS 5397G IS AN INVESTMENT-CASTING SPECIFICATION, NOT A GENERIC ROUND-BAR SPECIFICATION. FOR AND INTERNATIONAL PROCUREMENT, THE STRONGEST MATERIAL-IDENTIFICATION CLUSTER IS: AMS 5397 → AMS 5397G → IN-100 → IN100 → ALLOY 100 → UNS N13100 → W.NR. 2.4674 → NICO15CR10MOALTI → NK15CAT THESE TERMS CAN BE INCORPORATED NATURALLY INTO PRODUCT PAGES TARGETING IN-100 ALLOY, UNS N13100, AMS 5397, NICKEL SUPERALLOY, AEROSPACE ALLOY, HIGH-TEMPERATURE NICKEL ALLOY, ROUND BAR, BAR SUPPLIER AND INTERNATIONAL MATERIAL EQUIVALENTS.