Chemical Composition

SPS Grade
& Designation
Elements % Characteristics
TP IS-6911 C
(max.)
Mn
(max.)
Cr Ni Other
Elements
304 04Cr18Ni10 0.08 2.00 18.00-20.00 8.00-11.00 ---- Basis steel for austenitic
stainless steel tubes,featuring excellent corrosion resistance and weldability
304L 02Cr18Ni11 0.035 2.00 18.00-20.00 8.00-13.00 ---- A very low carbon steel,offering good intergranular corrosion resistance even in “as welded” condition.
310 10Cr25Ni18 0.15 2.00 24.00-26.00 19.00-22.00 ----
316 04Cr17Ni12Mo2 0.08 2.00 16.00-18.00 10.00-14.00 Mo 2.00/3.00
316L 02Cr17Ni12Mo2 0.035 2.00 16.00-18.00 10.00-15.00 Mo 2.00/3.00
321 04Cr18Ni10Ti20 0.08 2.00 17.00-20.00 9.00-13.00 Ti =5x Cmin.max 0.75
409 --- 0.08 1.00 10.50-11.75 0.50 max. Ti =6x Cmin. max. 0.75
410 12Cr13 0.15 1.00 11.50-13.50 0.50 max. ---
430 05Cr17 0.12 1.00 16.00-18.00 0.50 max. ---