Technical Information
ASTM 193/194/A320Specifications Standard Thread Pitches STAINLESS STEEL Chemical Composition
STAINLESS STEEL Mechanical Properties Grade Equivalent Table Typical Application
FORMULA OF WEIGHT    
ASTM 193/194/A320Specifications
ASTM 193
GRADES
B7 Alloy steel, AISI 4140/4142 quenched and tempered
B8 Class 1 Stainless steel, AISI 304, carbide solution treated.
B8M Class 1 Stainless steel, AISI 316, carbide solution treated.
B8 Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
B8M Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened
MECHANICAL PROPERTIES
Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min
B7 Up to 2-1/2 125 105 16 50
2-5/8 - 4 115 95 16 50
4-1/8 - 7 100 75 18 50
B8 Class 1 All 75 30 30 50
B8M Class 1 All 75 30 30 50
B8 Class 2 Up to 3/4 125 100 12 35
7/8 - 1 115 80 15 35
1-1/8 - 1-1/4 105 65 20 35
1-3/8 - 1-1/2 100 50 28 45
B8M Class 2 Up to 3/4 110 95 15 45
7/8 - 1 100 80 20 45
1-1/8 - 1-1/4 95 65 25 45
1-3/8 - 1-1/2 90 50 30 45
RECOMMENDED NUTS AND WASHERS
Grade Nuts Washers
B7 A194 Grade 2H F436
B8 Class 1 A194 Grade 8 SS304
B8M Class 1 A194 Grade 8M SS316
B8 Class 2 A194 Grade 8, strain hardened SS304
B8M Class 2 A194 Grade 8M, strain hardened SS316
ASTM A 194 GRADE
Mechanical Properties
Grade Identification Markings
Grade Identification Marking5 Specification Material Nominal Size, In. Tempering Temp. °F Proof Load Stress, ksi Hardness Rockwell See Note
Min Max
2 ASTM A194 Grade 2 Medium Carbon Steel 1/4 - 4 1000 150 159 352 1,2,3
2H ASTM A194 Grade 2H Medium Carbon Steel, Quenched and Tempered 1/4 - 4 1000 175 C24 C38 1,2
2HM ASTM A194 Grade 2HM Medium Carbon Steel, Quenched and Tempered 1/4 - 4 1000 150 159 237 1,2,3
4 ASTM A194 Grade 4 Medium Carbon Alloy Steel, Quenched and Tempered 1/4 - 4 1100 175 C24 C38 1,2
7 ASTM A194 Grade 7 Medium Carbon Alloy Steel, Quenched and Tempered 1/4 - 4 1100 175 C24 C38 1,2
7M ASTM A194 Grade 7M Medium Carbon Alloy Steel, Quenched and Tempered 1/4 - 4 1100 150 159 237 1,2,3
8 ASTM A194 Grade 8 Stainless AISI 304 1/4 - 4 - 80 126 300 4
8M ASTM A194 Grade 8M Stainless AISI 316 1/4 - 4 - 80 126 300 4
 
ASTM 194 NUT DIMENSIONS
Nominal Size  F C H Weight
Width Across Flats  Width Across Corners Thickness Per Nut
Basic Max Min Max Min Basic Max Min  
3/8 11/16 0.688 0.669 0.794 0.763 23/64 0.377 0.341 0.03
1/2 7/8 0.875 0.850 1.010 0.969 31/64 0.504 0.464 0.07
5/8 1-1/16 1.062 1.031 1.227 1.175 39/64 0.631 0.587 0.12
3/4 1-1/4 1.250 1.212 1.443 1.382 47/64 0.758 0.710 0.20
7/8 1-7/16 1.438 1.394 1.660 1.589 55/64 0.885 0.833 0.30
1 1-5/8 1.625 1.575 1.876 1.796 63/64 1.012 0.956 0.43
1-1/8 1-13/16 1.812 1.756 2.093 2.002 1-7/64 1.139 1.079 0.59
1-1/4 2 2.000 1.938 2.309 2.209 1-7/32 1.251 1.187 0.79
1-3/8 2-3/16 2.188 2.119 2.526 2.416 1-11/32 1.378 1.310 1.02
1-1/2 2-3/8 2.375 2.300 2.742 2.622 1-15/32 1.505 1.433 1.31
1-5/8 2-9/16 2.562 2.481 2.959 2.828 1-19/32 1.632 1.556 1.62
1-3/4 2-3/4 2.750 2.662 3.175 3.035 1-23/32 1.759 1.679 2.04
1-7/8 2-15/16 2.938 2.844 3.392 3.242 1-27/32 1.886 1.802 2.41
2 3-1/8 3.125 3.025 3.608 3.449 1-31/32 2.013 1.925 2.99
2-1/4 3-1/2 3.500 3.388 4.041 3.862 2-13/64 2.251 2.155 4.19
2-1/2 3-7/8 3.875 3.750 4.474 4.275 2-29/64 2.505 2.401 5.64
2-3/4 4-1/4 4.250 4.112 4.907 4.688 2-45/64 2.759 2.647 7.38
3 4-5/8 4.625 4.475 5.340 5.102 2-61/64 3.013 2.893 9.50
3-1/4 5 5.000 4.838 5.774 5.515 3-3/16 3.252 3.124 11.94
3-1/2 5-3/8 5.375 5.200 6.207 5.928 3-7/16 3.506 3.370 15.26
3-3/4 5-3/4 5.750 5.562 6.640 6.341 3-11/16 3.760 3.616 18.12
4 6-1/8 6.125 5.925 7.073 6.755 3-15/16 4.014 3.862 21.80
Dimensions per ASME B18.2.2 1987 (1999)
 
ASTM A320 Grades
L7 Alloy steel, AISI 4140/4142 Quenched and tempered
L43 Alloy steel, AISI 4340 Quenched and tempered
B8 Class 1 Stainless steel, AISI 304, carbide solution treated
B8M Class 1 Stainless steel, AISI 316, carbide solution treated
B8 Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened
B8M Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened
Mechanical Properties
Grade Size Tensile,
ksi, min
Yield,
ksi, min
Charpy Impact
20-ft-lbf
@ temp
Elong,
%, min
RA, %, min
L7 Up to 21/2 125 105 -150° F 16 50
L43 Up to 4 125 105 -150° F 16 50
B8
Class 1
All 75 30 N/A 30 50
B8M
Class 1
All 75 30 N/A 30 50
B8
Class 2
Up to 3/4 125 100 N/A 12 35
7/8 - 1 115 80 N/A 15 35
11/8 - 11/4 105 65 N/A 20 35
13/8 - 11/2 100 50 N/A 28 45
B8M
Class 2
Up to 3/4 110 95 N/A 15 45
7/8 - 1 100 80 N/A 20 45
11/8 - 11/4 95 65 N/A 25 45
13/8 - 11/2 90 50 N/A 30 45
Recommended Nuts and Washers
Grade Nuts Washers
L7 A194 Grade 4 or 7 F436
L43 A194 Grade 4 or 7 F436
B8 Class 1 A194 Grade 8 SS304
B8M Class 1 A194 Grade 8M SS316
B8 Class 2 A194 Grade 8, strain hardened SS304
B8M Class 2 A194 Grade 8M, strain hardened SS316
 
Standard Thread Pitches
Coarse Thread Series - UNC Fine Thread Series - UNF 8-Thread Series - 8UN
Nominal Size and Threads Per In. Basic Pitch Dia. Section at Minor Dia. Tensile Stress Area Nominal Size and Threads Per In. Basic Pitch Dia. Section at Minor Dia. Tensile Stress Area Nominal Size and Threads Per In. Basic Pitch Dia. Section at Minor Dia. Tensile Stress Area
In. Sq in. Sq in. In. Sq in. Sq in. In. Sq in. Sq in.
--    -- -- -- -- 0 - 80 0.0519 0.00151 0.00180 --    -- -- -- --
1 - 64 0.0629 0.00218 0.00263 1 - 72 0.0640 0.00237 0.00278
2 - 56 0.0744 0.00310 0.00370 2 - 64 0.0759 0.00339 0.00394
3 - 48 0.0855 0.00406 0.00487 3 - 56 0.0874 0.00451 0.00523
4 - 40 0.0958 0.00496 0.00604 4 - 48 0.0985 0.00566 0.00661 --    -- -- -- --
5 - 40 0.1088 0.00672 0.00796 5 - 44 0.1102 0.00716 0.00830
6 - 32 0.1177 0.00745 0.00909 6 - 40 0.1218 0.00874 0.01015
8 - 32 0.1437 0.01196 0.0140 8 - 36 0.1460 0.01285 0.01474
10 - 24 0.1629 0.01450 0.0175 10 - 32 0.1697 0.0175 0.0200 --    -- -- -- --
12 - 24 0.1889 0.0206 0.0242 12 - 28 0.1928 0.0226 0.0258 --    -- -- -- --
1/4 - 20 0.2175 0.0269 0.0318 1/4 - 28 0.2268 0.0326 0.0364 --    -- -- -- --
5/16 - 18 0.2764 0.0454 0.0524 5/16 - 24 0.2854 0.0524 0.0580 --    -- -- -- --
3/8 - 16 0.3344 0.0678 0.0775 3/8 - 24 0.3479 0.0809 0.0878 --    -- -- -- --
7/16 - 14 0.3911 0.0933 0.1063 7/16 - 20 0.4050 0.1090 0.1187 --    -- -- -- --
1/2 - 13 0.4500 0.1257 0.1419 1/2 - 20 0.4675 0.1486 0.1599 --    -- -- -- --
9/16 - 12 0.5084 0.162 0.182 9/16 - 18 0.5264 0.189 0.203 --    -- -- -- --
5/8 - 11 0.5660 0.202 0.226 5/8 - 18 0.5889 0.240 0.256 --    -- -- -- --
3/4 - 10 0.6850 0.302 0.334 3/4 - 16 0.7094 0.351 0.373 --    -- -- -- --
7/8 - 9 0.8028 0.419 0.462 7/8 - 14 0.8286 0.180 0.509 --    -- -- -- --
1 - 8 0.9188 0.551 0.606 1 - 12 0.9459 0.625 0.663 1 - 8 0.9188 0.551 0.606
1-1/8 - 7 1.0322 0.693 0.763 1-1/8 - 12 1.0709 0.812 0.856 1-1/8 - 8 1.0438 0.728 0.790
1-1/4 - 7 1.1572 0.890 0.969 1-1/4 - 12 1.1959 1.024 1.073 1-1/4 - 8 1.1688 0.929 1.000
1-3/8 - 6 1.2667 1.054 1.155 1-3/8 - 12 1.3209 1.260 1.315 1-3/8 - 8 1.2938 1.155 1.233
1-1/2 - 6 1.3917 1.294 1.405 1-1/2 - 12 1.4459 1.521 1.581 1-1/2 - 8 1.4188 1.405 1.492
--    -- -- -- -- --    -- -- -- -- 1-5/8 - 8 1.5438 1.68 1.78
1-3/4 - 5 1.6201 1.74 1.90 --    -- -- -- -- 1-3/4 - 8 1.6688 1.98 2.08
--    -- -- -- -- --    -- -- -- -- 1-7/8 - 8 1.7938 2.30 2.41
2 - 4-1/2 1.8557 2.30 2.50 --    -- -- -- -- 2 - 8 1.9188 2.65 2.77
2-¼ - 4-½ 2.1057 3.02 3.25 --    -- -- -- -- 2-1/4 - 8 2.1688 3.42 3.56
2-1/2 - 4 2.3376 3.72 4.00 --    -- -- -- -- 2-1/2 - 8 2.4188 4.29 4.44
2-3/4 - 4 2.5876 4.62 4.93 --    -- -- -- -- 2-3/4 - 8 2.6688 5.26 5.43
3 - 4 2.8376 5.62 5.97 --    -- -- -- -- 3 - 8 2.9188 6.32 6.51
3-1/4 - 4 3.0876 6.72 7.10 --    -- -- -- -- 3-1/4 - 8 3.1688 7.49 7.69
3-1/2 - 4 3.3376 7.92 8.33 --    -- -- -- -- 3-1/2 - 8 3.4188 8.75 8.96
3-3/4 - 4 3.5876 9.21 9.66 --    -- -- -- -- 3-3/4 - 8 3.6688 10.11 10.34
4 - 4 3.8376 10.61 11.08 --    -- -- -- -- 4 - 8 3.9188 11.57 11.81
 
Stainless Steel Chemical Composition
Grade USA - Canada/ % C  %Mn % P % S % Si % Cr % Ni % Mo %Ni Max % Cu Max % Others
AISI - ASTM - ASME Max Max Max Max Max
301 301 0.15 2 0.045 0.03 1 16.00  18.00 6.00  8.00 - 0.1 - -
304 304 0.08 2 0.045 0.03 0.75 18.00  20.00 8.00  10.50 - 0.1 - -
304H 304H 0.04 -0.10 2 0.045 0.03 0.75 18.00  20.00 8.00  10.50 - - - -
304L 304L 0.03 2 0.045 0.03 0.75 18.00  20.00 8.00  12.00 - 0.1 - -
304LN 304LN 0.03 2 0.045 0.03 0.75 18.00  20.00 8.00  12.00 - 0.10 -0.16 - -
309 309 0.2 2 0.045 0.03 0.75 22.00  24.00 12.00  15.00 - - - -
309S 309S 0.08 2 0.045 0.03 0.75 22.00  24.00 12.00  15.00 - - - -
310 310 0.25 2 0.045 0.03 1.5 24.00  26.00 19.00  22.00 - - - -
310S 310S 0.08 2 0.045 0.03 1.5 24.00  26.00 19.00  22.00 - - - -
316 316 0.08 2 0.045 0.03 0.75 16.00  18.00 10.00  14.00 2.00 3.00 0.1 - -
316L 316L 0.03 2 0.045 0.03 0.75 16.00 18.00 10.00  14.00 2.00 3.00 0.1 - -
316LN 316LN 0.03 2 0.045 0.03 0.75 16.00 18.00 10.00  14.00 2.00 3.00 0.10 -0.16 - -
316TI 316TI 0.08 2 0.045 0.03 0.75 16.00 -18.00 10.00 - 14.00 2.00 -3.00 0.1 - Ti = 5x(C+N)Min. 0.70 Max.
317 317 0.08 2 0.045 0.03 0.75 18.00 20.00 11.00 15.00 3.00 4.00 0.1 - -
317L 317L 0.03 2 0.045 0.03 0.75 18.00 20.00 11.00 15.00 3.00 4.00 0.1 - -
317LN 317LN 0.03 2 0.045 0.03 0.75 18.00 20.00 11.00 15.00 3.00 4.00 0.10 -0.22 - -
321 321 0.08 2 0.045 0.03 0.75 17.00 19.00 9.00 12.00 - 0.1 - Ti = 5x(C+N)Min. 0.70 Max.
347 347 0.08 2 0.045 0.03 0.75 17.00 19.00 9.00 13.00 - - - Cb = 10xC Min. 1.00 Max.
409 409 0.08 1 0.04 0.02 1 10.50  11.75 0.50 max. - 0.03 - Ti = 6x(C+N)Min. 0.75 Max.
409RC - 0.02 1 0.04 0.03 1 10.50  11.75 0.50 max. - 0.02 - Ti = 5x(C+N)Min. 0.75 Max.
409M - 0.03 0.8 - 1.5 0.03 0.03 1 10.80  12.50 1.50 max - 0.03 - Ti = 0.75 Min.
410 410 0.15 1 0.04 0.03 1 11.50 13.50 0.75 max. - - - -
410S 410S 0.08 1 0.04 0.03 1 11.50 13.50 0.60 max. - - - -
405 405 0.8 1 0.04 0.03 1 11.50 14.50 0.6 - - - AI = 0.10 -0.30
430 430 0.12 1 0.04 0.03 1 16.00 18.00 0.75 max. - - - -
430TI 430TI 0.03 1 0.04 0.03 1 16.00 19.00 -   - - Ti = 0.10 -1.0
436 436 0.12 1 0.04 0.03 1 16.00 18.00 - 0.75 -1.25 - - Cb = 10xC Min. 0.80 Max.
420 420 0.15 min. 1 0.04 0.03 1 12.00 14.00 0.75 max. - - - Mo = 0.50 Max.
JBS - 0.6 - 0.75 1 0.04 0.03 0.75 12.00 14.00 - 0.75 max. - - -
JSL AUS (J1) - 0.8 7.0 - 8.0 0.075 0.03 0.75 15.00 17.00 4.00 -5.00 - 0.1 1.5 -
J3 - 0.8 9.0 - 10.5 0.075 0.03 0.75 14.00 16.00 2.00 -3.00 - 0.15 2 -
  - 0.1 8.5 - 10.0 0.075 0.03 0.75 15.00 16.00 1.2 max. - 0.2 2 -
 
Stainless steel mechenical
  Mechanical Properties Comparison of Indian / Prop. Grades with various International Standards
Grade Tensile Strenght Mpa (Min.) Yield Strength Mpa (Min.) %Elongation (Min.) Hardness BHN Hardness RB INDIA / IS Letter Symbol INDIA / IS Numerical Symbol (ISS) UNS Designation GERMANY  / DIN Designation JAPAN / JIS USSR / GOST
(Max) (Max)
301 515 205 40 217 95 X10Cr17Ni7 301 S30100 X12CrNi177 SUS301 -
304 515 205 40 201 92 X04Cr19Ni9 304SI/304s2 S30400 X5CrNi1810 SUS304 08Ch18N10
X04Cr19Ni10
304H 515 205 40 201 92 - - S30409 - - -
304L 485 170 40 201 92 - - S30403 X2CrNi1911 SUS304L 03Ch18N11
G-X2CrNiN189 SCS19
304LN 515 205 40 201 92 - - S30453 X2CrNiN1810 SUS304LM -
309 515 205 40 217 92 X15Cr24Ni13 309 - X15CrNiSi2012 SUS309 20Ch20NS2
309S 515 205 40 217 95 - - S30908 X7CrNi2314 SUS309S -
310 515 205 40 217 95 X20Cr25Ni20 310 - X15CrNiSi2520 SUH310 20Ch25N20S2
310S 515 205 40 217 95 - - S31008 X12CrNi2521 SUS310S 20Ch23N18
316 515 205 40 217 95 X04Cr17Ni12Mo2 316 S31600 X5CrNiMo1722 SUS316 -
316L 485 170 40 217 95 X02Cr17Ni12Mo2 316L S31603 X2CrNiMO18143 SUS316L 3Ch17N14M3
SCS16 3Ch16N15M3
316LN 515 205 40 217 95 - - S31653 X2CrNiMoN17133 SUS316LN -
316TI 515 205 35 217 95 X04Cr17Ni12Mo2Ti S31635 316TI X6CrNiMoTi17122 - 10Ch17N13M2T
317 515 205 40 217 95 - S31700 - X5CrNiMo17133 SUS317 -
317L 515 205 40 217 95 - S31703 - X2CrNiMo18164 SUS317L -
317LN 550 240 40 217 95 - S31753 - - - -
321 515 205 40 217 95 X04Cr18Ni10Ti 321 S32100 X6CrNiTi1810 SUS321 08Ch18N10T
347 515 205 40 201 92 X04Cr18Ni10Nb 347 S34700 X6CrNiNb1810 SUS347 08Ch18N12B
409 380 205 20 179 88 - - S40900 X6CrTi12 - -
409RC 350 170 30 179 88 - - - - - -
409M 450 275 20 187 90 - - - - - -
410 450 205 20 217 96 X12Cr12 410 S41000 X10Cr13 SUS410 -
410S 415 205 22 183 89 - - S41008 - - -
405 415 170 20 179 88 X04Cr12 405 S40500 X6CrA13i SUS405 -
430 415 205 22 183 89 X07Cr17 430 S43000 X6Cr17 SUS430 -
430TI 360 175 27 179 88 - - - X6CrTi17 SUS430LX -
436 450 240 22 - 89 - - S43600 - - -
420 690 - 15 217 96 X20Cr13 420S1 S42000 X20Cr13 SUS420JI -
X30Cr13 420S2
X40Cr13 420S3
JBS - - - - - - - - - - -
JSL AUS (J1) 550 205 40 217 95 - - - - - -
J3 600 250 40 217 95 - - - - - -
J4 700 350 40 217 95 - - - - - -
 
Grade Equivalent Table
AISI / ASTM UNS British   German Swedish Japonese
Type No. BS Eu W.No. DIN SS JIS
301 S30100 301S21 - 1.431 X 12 CrNi 17 7 2331 SUS 301
302 S30200 302S25 58A 1.43 X 12 CrNi 18 8 2346 SUS 302
303 S30300 303S21 58M 1.4305 X 12 CrNiS 18 8 - SUS 303
303 Sc S30323 303S41 58M - - 2332 SUS 303Sc
304 S30400 304S15 58E 1.4301 X 5 CrNi 18 9 2352 SUS 304
304 L S30403 304S12 - 1.4306 X 2 CrNi 18 9 - SUS 304L
304 N S30451 - - - - - SUS 304N1
302 HQ S30430 - - 1.4567 - - SUS XM7
305 S30500 305S19 - 1.4312 - - SUS 305
309 S S30908 309S24 - 1.4833 X 7 CrNi 23 14 - SUS 309 S
310 S31000 310S24 - 1.4841 X 12 CrNi 25 20 - SUS 310
310 S S31008 310S16 - 1.4845 X 12 CrNi 25 21 2361 SUS 310 S
  S31254 - - - - 2378 -
314 S31400 - - 1.4841 X 15 CrNi 25 20 - -
316 S31600 316S16 58H,58J 1.4401 X 5 CrNiMo 18 10 2347 SUS 316
316 L S31603 316S12 - 1.4404 X 2 CrNiMo 18 10 2348 SUS 316 L
316 N S31651 - - 1.4406 X 2 CrNiMoN 18 12 - SUS 316 N
316 TI S31635 320S17 - 1.4571 X 10 CrNiMoTi 18 10 2350 -
317 S31700 317S16 - 1.4449 X 5 CrNiMo 17 13 - SUS 317
317 L S31703 317S12 - 1.4438 X 2 CrNiMo 18 16 2367 SUS 317 L
321 S32100 32S12 58B,58C 1.4541 X 10 CrNiTi 18 9 2337 SUS 321
329 S32900 - - 1.446 X 8 CrNiMo 27 5 2324 SUS 329J1
347 S34700 347S17 58F, 58G 1.455 X 10 CrNiNb 18 9 2338 SUS 347
348 S34800 347S18 - 1.4546 X 5 CrNiNb 18 10 - -
384 S38400 - - - - - SUS 384
403 S40300 403S17 - 1.4 X 7 Cr 13< - SUS 403
405 S40500 405S17 - 1.4002 X 7 CrAl 13 2301 SUS 405
409 S40900 409S19 - 1.4512 X 5 CrTi 12 - SUS 409
410 S41000 410S21 56A 1.4006 X 10 Cr 13 2302 SUS 410
416 S41600 416S21 56AM 1.4005 X 12 CrS 13 2380 SUS 416
416Se S41623 - - - - - -
420 S42000 420S37 56C 1.4021 X 20 Cr 13 2303 SUS 420J1
420F S42020 - - - - - SUS 420F
430 S43000 430S17 60 1.4016 X 8 Cr 17 2320 SUS 430
430F S43020 - - 1.4104 X 12 CrMoS 17 2383 SUS 430F
431 S43100 431S29 57 1.4057 X 22 CrNi 17 2321 SUS 431
434 S43400 434S17 - 1.4113 X 6 CrMo 17 - SUS 434
440C S44044 - - 1.4125; X 105 CrMo 17 - SUS 440C
444 S44400 - - 1.4521 X 2 CrMoTi 18 2 2326 SUS 444
630 S17400 - - 1.4542 X 5 CrNiCuNb 17 4 - SUS 630
631 S17700 - - 1.4568 X 7 CrNiAl 17 7 2388 SUS 631
+ N08904 904S13 - 1.4539 X 1 NiCrMoCuN 25 20 5 2562 -
+ S30815 - - 1.4893 - 2377 -
+ S31803 - - 1.4462 X 2 CrNiMoN 22 5 2327 -
+ S32304 - - 1.4362 - 2328 -
+ S32750 - - - X 2 CrNiMoN 25 7 4 - -
+ S34565 - - 1.4565 X 2 CrNiMnMoN 24 17 6 4 - -
+ S32760 - - 1.4501 X 2 CrNiMoCuWN 25 7 4 - -
 
Typical Application
Grade Characteristics Typical Applications 
304L Low Carbon level (0.03 max.) Used for parts and structures which can
Austenitic Improved resistance to not be heat treated for stress relieving
  intergranular corrosion. after welding less tendency to work
    hardening.
310S High Creep strength and look heaters annealing boxes
Austenitic mechanical properties at Ovens
  higher temperature Carburising boxes
    Fire box sheets
    Furnace lining
    Furnace stacks, and dampers
    Gas turbine parts
    Heat exchangers
    Kiln lining
    Nozzle diaphragm assemblies for turbo jet engines
    Oil burner parts
    Paper mill equipment
    Oil refinery equipment
    Recuperators
316L Reduced tendency towards For parts which cannot be heat treated
Austenitic carbide precipitation. after welding.
304 Excellent corrosion Chemical, petrochemical and fertiliser industries and as an equipment in dairy
Austenetic resistance & forming Food processing
  characteristics. Pharmaceutical Industries
    Hospitals
    Households as Kitchenware
    Cryogenic
    Vessels
    Heat exchangers in Air conditioning
    Refrigerator,
    For machinery in paper, pulp, textile, beverage sector
    Architectural applications as panels, curtain walls, roofing
301 Able to attain high strength Automobile items
Austenetic and ductility through Conveyer belts
  moderate or severe Cold Railway Coaches
  Working. Metal Fixtures for construction purposes
    Roof drainage products
    Door frames tableware etc
316 2-3% Mo which improves Architectural items
Austenitic Austenitic corrosion Marine exteriors
  resistance to halogens and Chemical processing equipment
  imports hot strength Food processing equipment
  characteristics resistance to Petroleum refining equipment
  pitting corrosion. Pharmaceutical equipments
    Photographic equipment
    Pulp and paper processing equipment
    textile finishing equipment
321 Austenitic Similar to 304 but tabilized Air craft exhausts
with Titatnium to avoid Stacks and manifolds
intergranular corrosion. Pressure vessels
Resists sealing and vibration Large mufflers for stationary diesel engines
fatigue. Carburetors
  Expansion bellows
  Stack liners
  Thin wall tubes
Tubes, Pipes, Cutlery, Utensils, Automobile parts, Kitchen Sinks, LPG Gas Stoves, Electronic Components, Furniture, Decorative Applications, Structural fabrications and other similar applications.
Typical Application
Due to their good formability, weldability and corrosion resistance, Stainless 200 series grades can be used for applications as detailed below :-
Catering & Food Processing
JSL AUS(J1) Deep drawn utensils, pressure cookers, water filters, storage vessels, milk, kitchen sinks etc.
J204Cu, J4 Shallow/medium drawn utensils, tablewares, cutlery, stand for water filters, flasks,dog pots
Consumer Durables
JSL AUS(J1) White goods/house hold appliances, washing machines, microwaves ovens, thermo-ware
J204Cu, J4 White goods dry applications, steel furniture, decorative tubing
Architecture, Building & Construction
JSL AUS(J1) Outdoor non-coastal
J204Cu, J4 Indoor decorative, handrails, ornamental tubes, doors & window frames,door hinges/knobs, street furniture, tree guards, dustbin
Transport (Automotive)
JSL AUS(J1) Automotive trim, wheel caps, wiper arms, auto accessories, motorcycle rims
J204Cu, J4 Interior decorative accessories, structurals, bus body, rail car
 
FORMULA OF WEIGHT
1 Weight of Stainless Steel Pipes & Tubes OD(mm)-W.T. (mm) x W.T.(mm)x0.02466=Kg.per Mtr
2 Sheet Width Required for rolled and welded pipes O.D.(mm) - THK(mm) x 3.14=SheetWidth
3 Weight of Stainless Steel Sheets Length (mtr.) x Wdth(mtr.) x Thk(mm)x8=Kg Per Sheet
4 Weight of Stainless Steel Circle & Blanks OD(mm) x OD>(mm) x Thk(mm)/160/1000=Kg Per Pcs
5 Weight of Stainless Steel Rounds Dia.(mm)xdia.(mm) x 0.00623=PerMtr
6 Weight of Stainless Steel Hexagonal Rods Dia.(mm)xDia.(mm) x 0.00679=PerMtr
7 Weight of stainless Steel Square Bars Dia.(mm)xDia.(mm) x 0.00787=PerMtr
8 Weight of Alluminium Pipes(appro.) OD(mm)-W.T. (mm) XW.T.(mm) x 0.0082=Kg per Mtr.
9 Weight of Alluminium Sheets(appro.) Length (mtr.) X Width(mtr.) X Thk(mm) x 2.66=Kg Per Sheet
 

 

 
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