{"id":3875,"date":"2024-03-18T06:10:10","date_gmt":"2024-03-18T06:10:10","guid":{"rendered":"https:\/\/3dp.45612300.xyz\/product\/best-in738-powder-for-3d-printing-in-2023\/"},"modified":"2024-03-18T06:10:10","modified_gmt":"2024-03-18T06:10:10","slug":"best-in738-powder-for-3d-printing-in-2023","status":"publish","type":"product","link":"https:\/\/3dpmetal.com\/cs\/product\/best-in738-powder-for-3d-printing-in-2023\/","title":{"rendered":"Best IN738 powder for 3D printing in 2023"},"content":{"rendered":"

<\/p>\n

Overview of IN738 Powder for 3D Printing<\/strong><\/h2>\n

IN738 is a nickel-based superalloy powder that is widely used for additive manufacturing of high-performance metal parts. It combines excellent mechanical properties at high temperatures with processability, making it an ideal choice for 3D printingaerospace and industrial components.<\/p>\n

This article provides a comprehensive guide to IN738 alloy powder for 3D printing applications. It covers composition, properties, print parameters, applications, specifications, suppliers, handling, inspection, comparisons, pros and cons, and frequently asked questions about IN738 powder. Key information is presented in easy-to-reference tables.<\/p>\n

Composition of IN738 Powder<\/strong><\/h3>\n

IN738 has a precipitation hardening alloy composition containing various solute elements:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Element<\/th>\nHmotnostn\u00ed %<\/th>\n\u00da\u010del<\/th>\n<\/tr>\n<\/thead>\n
Nikl<\/td>\nBalance<\/td>\nMatrix element provides corrosion resistance<\/td>\n<\/tr>\n
Chromium<\/td>\n15 – 17<\/td>\nOxida\u010dn\u00ed odolnost<\/td>\n<\/tr>\n
Hlin\u00edk<\/td>\n3.4 – 4.4<\/td>\nTvrzen\u00ed vytvrzov\u00e1n\u00edm<\/td>\n<\/tr>\n
Titan<\/td>\n3.2 – 4.2<\/td>\nTvrzen\u00ed vytvrzov\u00e1n\u00edm<\/td>\n<\/tr>\n
\u017delezo<\/td>\n12.5 max<\/td>\nSolid solution strengthening<\/td>\n<\/tr>\n
Kobalt<\/td>\n8.5 – 10<\/td>\nSolid solution strengthening<\/td>\n<\/tr>\n
Molybden<\/td>\n1.5 – 2.5<\/td>\nCreep strengthening<\/td>\n<\/tr>\n
Tantal<\/td>\n1 – 2<\/td>\nTvrzen\u00ed vytvrzov\u00e1n\u00edm<\/td>\n<\/tr>\n
Uhl\u00edk<\/td>\n0.11 max<\/td>\nKarbidov\u00e1 d\u0159\u00edvka<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Trace amounts of boron, zirconium and magnesium are also added for grain structure control.<\/p>\n

Properties of IN738 Powder<\/strong><\/h3>\n

IN738 exhibits the following key properties:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Nemovitost<\/th>\nPopis<\/th>\n<\/tr>\n<\/thead>\n
vysok\u00e1 pevnost<\/td>\nExcellent tensile and creep rupture strength up to 750\u00a1\u00abC<\/td>\n<\/tr>\n
Tepeln\u00e1 stabilita<\/td>\nStrength and hardness maintained up to 700\u00a1\u00abC<\/td>\n<\/tr>\n
Oxida\u010dn\u00ed odolnost<\/td>\nForms protective Cr2O3 oxide scale<\/td>\n<\/tr>\n
Thermal fatigue resistance<\/td>\nResists cracking during thermal cycling<\/td>\n<\/tr>\n
Odolnost proti korozi<\/td>\nHigh resistance to hot corrosion and oxidation<\/td>\n<\/tr>\n
Zpracovatelnost<\/td>\nReadily weldable using matching filler material<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The properties make it suitable for hot section aerospace components exposed to extreme stresses.<\/p>\n

3D Printing Parameters for IN738 Powder<\/strong><\/h3>\n

Optimized print parameters are needed to process IN738 powder:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Parametr<\/th>\nTypick\u00e1 hodnota<\/th>\n\u00da\u010del<\/th>\n<\/tr>\n<\/thead>\n
Layer thickness<\/td>\n20\u201350 \u00c3\u201em<\/td>\nThinner layers improve resolution<\/td>\n<\/tr>\n
V\u00fdkon laseru<\/td>\n180-500 W<\/td>\nMelting condition without evaporation<\/td>\n<\/tr>\n
Rychlost skenov\u00e1n\u00ed<\/td>\n800-1600 mm\/s<\/td>\nBalances density and build time<\/td>\n<\/tr>\n
Rozte\u010d poklop\u016f<\/td>\n50-200 \u00c3\u00d7m<\/td>\nDensity and mechanical properties<\/td>\n<\/tr>\n
Podp\u016frn\u00e1 struktura<\/td>\nMinim\u00e1ln\u00ed<\/td>\nEase of removal, surface finish<\/td>\n<\/tr>\n
Inert gas<\/td>\nArgon<\/td>\nPrevent oxidation during printing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Parameter selection depends on factors like build geometry, mechanical requirements, surface finish needs and orientation.<\/p>\n

Applications of 3D Printed IN738 Parts<\/strong><\/h3>\n

Additively manufactured IN738 components serve critical applications in:<\/p>\n\n\n\n\n\n\n\n\n
Pr\u016fmysl<\/th>\nKomponenty<\/th>\n<\/tr>\n<\/thead>\n
Letectv\u00ed a kosmonautika<\/td>\nTurbine blades, combustors, exhaust parts<\/td>\n<\/tr>\n
V\u00fdroba energie<\/td>\nHot gas path parts, heat exchangers<\/td>\n<\/tr>\n
Automotivn\u00ed<\/td>\nTurbocharger wheels, valves<\/td>\n<\/tr>\n
Chemick\u00e9 zpracov\u00e1n\u00ed<\/td>\nPumps, valves, casings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Benefits over cast\/wrought IN738 include complex geometries, reduced lead time and buy-to-fly ratio.<\/p>\n

Specifications of IN738 Powder for 3D Printing<\/strong><\/h3>\n

IN738 powder is commercially available meeting composition and quality specifications:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Parametr<\/th>\nSpecifikace<\/th>\n<\/tr>\n<\/thead>\n
Rozsah velikosti \u010d\u00e1stic<\/td>\n15-45 \u00c3\u00d7m typicky<\/td>\n<\/tr>\n
Tvar \u010d\u00e1stice<\/td>\nSf\u00e9rick\u00e1 morfologie<\/td>\n<\/tr>\n
Zd\u00e1nliv\u00e1 hustota<\/td>\n> 4 g\/cc<\/td>\n<\/tr>\n
Hustota poklep\u00e1n\u00ed<\/td>\n> 6 g\/cc<\/td>\n<\/tr>\n
Hmotnostn\u00ed pr\u016ftok halou<\/td>\n> 23 s pro 50 g<\/td>\n<\/tr>\n
\u010cistota<\/td>\n>99.9%<\/td>\n<\/tr>\n
Obsah kysl\u00edku<\/td>\n<300 ppm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Other size ranges, purities, and tighter tolerances are possible for specific applications.<\/p>\n

Suppliers of IN738 Powder<\/strong><\/h3>\n

Reputable IN738 powder vendors include:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Dodavatel<\/th>\nUm\u00edst\u011bn\u00ed<\/th>\n<\/tr>\n<\/thead>\n
Praxair<\/td>\nUSA<\/td>\n<\/tr>\n
Carpenter Powder Products<\/td>\nUSA<\/td>\n<\/tr>\n
Sandvik Osprey<\/td>\nSpojen\u00e9 kr\u00e1lovstv\u00ed<\/td>\n<\/tr>\n
Erasteel<\/td>\n\u0160v\u00e9dsko<\/td>\n<\/tr>\n
AMETEK<\/td>\nUSA<\/td>\n<\/tr>\n
LPW Technologie<\/td>\nSpojen\u00e9 kr\u00e1lovstv\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Pricing ranges from $90\/kg to $220\/kg based on quality, size distribution and order quantity.<\/p>\n

Handling and Storage of IN738 Powder<\/strong><\/h3>\n

As a reactive metal, IN738 powder requires controlled handling:<\/p>\n

    \n
  • Store sealed containers in a cool, dry inert gas environment<\/li>\n
  • Avoid contact with moisture, acids and oxidizing agents<\/li>\n
  • Use conductive containers and transfer equipment<\/li>\n
  • Uzemn\u011bte za\u0159\u00edzen\u00ed, abyste odvedli statick\u00fd n\u00e1boj<\/li>\n
  • Minimize dust generation and accumulation<\/li>\n
  • Doporu\u010den\u00e9 m\u00edstn\u00ed ods\u00e1vac\u00ed v\u011btr\u00e1n\u00ed<\/li>\n
  • Dodr\u017eujte bezpe\u010dnostn\u00ed pokyny v bezpe\u010dnostn\u00edm listu<\/li>\n<\/ul>\n

    Proper storage and handling prevents property changes or hazards.<\/p>\n

    Inspection and Testing of IN738 Powder<\/strong><\/h3>\n

    Quality testing methods for IN738 powder include:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
    Metoda<\/th>\nTestovan\u00e9 parametry<\/th>\n<\/tr>\n<\/thead>\n
    S\u00edtov\u00fd rozbor<\/td>\nDistribuce velikosti \u010d\u00e1stic<\/td>\n<\/tr>\n
    Difrakce laseru<\/td>\nDistribuce velikosti \u010d\u00e1stic<\/td>\n<\/tr>\n
    Skenovac\u00ed elektronov\u00e1 mikroskopie<\/td>\nParticle morphology and microstructure<\/td>\n<\/tr>\n
    EDX\/XRF<\/td>\nChemie a slo\u017een\u00ed<\/td>\n<\/tr>\n
    XRD<\/td>\nP\u0159\u00edtomn\u00e9 f\u00e1ze<\/td>\n<\/tr>\n
    Pyknometrie<\/td>\nHustota<\/td>\n<\/tr>\n
    Hmotnostn\u00ed pr\u016ftok halou<\/td>\nTe\u010den\u00ed pr\u00e1\u0161k\u016f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Testing as per applicable ASTM standards ensures batch-to-batch consistency.<\/p>\n

    Comparing IN738 to Alternative Alloy Powders<\/strong><\/h3>\n

    IN738 compares to other Ni-based superalloys as:<\/p>\n\n\n\n\n\n\n\n\n
    Slitina<\/th>\nOxida\u010dn\u00ed odolnost<\/th>\nCena<\/th>\nMo\u017enost tisku<\/th>\nSchwei\u00dfbarkeit<\/th>\n<\/tr>\n<\/thead>\n
    IN738<\/td>\nV\u00fdborn\u00fd<\/td>\nSt\u0159edn\u00ed<\/td>\nV\u00fdborn\u00fd<\/td>\nDobr\u00e9<\/td>\n<\/tr>\n
    IN718<\/td>\nSt\u0159edn\u00ed<\/td>\nN\u00edzk\u00fd<\/td>\nF\u00e9rov\u00e1<\/td>\nV\u00fdborn\u00fd<\/td>\n<\/tr>\n
    Haynes 282<\/td>\nV\u00fdborn\u00fd<\/td>\nVelmi vysok\u00fd<\/td>\nDobr\u00e9<\/td>\nOmezen\u00e9<\/td>\n<\/tr>\n
    Inconel 625<\/td>\nDobr\u00e9<\/td>\nSt\u0159edn\u00ed<\/td>\nV\u00fdborn\u00fd<\/td>\nV\u00fdborn\u00fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    For printability and performance, IN738 provides the best balance compared to alternatives like IN718 or Haynes 282.<\/p>\n

    Pros and Cons of IN738 Powder<\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n
    Klady<\/th>\nNev\u00fdhody<\/th>\n<\/tr>\n<\/thead>\n
    Excellent strength and oxidation resistance at high temperatures<\/td>\nMore expensive than IN718 alloy powder<\/td>\n<\/tr>\n
    Readily weldable using matching filler<\/td>\nLower room temperature tensile ductility<\/td>\n<\/tr>\n
    Widely validated for AM processes<\/td>\nRequires hot isostatic pressing to relieve stresses<\/td>\n<\/tr>\n
    Performance comparable\/superior to cast IN738<\/td>\nControlled atmosphere storage and handling needed<\/td>\n<\/tr>\n
    Mo\u017enost pou\u017eit\u00ed slo\u017eit\u00fdch geometri\u00ed<\/td>\nLimited high temperature creep strength<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    IN738 enables outstanding performance for critical hot section parts but is costlier than other Ni-superalloy options.<\/p>\n

    Frequently Asked Questions about IN738 Powder for 3D Printing<\/strong><\/h2>\n

    Here are some common FAQs about IN738 powder:<\/p>\n

    Q: What particle size is recommended for printing IN738?<\/strong><\/p>\n

    A: 15-45 microns is the typical size range used, providing good flowability along with high resolution and density. Finer particles below 10 microns can improve density and surface finish.<\/p>\n

    Q: What makes IN738 suitable for 3D printing?<\/strong><\/p>\n

    A: Key factors are its printability, mechanical properties, weldability, and prior usage in conventional processes that aid validation. IN738 was designed for wrought processing, making it readily adaptable to additive manufacturing.<\/p>\n

    Q: What post processing is required for IN738 printed parts?<\/strong><\/p>\n

    A: Post processes like hot isostatic pressing, heat treatment, and machining are usually needed to relieve stresses and achieve the required dimensions, surface finish, and final properties.<\/p>\n

    Q: Are support structures necessary for printing IN738?<\/strong><\/p>\n

    A: Minimal support structures are recommended to avoid difficult removal from complex surfaces and channels. The spherical IN738 powder flows well and does not require extensive supports.<\/p>\n

    Q: What are the alternatives to IN738 powder for 3D printing?<\/strong><\/p>\n

    A: Key alternatives are IN718, IN625, Hastelloy X, Haynes 282, Mar-M247, and C263. However, IN738 provides the best all-round properties for performance and manufacturability.<\/p>\n

    Q: What density is achievable with 3D printed IN738 components?<\/strong><\/p>\n

    A: Densities over 99% are readily achieved for IN738 with optimized 3D printing parameters. This matches the properties of traditionally processed wrought or cast IN738 products.<\/p>\n

    Q: Can IN738 parts be machined after 3D printing?<\/strong><\/p>\n

    A: Yes, machining processes like turning, drilling and milling can be used for better surface finish and accuracy. Suitable tooling parameters are required for machining precipitation hardened IN738 material.<\/p>\n

    Q: What is the typical surface roughness of as-printed IN738 parts?<\/strong><\/p>\n

    A: Surface roughness (Ra) values of around 8-16 microns are typical but can be further improved using machining and other finishing processes.<\/p>\n

    Q: Does IN738 require hot isostatic pressing (HIP) after 3D printing?<\/strong><\/p>\n

    A: HIP helps relieve internal stresses and achieve 100% density but is not mandatory. For non-critical applications, post-process heat treatment may suffice.<\/p>\n

    Q: What are common 3D printing defects observed with IN738?<\/strong><\/p>\n

    A: Defects like porosity, cracking, distortion, incomplete fusion and surface roughness can occur but are mitigated by optimized parameters and procedures.<\/p>\n

    <\/span><\/span><\/p>","protected":false},"excerpt":{"rendered":"

    Overview of IN738 Powder for 3D Printing IN738 is a nickel-based superalloy powder that is widely used for additive manufacturing of high-performance metal parts. It combines excellent mechanical properties at high temperatures with processability, making it an ideal choice for 3D printingaerospace and industrial components. This article provides a comprehensive guide to IN738 alloy powder…<\/p>","protected":false},"featured_media":1755,"parent":0,"template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product-category":[119,120],"class_list":["post-3875","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-3d-printing-metal-powder","product-category-high-temperature-alloy-powder"],"acf":[],"taxonomy_info":{"product-category":[{"value":119,"label":"3D Printing Metal Powder"},{"value":120,"label":"High Temperature Alloy Powder"}]},"featured_image_src_large":["https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/02\/Inconel-738LC.jpg",344,290,false],"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/product\/3875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/media\/1755"}],"wp:attachment":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/media?parent=3875"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/product-category?post=3875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}