Technical Information


Hardness Conversion Table Download

Vickers Hardness (HV) Brinell Hardness (HB) Rockwell (HRB) Rockwell (HRC)
80 76 - -
85 80.7 41 -
90 85.5 48 -
95 90.2 52 -
100 95 56.2 -
105 99.8 - -
110 105 62.3 -
115 109 - -
120 114 66.7 -
125 119 - -
130 124 71.2 -
135 128 - -
140 133 75 -
145 138 - -
150 143 78.7 -
155 147 - -
160 152 81.7 -
165 156 - -
170 162 85 -
175 166 - -
180 171 87.1 -
185 176 - -
190 181 89.5 -
195 185 - -
200 190 91.5 -
205 195 92.5 -
210 199 93.5 -
215 204 94 -
220 209 95 -
225 214 96 -
230 219 96.7 -
235 223 - -
240 228 98.1 20.3
245 233 - 21.3
250 238 99.5 22.2
255 242 - 23.1
260 247 101 24
265 252 - 24.8
270 257 102 25.6
275 261 - 26.4
280 266 104 27.1
285 271 - 27.8
290 276 105 28.5
295 280 - 29.2
300 285 - 29.8
310 295 - 31
320 304 - 32.2
330 314 - 33.3
340 323 - 34.4
350 333 - 35.5
360 342 - 36.6
370 352 - 37.7
380 361 - 38.8
390 371 - 39.8
400 380 - 40.8
410 390 - 41.8
420 399 - 42.7
430 409 - 43.6
440 418 - 44.5
450 428 - 45.3
460 437 - 46.1
470 447 - 46.9
480 456 - 47.7
490 466 - 48.4
500 475 - 49.1
510 485 - 49.8
520 494 - 50.5
530 504 - 51.1
540 513 - 51.7
550 523 - 52.3
560 532 - 53
570 542 - 53.6
580 551 - 54.1
590 561 - 54.7
600 570 - 55.2
610 580 - 55.7
620 589 - 56.3
630 559 - 56.8
640 608 - 57.3
650 618 - 57.8

Chemical Composition Chart Download

TYPE STANDARD C (Max) Mn (Max) P (Max) S (Max) Si (Max) Cr (Max) Ni (Max) Mo (Max) Others (Max)
AISI 201 1.4372 0.15 5.50~7.50 0.060 0.030 0.75 16.0~18.0 3.5~5.5 - N 0.25
AISI 202 1.4371 0.15 7.50~10 0.060 0.030 0.75 17.0~19.0 4.0~6.0 - N 0.25
AISI 301 1.4310 0.15 2.0 0.045 0.030 0.75 16.0~18.0 6.0~8.0 - N 0.1
AISI 302 1.4319 0.15 2.0 0.045 0.030 0.75 17.0~19.0 8.0~10.5 - N 0.1
AISI 303 1.4305 0.15 2.0 0.200 0.150 1.00 17.0~19.0 8.0~10.5 - N 0.1
AISI 304 1.4301 0.08 2.0 0.045 0.030 0.75 18.0~20.0 8.0~10.5 - Se 0.15
AISI 304L 1.4307 0.03 2.0 0.045 0.030 0.75 18.0~20.0 8.0~12.0 - N 0.1
AISI 304N 0.08 2.0 0.045 0.030 0.75 18.0~20.0 8.0~10.5 - N 0.1
AISI 304LN 1.4311 0.03 2.0 0.045 0.030 0.75 18.0~20.0 10.5~12 - N 0.01~0.16
AISI 305 1.4303 0.12 2.0 0.045 0.030 0.75 17.0~19.0 10.5~13 - N 0.01~0.16
AISI 308 0.08 2.0 0.045 0.030 0.75 19.0~21.0 10.0~12.0 - -
AISI 309 1.4828 0.2 2.0 0.045 0.030 0.75 22.0~24.0 12.0~15.0 - -
AISI 309S 1.4833 0.08 2.0 0.045 0.030 0.75 22.0~24.0 12.0~15.0 - -
AISI 310 1.4841 0.25 2.0 0.045 0.030 1.50 24.0~26.0 19.0~22.0 - -
AISI 310S 1.4845 0.08 2.0 0.045 0.030 1.50 24.0~26.0 19.0~22.0 - -
AISI 314 1.4841 0.25 2.0 0.045 0.030 1.5~3.0 23.0~26.0 19.0~22.0 - -
AISI 316 1.4401 0.08 2.0 0.045 0.030 0.75 16.0~18.0 10.0~14.0 1.75~2.25 -
AISI 316L 1.4404 0.03 2.0 0.045 0.030 0.75 16.0~18.0 10.0~14.0 2.0~3.0 -
AISI 316Ti 1.4571 0.08 2.0 0.045 0.030 0.75 16.0~18.0 10.0~14.0 2.0~3.0 N 0.01, Ti 5x(C+N)~0.7
AISI 316N 0.08 2.0 0.045 0.030 0.75 16.0~18.0 10.0~14.0 2.0~3.0 N 0.10~0.16
AISI 317 1.4949 0.08 2.0 0.045 0.030 0.75 18.0~20.0 11.0~15.0 3.0~4.0 -
AISI 317L 1.4438 0.03 2.0 0.045 0.030 0.75 18.0~20.0 11.0~15.0 3.0~4.0 -
AISI 321 1.4541 0.08 2.0 0.045 0.030 0.75 17.0~19.0 9.0~12.0 - N 0.01, Ti 5x(C+N)~0.7
AISI 329 1.4460 0.1 2.0 0.040 0.030 0.75 23.0~28.0 2.5~5.0 1.0~2.0 -
AISI 347 1.4450 0.08 2.0 0.045 0.030 0.75 17.0~19.0 9.0~13.0 - Nb+Ta 10xC%~1
AISI 348 1.4878 0.08 2.0 0.045 0.030 0.75 17.0~19.0 9.0~13.0 - Nb+Ta 10xC%~1
AISI 403 1.4024 0.15 1.0 0.040 0.030 0.50 11.5~13.0 - - -
AISI 405 1.4002 0.08 1.0 0.040 0.030 1.00 11.5~14.5 - - AI: 0.10~030
AISI 409 1.4512 0.08 1.0 0.045 0.045 1.00 10.5~11.75 - - Ti: 6xC%~0.75
AISI 410 1.4006 0.15 1.0 0.040 0.030 1.00 11.5~13.5 0.75 - -
AISI 414 0.15 1.0 0.040 0.030 1.00 11.5~13.5 1.25~2.5 - -
AISI 416 1.4024 0.15 1.25 0.060 0.150 1.00 12.0~14.0 - - -
AISI 420 1.4021 0.15 1.0 0.040 0.030 1.00 12.0~14.0 0.75 0.5 -
AISI 420J2 1.4028 0.26~0.35 1.25 0.060 0.150 1.00 12.0~14.0 0.5 - Cu 0.60
AISI 429 0.12 1.00 0.040 0.030 1.00 14.0~16.0 0.75 - -
AISI 430 1.4016 0.12 1.00 0.040 0.030 1.00 16.0~18.0 0.75 - -
AISI 430F 1.4104 0.12 1.25 0.060 0.150 1.00 16.0~18.0 - - -
AISI 430FSe 1.4104 0.12 1.25 0.060 0.060 1.00 16.0~18.0 - - Se 0.15
AISI 431 1.4057 0.20 1.00 0.040 0.030 1.00 15.0~17.0 1.25~2.5 - -
AISI 434 1.4113 0.12 1.00 0.040 0.030 1.00 16.0~18.0 - - -
AISI 440A 1.4522 0.6~0.75 1.00 0.040 0.030 1.00 16.0~18.0 - - -
AISI 440B 0.75~0.95 1.00 0.040 0.030 1.00 16.0~18.0 - - -
AISI 440C 0.95~1.20 1.00 0.040 0.030 1.00 16.0~18.0 - - -
AISI 442 0.20 1.00 0.040 0.030 1.00 16.0~18.0 - - -
AISI 446 1.4762 0.20 1.5 0.040 0.030 1.00 23.0~27.0 0.75 - N: 0.10~0.25
AISI 631 1.4568 0.99 1.00 0.040 0.030 1.00 16.0~18.0 6.5~7.5 0.4~0.65 AI 0.75~1
AISI 632 1.4532 1.00 1.2 0.040 0.030 0.70 14.0~16.0 6.5~7.5 0.4~0.65 AI 0.75~1
AISI 904L 1.4939 0.20 2.0 0.045 0.035 1.00 19.0~23.0 23.0~28.0 4.0~5.0 -

CHEMICAL COMPOSITION CHART FOR DUPLEX & SUPER DUPLEX

TYPE STANDARD C (Max) Mn (Max) P (Max) S (Max) Si (Max) Cr (Max) Ni (Max) Mo (Max) Others (Max)
S32205 1.4462 0.03 2.00 0.030 0.020 1.00 21.0-23.0  4.5-6.5 2.5-3.5  0.08-0.20
S32550 1.4507 0.04 1.50 0.040 0.030 1.00 24.0-27.0 4.5-6.5 2.9-3.9 0.10-0.25
S32750 1.4410 0.03 1.20 0.035 0.020 0.80 24.0-26.0  6.0-8.0 3.0-5.0 0.24-0.32
S32760 1.4501 0.03 1 0.030 0.010 1.00 24.0-26.0  6.0-8.0 3.0-4.0 0.20-0.30

Chemical Composition for Nickel Alloys Download

TYPE C% Co% Cr% Mo% Ni% V% W% Ai% Cu% Nb/Cb Ta% Ti% Fe% Other%
Monel 400 0.12 - - - 65.0 - - - 32 - - 1.5 Mn 1.0
Monel 401 0.1 - - - 43.0 - - - 53 - - 0.75 Si 0.25; Mn 2.25
Monel 404 0.15 - - - 52.0-57.0 - - 0.05 rest/bal - - 0.5 Mn 0.10; Si 0.10; S 0.024
Monel 502 0.1 - - - 63.0-17.0 - - 2.5-3.5 rest/bal - 0.5 2.0 Mn 1.5; Si 0.5; S 0.010
Monel K 500 0.13 - - - 64.0 - - 2.8 30.0 - 0.6 1 Mn 0.8
Monel R 405 0.15 - - - 66.0 - - - 31.0 - - 1.2 Mn 1.0; S 0.04
Hastelloy B 0.1 1.25 0.6 28.0 rest/bal 0.3 - - - - - 5.5 Mn 0.80; Si 0.70
Hastelloy B2 0.02 1.0 1.0 26.0-30.0 rest/bal - - - - - - 2.0 Mn 1.0; Si 0.10
Hastelloy C 0.07 1.25 16.0 17.0 rest/bal 0.3 40.0 - - - - 5.75 Mn 1.0; Si 0.70
Hastelloy C4 0.015 2.0 14.0-18.0 14.0-18.0 rest/bal - - - - - 0.7 3.0 Mn 1.0; Si 0.08
Hastelloy C276 0.02 2.5 14.0-16.5 15.0-17.0 rest/bal 0.35 3.0-4.5 - - - - 4.0-7.0 Mn 1.0; Si 0.05
Hastelloy F 0.02 1.25 22.0 6.5 rest/bal - 0.5 - - 2.1 - 21.0 Mn 1.50; Si 0.50
Hastelloy G 0.05 2.5 21.0-23.5 5.5-7.5 rest/bal - 1.0 - 1.5-2.5 1.75-2.5 - 18.0-21.0 Mn 1.0-2.0; p 0.04; Si 1.0; 80.03
Hastelloy G-2 0.03 - 23.0-26.0 5.0-7.0 47.0-52.0 - - - 0.70-1.20 - 0.70-1.50 rest/bal Mn 1.0; Si 1.0
Hastelloy N 0.06 0.25 7.0 16.5 rest/bal - 0.2 - 0.1 - - 3.0 Mn 0.40; Si 0.25; B 0.01
Hastelloy S 0.02 2.0 15.5 14.5 rest/bal 0.6 1.0 0.2 - - - 3.0 Mn 0.50; Si 0.40; B 0.0009; LA 0.02
Hastelloy W 0.06 1.25 5.0 24.5 rest/bal - - - - - - 5.5 Mn 0.05; Si 0.50
Hastelloy X 0.1 1.5 22.0 9.0 rest/bal - 0.6 - - - 18.5 - Mn 0.6; Si 0.6
Incoloy 600 0.05 - 15.5 - 75.0 - - - - - - 8.0 -
Incoloy 601 0.05 - 23.0 - 60.0 - - 1.4 - - - 14.0 -
Incoloy 604 0.04 - 15.8 - rest/bal - - - 0.1 2.0 - 7.2 Mn 0.2; Si 0.2
Incoloy 610 0.2 - 15.5 - rest/bal - - - 0.5 1.0 - 9.0 Mn 0.90; Si 2.0
Incoloy 617 0.07 12.5 22.5 9.0 54.0 - - 1.0 - - - - -
Incoloy 625 0.05 - 21.5 9.0 61.0 - - 0.4 - 3.65 0.4 2.5 Mn 0.5; Si 0.5
Incoloy 671 0.05 - 48.0 - - - - - - - 0.35 - -
Incoloy 700 0.12 28.5 15.0 3.8 46.0 - - 3.0 0.05 - 2.2 0.7 Mn 0.1; Si 0.3
Incoloy 702 0.04 - 15.6 - rest/bal - - 3.4 0.1 - 0.7 0.35 Mn 0.05; Si 0.2
Incoloy 705 0.03 - 15.5 - rest/bal - - - 0.5 - - 8.0 Mn 0.9; Si 5.5
Incoloy 800 0.04 - 21.0 - 32.0 - - 0.3 - - 0.4 45.0 -
Incoloy 800 H 0.08 - 21.0 - 32.0 - - 0.3 - - 0.4 45.0 -
Incoloy 801 0.05 - 20.5 - 32.0 - - - - - 1.1 45.0 -
Incoloy 802 0.35 - 21.0 - 32.0 - - 0.6 - - 0.7 45.0 -
Incoloy 804 0.05 - 29.5 - 41.0 - - 0.3 - - 0.6 25.4 -
Incoloy 805 0.12 - 7.5 0.5 36.0 - - - 0.1 - - rest/bal Mn 0.6; Si 0.5
Incoloy 810 0.25 - 21.0 - 32.0 - - - 0.5 - - rest/bal Mn 0.9; Si 0.8
Incoloy 825 0.04 - 21.0 3.0 42.0 - - - 2.0 - 1.0 30.0 -
Incoloy 825 Cp 0.04 - 21.5 3.0 42.0 - - - 2.2 0.9 - 30.0 -
Incoloy 840 0.08 - 20.0 - 20.0 - - - - - - rest/bal Mn 1.0; Si 1.0
Incoloy 901 0.05 - 12.5 6.0 rest/bal - - 0.15 - - 2.7 34.0 Mn 0.24; Si 0.12; B 0.015
Incoloy 901 Mod 0.05 - 12.5 5.8 rest/bal - - - - - 2.9 34.0 Mn 0.09; Si 0.08; B 0.015
Incoloy 903 0.02 15.0 - - 38.0 - - 0.7 - 3.0 1.4 41.0 -
Incoloy 904 0.02 - 14.0 - - 33.0 - - - - 1.7 50.0 -
Incoloy DS 0.06 - 18.0 - 37.0 - - - - - - 42.0 Mn 1.0; Si 2.3
Incoloy Ma 956 - - 20.0 - - - 4.5 - - 0.5 0.5 74.4 Y 2.03 0.5

Weight Calculator Download

FORMULA FOR WEIGHT CALCULATION:

Weight of S.S. Sheets & Plates :

Length (Mtrs) x Width (Mtrs) x Thick (mm) x 8 = Kg. Per Sheet.

Length (Ft) x Width (Ft) x Thick (mm) x 3/4 = Kg. Per Sheet.

Length (mm) x Width (mm) x Thick (mm) x 0.000008 = Kg. Per Sheet.

Weight of S.S. Flat Bar :

Width (mm) x Thick (mm) x 0.00798 = Wt: Per Mtr.

Width (mm) x Thick (mm) x 0.00243 = Wt: Per Feet.

Weight of S.S. Circle:

DIA (mm) x DIA (mm) x Thick (mm) : 160 = Gms. Per Pc

DIA (mm) x DIA (mm) x Thick (mm) x 0.0000063 = Kg. Per Pc.

Weight of S.S. Pipe:

OD (mm) - Wall Thickness (mm) x Wall Thickness (mm) x 0.0248 = Wt: Per Mtr.

OD (mm) - Wall Thickness (mm) x Wall Thickness (mm) x 0.00756 = Wt: Per Feet.

Weight of S.S. Round Bar:

DIA (mm) x DIA (mm) x 0.00623 = Wt: Per Mtr.

DIA (mm) x DIA (mm) x 0.0019 = Wt: Per Feet.

Weight of S.S. Square Bar :

Sq. (mm) x Sq. (mm) x 0.00788 = Wt: Per Mtr.

Sq. (mm) x Sq. (mm) x 0.0024 = Wt: Per Feet.

Weight of S.S. Hexagonal Bar :

A/F (mm) x A/F (mm) x 0.00680 = Wt: Per Mtr.

A/F (mm) x A/F (mm) x 0.002072 = Wt: Per Feet.

Conversion of Mtr to Feet :

1 Mtr. X 3.2808 = Feet.

Application Download

300 Series
European Steel Designation AISI Nearest Fit Service Properties
1.431 301 Particularly suitable for components requiring stretch forming, high strength or good spring properties, with resistance to atmosphere corrosion. Its bright, attractive surface make it an excellent choice for decorative structural applications, Springs, Pressings, Connectors and Chemically Etched Components.
X10 Cr Ni 18-8
1.431 304 The most popular grade in the austenitic (300) series, exhibiting good corrosion resistance and formability. 1.4301 (AISI 304) can be used in the welded condition in mild environments. Used for a wide variety of home and commercial applications. One of the most familiar & frequently used alloys in the stainless steel family. Common applications include Sanitary, Cryogenic and Pressure-containing applications, Home and Commercial Appliances, Tank Structural parts and processing equipments, utensils, furniture, flexibles and many more.
X5 Cr Ni 18-10
1.4307 304L Reduced Carbon content for better corrosion resistance in welded structures than the base grade 1.4301 (AISI 304). Used for a wide variety of home and commercial applications. One of the most familiar & frequently used alloys in the stainless steel family. Common applications include deep drawing, Sanitary, Cryogenic and Pressure-containing applications, water tube, bellows, pressings, utensils, diapharms etc.
X2 Cr Ni 18-9
1.4306
X2 Cr Ni 19-11
1.4303 305 Nickel content is increased compared with the base grade 1.4301 (AISI 304) to lower the work hardening rate. Preferred for deep drawing or spinning operations. Used for a wide variety of applications. Another frequently used alloy, including applications where good corrosion resistance & excellent drawing ability is needed. Examples include Writing instruments, Utensils, Tank covers and drawn housings.
X4 Cr Ni 18-12
1.4828 Type 309 Used for elevated temperature applications, including Furnace parts – conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, baskets and trays to hold small parts; Containers for hot concentrated acids, ammonia and sulfur dioxide; contact with hot acetic and citric acid.
1.4841/1.4845 Type 310/S Corrosion resistant, including furnace parts such as conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, and baskets and trays to hold small parts. Chemical process industry to contain hot concentrated acids, ammonia, and sulfur dioxide and in the food processing industry, they are used in contact with hot acetic and citric acid.
1.4401 316 Molybdenum is added to increase the corrosion resistance when compared with the base grade 1.4301 (AISI 304) Two alloys are produced having increased corrosion resistance with increasing Molybdenum. Used for elevated temperature applications, including handling hot organic and fatty acids, boat rails and hardware and facades of buildings near the ocean, cable ties, bursting disc, seals, bellows, gaskets, tubes diaphragms ad components in chemical, petrochemical and marine applications.
X5 Cr Ni Mo 17-12-2
&
1.4436
X3 Cr Ni Mo 17-13-3
1.4404 316L Reduced Carbon content for better welded corrosion resistance than 1.4401 / 1.4436 (AISI 316). Used for elevated temperature applications, including handling hot organic and fatty acids, boat rails and hardware and facades of buildings near the ocean, cable ties, bursting disc, seals, bellows, gaskets,tubes diaphragms ad components in chemical, petrochemical and marine applications.
X2 Cr Ni Mo 17-12-2
1.4432
X2 Cr Ni Mo 17-12-3
1.4435
X2 Cr Ni Mo 18-14-3
1.4438 Type 317/L More resistant to general corrosion and pitting/crevice corrosion than the conventional chromium-nickel austenitic stainless steels. These alloys offer high tensile strength at elevated temperature.
1.4541 321 Titanium is added to oppose chromium carbide precipitation and remove the risk of deteriorating corrosion performance in welded structures as may occur in the base grade 1.4301 (AISI 304). A stabilized stainless steel which offers excellent resistance to corrosion following exposure to temperature between 800-1500 Deg F. Applications include Boiler and Pressure Vessels, Expansion joints, seals, bellows, gaskets, honeycomb seals, thermal insulation, tube and bellows. The use of “stabilized” grades is favoured by the aerospace industry,particularly in engine related applications.
X6 Cr Ni Ti 18-10
1.455 347 Niobium is added to oppose chromium carbide precipitation in the same way as Titanium is used in the alloy 1.4541 above. Stabilized stainless steel, which offers excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation, rages from 800 to 1500 Deg F. Radiant heaters.
X6 Cr Ni Nb 18-10
400 Series
European Steel Designation AISI Nearest Fit Service Properties
1.4002 Type 405 A ferritic steel, used especially for welding applications.
1.4512 Type 409/L Cheapest type; used for automobile exhausts; ferritic (iron/chromium only).
1.4024 Type 416 Easy to machine due to additional sulfur.
1.4016 430 Lower Chrome and the absence of Nickel result in a lower work hardening rate than austenitic grades resulting in a lower breaking strength especially when fully temper rolled. Most often used in the annealed (soft) condition this grade has good formability and a moderate corrosion resistance. Unlike the austenitic grades the ferritic steels respond strongly to a magnet. When temper rolled and annealed the surface finish is reflective. It is significantly lower cost than the austenitic grades. Can only be hardened by cold work. Used for Decorative steel, Automotive and domestic appliance trim, domestic sinks,domestic washer drums, floppy disc hub and pressings generally.
X6 Cr 16
1.4113 434 This grade has improved corrosion resistance compared with 1.4016 due to the addition of 1.0% Molybdenum. A favourite choice for up market automotive trim. Applications are found where there is a need to retain a good appearance.
X6 Cr Mo 16-1
1.4605 Type 18-SR This steel has similar characteristics to the base ferritic grade 1.4016 and with improved high temperature resistance to scaling and increased electrical resistance. It is used in heat exchangers; electrical resistance applications such as dynamic braking and overload resistors.
X2 Cr Al Ti 18-2
1.4006 410 This grade of stainless steel can be hardened by heat treatment and therefore has a wide range of mechanical properties. It has low resistance to corrosion when compared with austenitic grades, but this is balanced by a low cost. This grade strongly responds to a magnetic field. martensitic (high-strength iron/chromium). Wear-resistant, but less corrosion-resistant. Used for Springs & Pressings
X12 Cr 13
1.4028 420 Properties very similar to those of 1.4006, this grade, with increased Carbon content, has improved potential hardness and wear / abrasion resistance.Cutlery Grade martensitic; springs, knives and cutting edges generally, doctor blades and similar printing industry wear and scraping applications. Excellent polishability.
X30 Cr 13
1.4122 - With the addition of 1% Molybdenum and increased Chromium this alloy has improved corrosion resistance and hardenability.
X39 Cr Mo 17-1
1.4522 Type 440 A higher grade of cutlery steel, with more carbon in it, which allows for much better edge retention when the steel is heat-treated properly.
1.4762 Type 446 For elevated temperature service.
17-7 PH (Precipitation Hardening)
European Steel Designation AISI Nearest Fit Service Properties
1.4568 631 Improved corrosion resistance when compared with martensitic steels although less so than the base grade austenitic stainless steel 1.4301 (AISI 304); good formability in the soft condition; good fatigue life after hardening; high cost heat treatment from the solution annealed condition; low cost heat treatment from the temper rolled condition; high strength and stress relaxation properties. Used for Springs, Pressings, Diaphragms, encapsulated bellows,flexures, fluid seal springs etc.
X7 Cr Ni Al 17-7
1.4532 632 As above although slightly higher mechanical properties can be achieved following heat treatment; used for Gears, Valves & Other Engine Components, High Strength Shafts, Turbine Blades, Moulding Dies, Nuclear Waste Casks.
X8 Cr Ni Mo Al 15-7-2
Duplex & Super Duplex
European Steel Designation AISI Nearest Fit Service Properties
1.4362* S 39230* (Replaces S32304) 1.4362* has a general corrosion resistance equal to or better than 1.4301/1.4307 (AISI 304/304L) Duplex stainless steels generally have excellent resistance to corrosion and particularly to stress corrosion cracking when exposed to chloride bearing conditions. When compared with austenitic stainless steels the duplex steels have a high yield strength roughly double in the annealed condition offering considerable design advantages weight for weight. The duplex stainless steels can be strengthened by cold rolling to a high mechanical strength and exhibit a high resistance to relaxation therefore good spring properties. Used in Chemical, petrochemical, pressure vessels and oilfield plant as pipe-work, fabrications and gaskets.
X2 Cr Ni N 23-4*
1.4462* S 39209 (Replaces S 31803/ S 32205) 1.4462 has a general corrosion resistance equal to or better than 1.4401/1.4404 (AISI 316/316L). Used in Chemical, petrochemical and oilfield plant as pipe- work, fabrications, gaskets and oil field applications where there is exposure to sulphide stress corrosion cracking.
X2 Cr Ni Mo N 22-5-3
1.4410* S 39275* (Replaces S 32750) 1.4410 in addition to excellent general corrosion resistance this grade is highly resistant to corrosion by organic acids even at elevated temperatures. Used in oil field applications where there is exposure to sulphide stress corrosion cracking.
X2 Cr Ni Mo N 25-7-4