Text of AUSTENITIC STAINLESS STEELS: Grade Designation Equivalent
Shrenik Steels Book-Curve“THIS INFORMATION IS PRESENTED AS A GUIDE
FOR MATERIAL SELECTION. SHRENIK STEELS PVT LTD. MAKES NO EXPRESSED
OR IMPLIED WARRANTY FOR MATERIALS SELECTED SOLELY ON THE BASIS OF
THE INFORMATION CONTAINED HEREIN AND BEARS NO RESPONSIBILITY FOR
ANY SELECTION MADE ON THE BASIS OF INFORMATION CONTAINED HEREIN
.”
AISI Condition UTS YS % El
Type Kg/mm2 (0.2% Offset) in 50 mm. R. A. %
min. Kg/mm2 min. min. min.
AUSTENITIC
202 “ 53.0 28.0 40 45
302 “ 53.0 21.0 40 50
304
316
316L
(Hot finished)
FERRITIC
446 “ 49.0 28.0 20 45
MERTENSITIC
414 Annealed - - - -
Typical Mechanical Properties of Stainless Steel Bars
“THIS INFORMATION IS PRESENTED AS A GUIDE FOR MATERIAL SELECTION.
SHRENIK STEELS PVT LTD. MAKES NO EXPRESSED OR IMPLIED WARRANTY FOR
MATERIALS SELECTED SOLELY ON THE BASIS OF THE INFORMATION CONTAINED
HEREIN AND BEARS NO RESPONSIBILITY FOR ANY SELECTION MADE ON THE
BASIS OF INFORMATION CONTAINED HEREIN .”
AISI Condition UTS YS % El Hardness
Type Kg/mm2 (0.2% Offset) in 50 mm. Max
min. Kg/mm2 mm. min. RB.
AUSTENITIC
202 “ 63.5 31.5 40.0 -
304 L “ 49.0 17.5 40.0 94
309 “ 53.0 21.0 40.0 95
310 “ 53.0 21.0 40.0 95
316 “ 53.0 21.0 40.0 96
316L “ 49.0 17.5 40.0 96
317 “ 53.0 21.0 35.0 96
321 “ 53.0 21.0 40.0 94
347 “ 53.0 21.0 40.0 94
FERRITIC
MERTENSITIC
Typical Mechanical Properties of Stainless Steel Sheets /
Plates
“THIS INFORMATION IS PRESENTED AS A GUIDE FOR MATERIAL SELECTION.
SHRENIK STEELS PVT LTD. MAKES NO EXPRESSED OR IMPLIED WARRANTY FOR
MATERIALS SELECTED SOLELY ON THE BASIS OF THE INFORMATION CONTAINED
HEREIN AND BEARS NO RESPONSIBILITY FOR ANY SELECTION MADE ON THE
BASIS OF INFORMATION CONTAINED HEREIN .”
Typical Characteristics and Applications of Stainless Steels.
AISITypeCharacteristics Typical Applications
304 General purpose stainless steal specially for welded
construction,
304L Low carbon modification of type 304, restricts carbide
precipitation during welding.
321 Stabilized 18/8 type with titanium; Not
sensitive to intergranular corrosion within the
carbide precipitation range of 420 to 870°C, corrosion resistance
comparable to 304.
347 Stablized 18/8 type with columbium. Corrosion resistance
comparable to type 304.
316 High creep strength, superior corrosion
resisting properties in reducing atmosphere.
316L Low. carbon modification of 316.
310 Excellent high temperature properties with good ductility &
weldability,
FERRITIC
useful mechanical properties & good formability. Not hardenable
by heat treatment.
MERTENSITIC
hardenable by heat treatment.
steel; gives maximum corrosion resistance after heat treatment
Hardenable by heat treatment.
420 Good ductility in annealed condition ; hardenable to highest
hardness of all 12%Crtypes; gives best corrosion resistance
properties in hardened, ground or polished condition.
Widely used for severely formed parts.
For welded construction and heavy wall vessels formed in a number
of draws.
For welded construction ensuring superior results in overcoming the
problam of carbide precipitation in the weld zone without post
annealing. Can be used in range of 420-
0820 C for upto 4 hrs. without becoming susceptible to
intergranular corrosion
Used in Oxidising corrosive environments within 420 to 0870 C for
welded construction. No annealing required after
welding.
0 Used within 420-870 C for welded construction. No annealing
required after welding.
Used in industries in such medias as Sulphurous acid. Sulphuric
acid. Phosphoric acid, formic acids & various organic acids for
better corrosion resistance than 18/8 type.
Used in Place of 316 for maximum corrosion resistance properties.
Applied when annealing after welding is impossible.
0Used upto 1150 C for continuous service & 1050 for
intermittent service in oxidising atmosphere.
Utensiis, hardwares, fasteners, appliances, furnace parts. Nitric
acid processing equipments etc.
Reactor components, turbine blades and rings & other highly
stressed parts.
Cutlery, shafts, cracking tower, bubbler caps & trays for oil
& gas industry, beater bars for paper & pulp industries
etc.
Cutlery, surgical instruments, valves etc.
AISI Type
AUSTENITIC
*Austenitic stainless steels are not hardenable by heat treatment.
These can be hardened by cold work only.
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COMPARISON OF AISI AND SAE STAINLESS STEEL STANDARDS WITH
APPROXIMATELY
USA West Germany Great Britain Poland Romania Soviet Union
Stan- DIN BS970: En Steel Spec Spec. AISI SAE dard designation Part
replaced no. Type no. Type GOST
no. 4:1970 PN STAS
Hungary Bulgaria East Germany Franca Italy Japan
Spec. Spec. Spec. Charac- CSN no. Type no. Type no. Type teristic
AFNOR UN1 Notation
MSZ BDS TGL number
Czecho- slovakia