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Nickel chromium molybdenum steels
BS : 970
EN : Spench		 SAE/AISI
SPENCH		 IS : 3930
IS : 4432
IS : 5517		 C Mn Si Cr Ni Mo
EN- 16   35 Mn 6 Mo 3 0.32/0.40 1.30/1.80 0.10/0.35     0.20/0.35
EN- 19 4140 40 Cr 4 Mo 3 0.38/0.45 0.50/0.80 0.10/0.35 0.90/1.20   0.20/0.35
EN- 24 4340 40 Ni6 Cr4 Mo3 0.35/0.45 0.40/0.70 0.10/0.35 0.90/1.30 1.25/1.75 0.20/0.35
EN-25   31 Ni 10 Cr3 Mo6 0.27/0.35 0.50/0.70 0.10/0.35 0.50/0.80 2.30/2.80 0.40/0.70
EN-36   13 Ni 3 Cr 80 0.15/0.18 0.30/0.60 0.10/0.35 0.60/1.10 3.00/3.75  
EN-40B   25 Cr 13 Mo 6 0.20/0.30 0.40/0.65 0.10/0.35 2.90/3.50 0.25/0.40 0.40/0.70
EN-111 3140 35 Ni 5 Cr 2 0.30/0.40 0.60/0.90 0.10/0.35 0.45/0.75 1.00/1.50  
EN-353   15 Ni Cr 1 Mo12 0.12/0.18 0.60/1.00 0.10/0.35 0.75/1.25 1.00/1.50 0.80/0.15
EN-354 4320 15 Ni 1Cr 1Mo 15 0.12/0.18 0.60/1.00 0.10/0.35 0.75/1.25 1.50/2.00 0.10/0.20


FERRITIS GRADES
430 S43000 0.12 16.0 - 18.0 Mn1.0; P .04;S 1.0;Si 1.0 1.4016 A-580 5627
446 S44600 0.20 23.0 - 27.0 Mn1.5; P .04; S .03; Si 1.0; N .25 1.4762 A-580  

MARTENSITIC GRADES
410 S41000 0.15 11.5 - 13.5 Mn 1.0; P .04; S .03; Si1.0 1.4006 A-580 5613
416 S41623 0.15 12.0-14.0 Mn 1.25;P .06; S .15min; Si 1.0; Mo .60 1.4005 A-581 5610
420 S42000 .15Min 12.0-14.0 Mn 1.0;P .04; S .03; Si 1.0 1.4021 A-580 5621

PRECIPITAON HARDENING GRADES
17-7PH S17700 0.09 6.50-7.75 16.0-18.0 Al  .75-1.5; Si 1.0; P .04; S .03 1.4568 CHEM(A-693 CHEM (5528,5529)
A285 S66286 0.86 24.0-27.0 13.5-16.0 Mn2.0;Si1.0;P .040;S .030; Mo1.0-1.5; Al .035 1.4980   5731

STAINLESS STEEL
IS EN DIN AISI/SAE BS
AUSTENITIC GRADES
X07Cr18Ni9 En58A X12CrNi188 302 302S35
X04Cr18Ni11 En58E X5CrNi189 304 304S15
X02Cr18Ni11   X2CrNi189 304L 304S12
X15Cr24Ni13   X15CrNiSi2012 309  
X20Cr25Ni20   X15CrNiSi2520 310 310S24
X04Cr25Ni20   XCrNi2521 310S  
X04Cr17Ni12Mo2 En58H X5CrNiMo1810 316 316S16
X02Cr17Ni12Mo2   X2CrNiMo1810 316L 316S12
X04Cr19Ni13Mo3 En58J X5CrNiMo1713 317 317S16
    X2CrNiMo1812 317L  
X04Cr18Ni10Ti En58C X10CrNiTi189 321 312S12
X04Cr18Ni10Nb En58G X10CrNiN6189 347 314S17
FERRITIC GRADES
X07Cr17 En60 XBCr17 430 430S15
X15Cr25N     446  
MARTENSITIC GRADES
X12Cr13     410 410S21
X20Cr13, X30Cr13 En56C, En56D   420 420S37
X15Cr16Ni2 En57 X22CrNi17 431 431S29


NICKLE ALLOYS
TYPICAL CHEMICAL ANALYSIS
ALLOY UNS Ni C Mn Fe Si OTHER DIN ASTM AMS
NICKLE 200 N02200 99.5 MIN 0.8MAX 0.18 0.20 0.18 CU.13 MAX 2.4066 B-160  
NICKLE 201 N02201 99.5 MIN .01 MAX 0.18 0.20 0.18 CU.13 MAX 2.4068 B-160  
NICKLE 233 N02233 99.5 0.09 0.18 0.05 0.005 Mg.07,Cu.03,Ti.003,S.005 2.4061    
MONEL 400 N04400 66.5 0.15 1.0 1.25 0.50 Cu.31.5,S 0.12 2.4360 B-164 4730,4731
INCONEL 600 N06600 76.0 0.08 0.5 8.0 0.25 Cu25, Cr15.5 2.4816 B-166 5665,5687
INCONEL 601 N06601 60.5 0.05 0.50 14.1 0.25 Cu 50, Cr23 2.4851   5715
INCONEL 625’ N06625 61.0 0.08 0.25 2.5 0.25 Cr21.5 MAX, Al.2,Ti.2,Mo9.0MAX, (Cb+Ta)3.65 2.4856 B-446 5837
INCONEL 702’ N07702 79.0 0.04 0.50 1.0 0.35 S .005, Cu .25, Cr 15.5, Ti .60, Al 3.25      
INCONEL 718’ N07718 52.5 0.04 0.18 BAL 0.18 Cu.15,Al.50,Ti.90,Cr19.0,S.008,Mo3.05, (Cb+Ta)5.13 2.4668   5832
INCONEL 722’ N07722 75.0 0.04 0.50 7.0 0.35 S .005, Cu .25, Al .70, Cr 15.5, Ti 2.38     5714
INCONEL X-750’ N07750 73.0 0.04 0.50 7.0 0.25 S.005, Cu .25, Al .70 Cr15.5, Ti2.50, (Cb+Ta) .95 2.4669   5667,5670
5698,5699
INCONEL 800’ N08800 32.5 0.05 0.75 46.0 0.50 Cr 21.0, Ti .38,Al .38, Cu .38 1.4876 B-408 5766
INCONEL825’ N08825 42.0 0.03 0.50 29.0 0.25 S .015, Ti .90, Al .10, Cu 2.25, Cr21.5, Mo 3.0 2.4858 B-425  
HASTELLOY B-22 N10665 BAL >=.02 >=1.00 >=2.0 1.0MAX Co>=1.0, Cr>=1.0, Mo 26.0-30.0 2.4615,
2.4617		    
HASTELLOY  C-2762 N10276 BAL 0.02MAX 1.00MAX 4.0-7.0 0.08 Co 2.50 MAX, Cr 14.5-16.5, W .2-1.0, Mo 15-17 2.4819 B-574  
HASTELLOY  X2 N06002 BAL 0.05-0.15 1.0MAX 17.0-20.0 1.0MAX Co .5-2.5, Cr20.5-23.0, W .2-1.0,Mo 8.0-10.0 2.4665 B-572  


STAINLESS STEEL
IS EN DIN AISI/SAE BS
AUSTENITIC GRADES
X07Cr18Ni9 En58A X12CrNi188 302 302S35
X04Cr18Ni11 En58E X5CrNi189 304 304S15
X02Cr18Ni11   X2CrNi189 304L 304S12
X15Cr24Ni13   X15CrNiSi2012 309  
X20Cr25Ni20   X15CrNiSi2520 310 310S24
X04Cr25Ni20   XCrNi2521 310S  
X04Cr17Ni12Mo2 En58H X5CrNiMo1810 316 316S16
X02Cr17Ni12Mo2   X2CrNiMo1810 316L 316S12
X04Cr19Ni13Mo3 En58J X5CrNiMo1713 317 317S16
    X2CrNiMo1812 317L  
X04Cr18Ni10Ti En58C X10CrNiTi189 321 312S12
X04Cr18Ni10Nb En58G X10CrNiN6189 347 314S17
FERRITIC GRADES
X07Cr17 En60 XBCr17 430 430S15
X15Cr25N     446  
MARTENSITIC GRADES
X12Cr13     410 410S21
X20Cr13, X30Cr13 En56C, En56D   420 420S37
X15Cr16Ni2 En57 X22CrNi17 431 431S29


CONVERSION OF THE GAUGE TO INCH AND MM WITH APPROXIMATE WEIGHT OF STEELS SHEETS
SIZE INCH MM Kg./Sq. Ft. Kg./Sq. METER
1/ 2” 0.500 12.700 9.340 100.440
7/16” 0.437 11.112 8.172 87.887
3/8” 0.375 9.525 7.005 75.329
5/16” 0.313 7.937 5.837 62.776
1 G 0.300 7.620 5.603 60.261
2 G 0.276 7.010 5.155 55.442
3 G 0.252 6.400 4.707 50.623
4 G 0.232 5.892 4.333 46.604
5 G 0.212 5.384 3.982 42.586
6 G 0.192 4.876 3.586 38.568
7 G 0.176 4.470 3.287 35.355
8 G 0.160 4.064 2.988 32.137
9 G 0.144 3.657 2.690 28.925
10 G 0.128 3.251 2.391 25.712
11 G 0.116 2.946 2.166 23.300
12 G 0.104 2.641 1.942 20.888
13 G 0.092 2.336 1.718 18.481
14 G 0.080 2.012 1.495 16.069
15 G 0.072 1.828 1.345 14.462
16 G 0.064 1.625 1.195 12.856
17 G 0.056 1.422 1.046 11.250
18 G 0.048 1.219 0.896 9.638
19 G 0.040 1.016 0.747 8.032
20 G 0.036 0.914 0.672 7.231
21 G 0.032 0.812 0.598 6.426
22 G 0.028 0.711 0.523 5.625
23 G 0.024 0.609 0.448 4.819
24 G 0.022 0.558 0.411 4.419
25 G 0.020 0.508 0.373 4.013
26 G 0.018 0.457 0.336 3.613
27 G 0.0164 0.416 0.306 3.291
28 G 0.0148 0.375 0.277 2.974
29 G 0.0136 0.345 0.254 2.729
30 G 0.0124 0.314 0.232 2.490


Weight in Kgs per meter (ROUNDS-SQUARES-HEXAGONS)
SIZE ROUNDS Squares hexagons size rounds Squares hexagons
inch mm Kg/m Kg/m Kg/m inch mm Kg/m Kg/m Kg/m
3/16 4.76 0.14 0.18 0.1541 1.7/8 47.63 13.97 17.79 15.42
1/ 4 6.35 0.25 0.32 0.2739 2 50.80 15.90 20.24 17.53
5/16 7.94 0.39 0.49 0.4279 2.1/8 53.98 17.95 22.85 19.79
3/8 9.53 0.56 0.71 0.6162 2.1/ 4 57.15 20.12 25.61 22.18
7/16 11.11 0.76 0.97 0.8387 2.3/8 60.33 22.42 28.54 24.72
1/ 2 12.70 0.99 1.26 1.095 2.1/ 2 63.50 24.84 31.63 27.4
9/16 14.29 1.25 1.26 1.386 2.5/8 66.58 27.38 34.87 30.20
5/8 15.88 1.55 1.98 1.712 2.3/ 4 69.85 30.05 38.26 33.14
3/ 4 19.05 2.23 2.85 2.470 2.7/8 73.03 32.85 41.82 36.22
7/8 22.23 3.04 3.87 3.350 3 76.20 35.77 45.54 39.44
1 25.40 3.97 5.06 4.380 3.1/ 4 82.55 41.98 53.44 -
          3.1/ 2 88.90 48.68 61.98 -
1.1/8 28.58 5.03 6.40 5.550 4 101.6 63.59 80.96 -
1.1/ 4 31.75 6.21 7.91 6.850 4.1/ 2 114.3 80.47 102.46 -
1.3/8 34.93 7.51 9.97 8.280 5 127.0 99.35 126.5 -
1.1/ 2 38.1 8.94 11.38 9.860 6 152.4 143.1 182.2 -
1.5/8 41.28 10.50 13.36 11.57 8 203.2 254.3 323.8 -
1.3/ 4 44.45 12.17 13.5 13.42 10 254.0 397.4 505.9 -


SPECIAL FORMULA
WEIGHT OF ROUNDS IN MM PER FEET
DIAMETER X DIAMETER X 0.0019 = WT. / FT.		 WEIGHT OF FLAT IN MM PER FEET
DIAMETER X THICKNESS X 0.0024 = WT. / FT.
WEIGHT OF SQUARE IN MM PER FEET
DIAMETER X DIAMETER X 0.0024 = WT. / FT.		 WEIGHT OF SHEETS & PLATES IN MM PER FEET
LENGTH X WIDTH X THICKNESS X 8 = WT./PCS.
WEIGHT OF HEX MM PER FEET
DIAMETER X DIAMETER X 0.0024 = WT. / FT.		 WEIGHT OF PIPE IN MM PER FEET
OD – W.T. X W.T. X 0.0075 = WT./FT.


Carbon Steels
BS : 970
EN : Spe.		 SAE/AISI
SPECN		 IS : 1875
IS : 1570		 C Mn Si
EN-32B 1015 CI-IA 0.10/0.20 0.60/0.90 0.15/0.35
EN-4 1026 CI-IIA 0.20/0.30 0.60/0.90 0.15/0.35
EN-5 1030 CI-III 0.25/0.35 0.60/0.90 0.15/0.35
EN-8 1040 CI-IV 0.35/0.45 0.60/0.90 0.15/0.35
EN-9 1055 CI-V 0.50/0.60 0.60/0.90 0.15/0.35
EN-42B 1065 CI-VI 0.60/0.70 0.60/0.90 0.15/0.35


Stainless steel grade NITRONIC 50 (XM-19) composition as following table.
Element Content (%)
Iron, Fe Chromium, Cr
Nickel, Ni 3.0 - 5.0
Copper, Cu 3.0 - 5.0
Manganese, Mn 1.0
Silicon, Si 1.0
Tantalum, Ta 0.45
Niobium, Nb (Columbium, Cb) 0.45
Nb + Ta 0.15 - 0.4
Carbon, C 0.070
Phosphorous, P 0.040
Sulfur, S 0.030


Quality Assurance


All products of Norac International have to meet a very high standard, set by stringent quality specifications and norms. All process parameters and conditions are developed and constantly monitored throughout the entire manufacturing process.

The quality policy of Norac International is very simple to perform work of the highest attainable quality in accordance with applicable codes / standards / specification and customer's specification. Our products are subjected to various quality testing such as Eddy Current test, Hydrostatic test, UTS, Hardness test, Air under water test, Dimensional test, visual test etc.

Quality Control measures include chemical analysis, measurement of mechanical and metallurgical properties and close dimensional tolerances as per applicable codes / standards / specification.