Grade program
Start with the designation route named by your project. Each grade page connects that route to product forms, service inputs, processing, inspection and the purchase details needed for a clear quotation.
Flagship heat-resistant grade
Start with 310S
Compare published 310S naming routes and service inputs, then open the product form that matches the component, dimensions and fabrication plan.
310S / UNS S31008 and EN 1.4845 are published producer naming routes for the flagship grade. State the selected route and governing product standard.
309 Stainless SteelType 309 · UNS S30900Type 309 / UNS S30900 is an ASTM flat-product naming route. Quote the required product standard, form, dimensions, condition and inspection documents.
309S Stainless SteelType 309S / UNS S30908 · EN 1.4833 X18CrNi23-13309S / UNS S30908 and EN 1.4833 are published producer naming routes. State one route with its product standard, form, dimensions and inspection scope.
310 Stainless SteelType 310 · UNS S31000Type 310 / UNS S31000 is an ASTM flat-product naming route. Quote the required product standard, form, dimensions, condition and inspection documents.
253MA Stainless Steel253MA / UNS S30815 · EN 1.4835 X7CrNiSiNCe21-11253MA / UNS S30815 / EN 1.4835 is a published producer grade route. Quote the product standard, form, dimensions, service conditions and inspection scope.
321 Stainless SteelOrder as 321 under the governing product standard321 is included in the confirmed product program. Quote the governing product standard, product form, dimensions, delivery condition, inspection requirements and MTC scope.
321H Stainless SteelType 321H / UNS S32109 · EN 1.4878321H / UNS S32109 and EN 1.4878 are published producer naming routes. State the selected route, product standard, form, condition and inspection scope.
347 Stainless SteelOrder as 347 under the governing product standard347 is included in the confirmed product program. Quote the governing product standard, product form, dimensions, delivery condition, inspection requirements and MTC scope.
347H Stainless SteelOrder as 347H under the governing product standard347H is included in the confirmed product program. Quote the governing product standard, product form, dimensions, delivery condition, inspection requirements and MTC scope.
316Ti Stainless Steel316Ti · EN 1.4571 X6CrNiMoTi17-12-2316Ti / EN 1.4571 is a published producer route for a titanium-stabilized austenitic grade. Quote the standard, form, service inputs and inspection scope.
441 Stainless SteelType 441 / UNS S44100 · EN 1.4509 as a composition-route reference only441 enquiries must identify UNS S44100 or the intended EN route; similarly named 441/4509 materials are not combined into one composition.
444 Stainless Steel444 · EN 1.4521 X2CrMoTi18-2444 / EN 1.4521 is a published producer route for a molybdenum-bearing ferritic grade. Quote the product standard, form, service inputs and inspection scope.
Still comparing grades? Send the operating temperature profile, atmosphere or media, loading, product form, governing standard and inspection requirements. We will organize the published naming and supply routes for your engineering review.