Stainless Steels – Specifications

Stainless steel is essentially a low carbon steel which contains chromium at 10% or more by weight. It is this addition of chromium that gives the steel its unique stainless, corrosion resisting properties. The corrosion resistance and other useful properties of the steel are enhanced by increased chromium content and the addition of other elements such as molybdenum, nickel and nitrogen.

Grades – Chemical Composition and Equivalent Standards 

AISI ASTM EN DIN C % Max Mn % Max Si % Max S % Max P % Max Cr % Max Ni % Max Mo % Max Others %
201 - 0.15 5.5-7.5 1.00 0.030 0.060 16.00-18.00 3.50-5.50 - -
202 - 0.15 7.5-10 1.00 0.030 0.060 17.00-19.00 4.00-6.00 - -
302 1.4310 0.15 2.00 1.00 0.030 0.045 17.00-1900 8.00-10.00 - -
302HQ 1.4567 0.03 2.00 1.00 0.030 0.045 17.00-19.00 9.00-10.00 - Cu : 3.00-4.00
303 1.4305 0.15 2.00 1.00 0.15 Min 0.20 17.00-1900 8.00-10.00 - Cu : 1% max
303EHS - 0.15 2.00 1.00 0.30-0.33 0.20 17.00-19.00 8.00-10.00 - Cu : 1% max
304 1.4301 0.08 2.00 1.00 0.030 0.045 18.00-20.00 8.00-11.00 - -
304HC - 0.05 2.00 1.00 0.030 0.045 18.00-20.00 8.50-9.50 - Cu : 2.00-2.50
304L 1.4306 0.03 2.00 1.00 0.030 0.045 18.00-20.00 8.00-12.00 - -
308LER 1.4331 0.02 1.5-2.0 0.50 0.020 0.025 19.00-21.00 9.50-11.00 - -
309LER 1.4332 0.03 1.5-2.0 0.50 0.015 0.020 23.00-25.00 12.00-14.00 - -
310 1.4841 0.25 2.00 1.50 0.030 0.045 24.00-26.00 19.00-22.00 - -
310S 1.4842 0.08 2.00 1.50 0.030 0.045 24.00-26.00 19.00-22.00 - -
316 1.4401 0.08 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 -
316L 1.4404 0.03 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 -
316LER 1.4430 0.02 1.5-2.0 0.50 0.020 0.020 18.00-20..00 12.00-14.00 2.00-2.75 -
316Ti 1.4571 0.08 2.00 1.00 0.030 0.045 16.00-18.00 10.00-14.00 2.00-3.00 Ti : Min (5xC%)
317LN 1.4438 0.03 2.00 1.00 0.030 0.045 18.00-20.00 11.00-15.00 3.00-4.00 N : 0.10-0.22
321 1.4541 0.08 2.00 1.00 0.030 0.045 17.00-19.00 9.00-12.00 - Ti : Min (5xC%)
410 1.4006 0.15 1.00 1.00 0.030 0.040 11.50-13.50 - - -
416 1.4005 0.15 1.25 1.00 0.15 Min 0.060 12.00-14.00 - - -
416XM - 0.15 1.25 1.00 030-0.33 0.060 12.00-14.00 - - -
420 1.4021 0.15 Min 1.00 1.00 0.030 0.040 12.00-14.00 - - -
430 1.4016 0.12 1.00 1.00 0.030 0.040 16.00-18.00 - - -
430L - 0.03 1.00 1.00 0.030 0.040 16.00-18.00 - - -
430F 1.4104 0.12 1.25 1.00 0.15 Min 0.060 16.00-18.00 - - -
431 1.4057 0.20 1.00 1.00 0.030 0.040 15.00-17.00 1.25-2.50 - -

Benefits of Stainless Steel

• Corrosion Resistance • Fire And Heat Resistance
• Hygiene • Aesthetic Appearance
• Strength-To-Weight Advantage • Impact Resistance
• Lower Total Life Cycle Cost • 100%Recyclable

Theoritic Weight of Stainless Steel Round Bars

Size (mm) Weight kgs/ meter Size (mm) Weight kgs/ meter
2 0.025 16 1.595
3 0.056 17 1.801
4 0.100 18 2.019
5 0.156 19 2.250
6 0.224 20 2.493
7 0.305 21 2.748
8 0.399 22 3.016
9 0.505 23 3.297
10 0.623 24 3.590
11 0.754 25 3.895
12 0.897 26 4.213
13 1.053 28 4.886
14 1.221 30 5.609
15 1.402 32 6.382
34 7.204 85 45.026
35 7.634 90 50.479
36 8.077 95 56.244
38 8.999 100 62.320
40 9.971 105 68.708
45 12.620 110 75.407
50 15.580 115 82.418
55 18.852 120 89.741
58 20.964 125 97.375
60 22.435 130 105.321
65 26.330 135 113.578
70 30.537 140 122.147
75 35.055 145 131.028
80 39.885 150 140.220

Conversion of Inch to millimeter and their corresponding weight

Inch Inch (Dec) Size (mm) Weight kgs/ meter
1/8″ 0.125 3.175 0.063
3/16″ 0.188 4.763 0.141
1/4″ 0.250 6.350 0.251
5/16″ 0.313 7.938 0.393
3/8″ 0.375 9.525 0.565
7/16″ 0.438 11.113 0.770
1/2″ 0.500 12.700 1.005
5/8″ 0.625 15.875 1.571
3/4″ 0.750 19.050 2.262
7/8″ 0.875 22.225 3.078
1″ 1.000 25.400 4.021
1-1/8″ 1.125 28.575 5.089
1-3/16″    1.188 30.163 5.670 3-3/16″    3.188
1-1/4″ 1.250 31.750 6.282
1-5/16″    1.313 33.338 6.926 3-5/16″    3.313
1-3/8″ 1.375 34.925 7.602
1-7/16″    1.438 36.513 8.308 3-7/16″    3.438
1-1/2″ 1.500 38.100 9.046
1-5/8″ 1.625 41.275 10.6171
1-3/4″ 1.750 44.450 12.313
1-7/8″ 1.875 47.625 14.135
2″ 2.000 50.800 16.083
2-1/8″ 2.125 53.975 18.156
2-3/16″    2.188 55.563 19.239 4-3/16″    4.188
2-1/4″ 2.250 57.150 20.354
2-5/16″    2.313 58.738 21.501 4-5/16″    4.313
2-3/8″ 2.375 60.325 22.679
2-7/16″    2.438 61.913 23.888 4-7/16″    4.438
2-1/2″ 2.500 63.500 25.129
2-5/8″ 2.625 66.675 27.705
2-3/4″ 2.750 69.850 30.406
2-7/8″ 2.875 73.025 33.233
3″ 3.000 76.200 36.186
3-1/8″ 3.125 79.375 39.264
80.963 40.850 5-3/16″    5.188 131.763
3-1/4″ 3.250 82.550 42.468
84.138 44.117 5-5/16″    5.313 134.938
3-3/8″ 3.375 85.725 45.798
87.313 47.509 5-7/16″    5.438 138.113
3-1/2″ 3.500 88.900 49.253
3-5/8″ 3.625 92.075 52.834
3-3/4″ 3.750 95.250 56.540
3-7/8″ 3.875 98.425 60.372
4″ 4.000 101.600 64.330
4-1/8″ 4.125 104.775  68.414
106.363 70.503 - -
4-1/4″ 4.250 107.950  72.623
109.538  74.774 - -
4-3/8″ 4.375 111.125  76.958
112.713  79.172 - -
4-1/2″ 4.500 114.300  81.418
4-5/8″ 4.625 117.475  86.004
4-3/4″ 4.750 120.650  90.716
4-7/8″ 4.875 123.825  95.553
5″ 5.000 127.000  100.516
5-1/8″ 5.125 130.175  105.605
 108.196 - - -
5-1/4″ 5.250 133.350  110.819
 113.473 - - -
5-3/8″ 5.375 136.525  116.159
 118.876 - - -
5-1/2″ 5.500 139.700  121.624
5-5/8″ 5.625 142.875  127.215
5-3/4″ 5.750 146.050  132.932
5-7/8″ 5.875 149.225  138.775
6″ 6.000 152.400  144.743

Theoritic Weight of Stainless Steel Hex & Square Bars

Size (mm) Weight (Hex) kg/ meter Weight (Square) kg/ meter
5 0.172  0.197
6 0.248  0.283
8 0.441  0.504
10 0.689  0.787
12 0.992 1.134
14 1.350 1.543
15 1.550 1.771
16 1.763  2.015
17 1.991 2.275
18 2.232 2.551
19 2.487 2.842
20  2.755 3.149
21 3.038 3.472
22 3.334 3.810
24  3.967 4.534
25  4.305 4.920
27  5.021 5.739
28  5.400 6.172
30  6.199  7.085
32  7.053  8.061
34 7.963  9.100
35 8.438 9.643
36 8.927  10.202
38 9.946 11.367
40 11.021 12.595
42 12.150 13.886
45 13.948  15.941
50 17.220 19.680

Tolerance Chart for SS Round Bars as per ISO

Size Range (mm) h8 h9 h10 h11 h12 h13 K12/K13
Upto 6 -0.018 -0.030 -0.048 -0.075 -0.120 -0.180 -
Over 6 upto 10 -0.022 -0.036 -0.058 -0.090 -0.150 -0.220 -
Over 10 upto 18 -0.027 -0.043 -0.070 -0.110 -0.180 -0.270 -
Over 18 upto 30 -0.033 -0.052 -0.084 -0.130 -0.210 -0.330 +0.10/+0.15
Over 30 upto 50 -0.039 -0.062 -0.100 -0.160 -0.250 -0.390 +0.15/+0.20
Over 50 upto 80 -0.046 -0.074 -0.120 -0.190 -0.300 -0.460 +0.20/+0.25
Over 80 upto 120 -0.054 -0.087 -0.140 -0.220 -0.350 -0.540 +0.25/+0.30

Tolerance Chart For SS Round Bars as per ASTM A 484

Cold Finished Round Bars

Size Range in Inch Tolerance
1/16” to less than 5/16” +/- 0.001”
5/16” to less than 1/2” +/- 0.0015”
1/2” to less than 1” +/- 0.002”
1” to less than 1-1/2” +/- 0.0025”
1-1/2” to less than 4” +/- 0.003”

Cold Finished Hexagon & Square Bars

Size Range in Inch Tolerance
1/16” to less than 5/16” +/- 0.002”
5/16” to less than 1/2” +/- 0.003”
1/2” to less than 1” +/- 0.004”
1” to less than 2” +/- 0.006”
2” to less than 3” +/- 0.008”
3″ and over +/- 0.010”

Hardness Conversions Chart

Brinnel Hardness HB Vickers Hardness HV Rockwell Hardness HRC Rockwell Hardness HRB Tensile Strength ksi
321 339 34 108 158
311 328 33 108 154
302 319 32 107 150
293 309 31 106 146
285 301 30 105 142
277 292 29 104 138
269 284 28 104 135
262 276 27 103 131
255 269 25 102 125
248 261 24 101 121
241 253 23 100 119
235 247 22 99 117
229 241 21 98 113
223 234 - 97 110
217 228 - 96 107
212 222 - 95 102
207 218 - 95 100
202 212 - 94 98
197 207 - 93 96
192 202 - 92 94
187 196 - 91 90
183 192 - 90 89
179 188 - 89 87
174 182 - 88 84
170 178 - 87 82
166 175 - 86 80
163 171 - 85 78
159 167 - 84 77
156 163 - 83 76
153 160 - 82 75
149 156 - 81 74
146 153 - 80 72
143 150 - 79 71
140 147 - 78 70
137 143 - 76 67
134 140 - 75 66
131 137 - 74 65
128 134 - 73 64
126 132 - 72 63
124 129 - 71 62
121 127 - 70 60
118 124 - 69 59
116 122 - 68 58
114 119 - 67 57
111 117 - 66 56

4

Super austenitic stainless steels:
S31254 S31254 1.4547; F44
N08367 AL‐6XN
N08904 904L 1.4539
Steels type Duplex and Super Duplex (Ferretic-Austenitic):
S31803 Duplex S31803 1.4462; F51
S32550 Ferralium 255 1.4507; F61
S32760 Supper duplex F55 1.4501
S32750 Super duplex S32750 1.4410; F3

 

4

Super Alloys Cr, Ni, Mo,….
S17400 17‐4PH 1.4542; A564 Gr630
N08020 20Cb3 Alloy 20; 2.4660
N10675 Hastelloy B3 2.4617
N06022 Hastelloy C22 2.4602
N10276 Hastelloy C276 2.4819
N06455 Hastelloy C4 2.4610
N08028 Incoloy 028 1.4563;Sanicro28
N08330 Incoloy 330 1.4333
N08800 Incoloy 800 1.4876
N08810 Incoloy 800H 1.4876;1.4958
N08811 Incoloy 800HT 1.4876;1.4959
N08825 Incoloy 825 2.4858
S66286 Incoloy A286 1.4980;A638Gr 660
N08330 Incoloy DS 1.4864
N06600 Inconel 600 2.4816
N06601 Inconel 601 2.4851
N06625 Inconel 625 2.4856
N07718 Inconel 718 2.4668
N07750 Inconel X750 2.4669
N04400 Monel 400 2.4360
N05500 Monel K500 2.4375

 

Werkstoff‐Nr.

DIN.

AISI.

UNS.

AFNOR. BS.

JIS

SS. GOST

1.4000

X6Cr13

403(410S)

S 41008

Z6C13

403 S17

SUS 403

2301

08Ch13

(X7Cr13)

1.4002

X6CrAI13

405

S 40500

Z6CAI13

405 S17

SUS 405

08Ch11NYU

(X7CrAl13)

1.4006

X10Cr13

410

S 41000

Z12C13

410 S21

SUS 410

2302

12Ch13

1.4016

X6Cr17

430

S 43000

Z8C17

430 S15

SUS 430

2320

12Ch17

(X8CR17)

430 S17

1.4021

X20Cr13

420

S 42000

Z20C13

420 S29

SUS 420J1

2303

20Ch13

420 S37

SUS 420J2

420 S45

1.4024

X15Cr13

410

S 41000

420 S29

SUS 410J1

410 S21

1.4028

X30Cr13

420

S 42000

Z30C13

420 S45

SUS 420J2

2304

30Ch13

1.4031

X38Cr13

420

S 42000

Z40C14

SUS 420J2

2304

40Ch13

(X40Cr13)

1.4034

X46Cr13

420

S 42000

Z40C14

420 S45

40Ch13

Z38C13M

1.4057

X20CrNi172

431

S 43100

Z15CN16‐02

431 S29

SUS 431

2321

20Ch17N2

(X22CrNi17)

1.4510

X6CrTi17

XM8

Z8CT17

SUS 430LX

08Ch17T

(X8CrTi17)

430Ti

1.4512

X6CrTi12

409

S 40900

Z6CT12

409 S19

SUH 409

409 S17

1.4301

X5CrNi1810

304/304H

S 30400

Z6CN18‐09

304 S31

SUS 304

2332

08Ch18N10

(X5CrNi189)

1.4305

X10CrNiS189

303

S 30300

Z10CNF18‐09

303 S21

SUS 303

2346

(X12CrNiS188)

1.4306

X2CrNi1911

304L

S 30403

Z2CN18‐10

304 S12

SCS 19

2352

03Ch18N11

(X2CrNi189)

Z3CN19‐10M

304 C12

SUS 304L

2333

(G‐X2Cr189)

Z2CN18‐09

304 S11

1.4310

X12CrNi177

301

S 30100

Z12CN17‐07

301 S21

SUS301

Z12Cn18‐07

1.4311

X2CrNiN1810

304LN

S 30453

Z2CN18‐10Az

304 S62

SUS 304LN

2371

1.4401

X5CrNiMo17122

316

S 31600

Z6CND17‐11

316 S16

SUS 316

2347

1.4404

X2CrNiMo17132

316L

S 31603

Z2CND 18‐13

316 S14

SUS 316L

2348

(X2CrNiMo1810)

Z2CND17‐12

(GX2CrNiMo1810)

1.4429

X2CrNiMoN17133

316LN

S 31653

Z2CND17‐13

SUS 316LN

2375

(X2CrNiMoN1813)

1.4435

X2CrNiMo18143

316L

S 31603

Z2CND17‐13

316 S11

SCS 16

2353

03Ch17N14

(X2CrNiMo1812)

316 S12

SUS 316L

M2

316 S13

1.4436

X5CrNiMo17133

316

S31600

Z6CND17‐12

316 S16

SUS 316

2343

(X5CrNiMo1812)

316 S33

1.4438

X2CrNiMo18164

317L

S 31703

Z2CND19‐15

317 S12

SUS 317L

2367

(X2CrNiMo1816)

1.4439

X2CrNiMoN17135

317LNM

S 31726

Z2CND19‐15

317 S16

1.4449

X5CrNiMo1713

317

317 S16

SUS 317

1.4465

X1CrNiMoN25252

N 08310

1.4505

X5CrNiMoCuNb2018

07Ch17N20

M2D2T

1.4521

X2CrMoTi182

440

S 44400

2326

1.4529

X1NiCrMoCuN25206

N08925

1.4539

X1NiCrMoCu25205

904L

N 08904

Z1NCDU25‐

2562

2004

1.4541

X6CrNiTi1810

321

S 32100

Z6CNT18‐10

321 S12

SUS 321

2337

1Ch18N12T

(X10CrNiTi189)

321 S20

(321 S31)

1.4550

X6CrNiNb1810

347

S 34700

Z6CNNb18‐10

347 S17

SUS 347

2338

08Ch18N128

(X10CrNiNb189)

347 S31

1.4558

X2NiCrAlTi3220

N 08800

1.4563

X1NiCrMoCuN31274

N 08028

Z1NCDU31273A

z

1.4571

X6CrNiMoTi17122

316Ti

S 31635

Z6CNDT17‐12

320 S31

2350

10Ch17N13M2T

(X10CrNiMoTi1810)

320 S17

1.4580

X6CrNiMoNb17122

316Cb

Z6CNDNb17‐12

08Ch16N13M2B

(X10CrNiMoNb1810)

Z6CNDNb19‐13

1.4583

X10CrNiMoNb1812

318

1.4586

X5CrMoCuNb2218

1.4335

X1CrNi2521

310LC

Z2CN25‐20

1.4713

X10CrA17

Z8CA7

1.4718

X45CrSi93

HNV3

Z45CS9

401 S45

SUH1

1.4724

X10CrAl13

(405)

Z10C13

403 S17

1.4742

X10CrAl18

(430)

Z10CAS18

430 S15

SUS 430

SUH 21

1.4749

X18CrN28

446‐1

Ch25

1.4762

X10CrAI24

(446)

Z10CAS24

1.4821

X20CrNiSi254

327

Z20CNS25‐04

1.4828

X15CrNiSi2012

309

Z15CNS20‐12

309 S24

SUH 309

Ch24N12S1

1.4833

X7CrNi2314

309S

Z15CN24‐13

SUS 3095

1.4841

X15CrNiSi2520

314/310

Z12CNS25‐20

SUH 310

20Ch25N20S2

1.4845

X12CrNi2521

310 S

Z12CN25‐20

310 S24

SUH 310

2361

10Ch23N18

SUS 310S

1.4848

(G‐X40CrNiSi2520)

310 C40

SCH 21

1.4864

X12NiCrSi3616

330

N 08330

Z12NCS37‐18

Na 17

SUH 330

Z12NCS35‐16

Z12NC37‐18

1.4871

X53CrMnNiN219

EV8

Z52CMN21‐09

349 S54

SUH 35

SUH 36

1.4876

X10NiCrAITi3320

B163

N 08800

Z8NC32‐21

NA 15(H)

NCF

8000

1.4876

X10CrNiAPTi3320

B163

N 08810

Z8NC32‐21

NA 15

1.4878

Z12CrNiTi189

321H

Z6CNT18‐12(B)

S21 S20

SUS 321

2337

(321 S12)

1.4893

S 30815

2368

S 32750

1.4362

S 32304

1.4417

S 31500

1.4460

X4CrNiMo2751

329

S 32900

SUS

2324

(XBCrNiMo275)

329J1

SCH 11

SCH 11

1.4462

X2CrNiMoN2253

S 31803

Z2CND22‐05Az

S 31200

S 31260

S 32550

S 32950

 

GRADE

IS

AISI

DIN

AFNOR

JIS

BS

SIS

UNS

UNI

INDIA

USA

GERMANY

FRANCE

JAPAN

BRITIAN

SWEDEN

ITALY

SS 301

X10 Cr 17Ni 7

301

1.4310

Z 12 CN 17‐08

SUS 301

301 S 21

142331

S 30100

X12 Cr Ni 1707

SS 304

X02 Cr 19 Ni 10

304

1.4301

Z 6 CN 18‐19

SUS 304

304 S 15

142333

S 30400

X5 Cr Ni 1810

SS 304L

304L

1.4306

Z 2 CN 18‐10

SUS 304L

304 S 11

142352

S 30303

X2 Cr Ni 1811

SS 310S

310S

1.4845

SUS 310 S

142361

S 31008

X6 Cr Ni 2520

SS 316

X04 Cr 17 Ni 12 Mo 2

316

1.4401

Z 6 CND 17‐11

SUS 316

316 S 31

142347

S 31600

X8 Cr Ni Mo 1713

SS 316L

X02 Cr 17 Ni 12 Mo 2

316L

1.4404

Z 2 CND 17‐12

SUS 316L

316 S 31

142338

S 31603

X2 Cr Ni Mo 1712

SS 321

X04 Cr 18 Ni 10 Ti 20

321

1.4878

Z 6 CNT 18‐12

SUS 321

321 S 31

142337

S 32100

X6 Cr Ni Ti 1811

SS 409

409

1.4512

Z 5 CT 12

SUS 409

409 S 17

S 40900

SS 410S

410S

SS 430

X10 Cr 17

430

1.4016

Z 8 C 17

SUS 430

430 S 17

142320

S 43000

X12 Cr 17 C

SS 409M

HYFAB 3/12