Stainless Steel Pipe Fittings

Ferritic Stainless Steel Grades Comparison Table By

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Ferritic Stainless Steel Grades Comparison Table By

The Ferritic Stainless Steel Grades Comparison Table is intended to relate former BS, EN, German and Swedish grade designations to the current EN steel numbers, AISI grades and UNS numbers. The table is based on the ‘wrought’ ie long products (stainless steel bars etc), pipe products (stainless steel pipes etc) stainless steel numbers published in EN 10088 and related standards. 
Casting products use different composition and so have their own stainless steel numbers in EN 10283. The related castings grades in both EN 10283 and BS 3100 are included in the table.

The Chemical ‘Composition’ is intended to represent the composition only. This does not show the specified or typical compositions of commercially available steel. Specified ranges for the wrought European grades can be found in either the EN 10088-2 or EN 10088-3 tables.
Most of the specified ranges for the ‘BS’ grades can be found in the BS 1449 or BS 970 tables. The castings grades specified ranges can be found in the EN 10283 or BS 3100 tables.

These are comparisons only and cannot be assumed to be direct equivalent grades. The data given is not intended to replace that shown in individual standards to which reference should always be made.

Ferritic Stainless Steel Grades Comparison Table

EN 10088 Common Names BS Wrought AISI UNS EN German DIN SS EN 10283 BS Casting Chemical Composition
. . . . . . . . . . C Cr Ni Mo Others
1.4000 403S17 410S S41008 X6Cr13 2301 0.08x 12
1.4002 405S17 405 S40500 X6CrAl13 0.08x 12 0.2 Al
1.4003 3Cr12 S41050 X2Cr11 0.03x 11 0.5
1.4016 430S17 430 S43000 60 X6Cr17 2320 0.08x 17
1.4113 434S17 434 S43400 X6CrMo17-1 0.08x 17 1
1.4509 18CrCb 441 S44100 0.015x 18 NbandTi
1.4510 430Ti 439 S43035 X6CrTi17 0.05x 17 0.6 Ti
1.4511 430Nb X6CrNb17 0.05x 17 0.6 Nb
1.4512 409S19 409 S40900 X6CrTi12 0.03x 11 0.5 Ti
1.4520 X2CrTi17 0.025x 17 0.5 Ti:0.015N
1.4521 444 S44400 X2CrMoTi18-2 0.025x 17 2 0.6 Ti
1.4526 436 S43600 X2CrMoNb17-1 0.08x 17 1.2 0.6 Nb
1.4592 X2CrMoTi2-4 0.025x 28 4.0 0.6 Ti
1.4605 X2CrAlTi18-2 0.03x 17 0.6 Ti:2.0 Al

Note Chemical composition figures are intended to be representative of the grade, not typical. ‘x’ indicates a maximum

Source: Zhejiang Yaang Pipe Industry Co., Limited (

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Stainless Steel

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