Chemical Properties

Chemical Properties
Chemical Properties

A Thorough Examination of Stainless Steel Chemical Characteristics

Stainless steel, an iron-based alloy, is renowned for its exceptional resistance to corrosion and staining, which is attributed to its unique chemical properties. These properties are governed by the elements used in its composition and their interactions, making stainless steel a versatile and durable material.

Austenitic Stainless Steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNiOthers
X12CrMnNiiN17-7-51.43720.1515.5-7.50.0450.0150.05-0.2516.0-18.03.5-5.5
X12CrMnNiiN18-9-51.43732020.1517.5-10.50.0450.0150.05-0.2517.0-19.04.0-6.0
X2CrMnNiN17-7-51.43710.0316.0-8.00.0450.15-0.2016.0-17.003.5-5.5
X8CrMnCuNB17-8-31.45970.126.5-8.50.040.030.15-0.3016.0-18.012Cu:2.00 to 3.50; B: 0.0005-0.0050
X11CrNiMnN19-8-61.43690.07-0.150.5-1.05.0-7.50.030.0150.20-0.3017.5-19.56.5-8.5
X10CrNi18-81.4313010.05-0.15220.0450.0150.1116.0-19.00.86.0-9.5
301 L0.03120.0450.030.216.0-18.06.0-8.0
X5CrNi17-71.43190.07120.0450.030.1116.0-18.06.0-8.0
X2CrNiN18-71.4318301 LN0.03120.0450.0150.10-0.2016.5-18.56.0-8.0
3020.150.7520.0450.030.117.0-19.08.0-10.0
X8CrNiS18-91.43053030.1120.0450.15 to 0.350.1117.0-19.08.0-10.0Cu:1.00
X5CrNi18-101.43013040.07120.0450.0150.1117.5-19.58.0-10.5
X2CrNiN18-101.4311304 LN0.03120.0450.0150.12-0.2217.5-19.58.5-11.5
X6CrNiN18-101.4948304 H0.04-0.08120.0350.0150.1117.0-19.08.0-11.0
X2CrNi18-91.4307304 L0.03120.0450.0150.1117.5-19.58.0-10.5
X2CrNi19-111.4306304 L0.03120.0450.0150.1118.0-20.010.0-12.0
X5CrNiN19-91.4315304 N0.06120.0450.0150.12-0.2218.0-20.08.0-11.0
X4CrNi18-121.43033050.06120.0450.0150.1117.0-19.011.0-13.0
X15CrNiSi20-121.48280.21.5-2.520.0450.0150.1119.0-21.011.0-13.0
X12CrNi23-131.4833309 S0.15120.0450.0150.1122.0-24.012.0-14.0
X8CrNi25-211.4845310 S0.11.520.0450.0150.1124.0-26.019.0-22.0
X15CrNiSi25-211.48413140.21.5-2.520.0450.0150.1124.0-26.019.0-22.0
X5CrNiMo17-12-21.44013160.07120.0450.0150.1116.5-18.52.0-2.510.0-13.0
X3CrNiMo17-13-31.44363160.05120.0450.0150.1116.5-18.52.5-3.010.5-13.0
316 N0.080.7520.0450.030.10-0.1616.0-18.02.0-3.010.0-14.0
316 H0.04-0.100.7520.0450.0316.0-18.02.0-3.010.0-14.0
X2CrNiMo17-12-21.4404316 L0.03120.0450.0150.1116.5-18.52.0-2.510.0-13.0
X2CrNiMo18-14-31.4435316 L0.03120.0450.0150.1117.0-19.02.5-3.012.5-15.0
X2CrNiMo17-12-31.4432316 L0.03120.0450.0150.1116.5-18.52.5-3.010.5-13.0
X2CrNiMoN17-11-21.4406316 LN0.03120.0450.0150.12-0.2216.5-18.52.0-2.510.0-12.5
X2CrNiMoN17-13-31.4429316 LN0.03120.0450.0150.12-0.2216.5-18.52.5-3.011.0-14.0
X6CrNiMoTi17-12-21.4571316 Ti0.08120.0450.01516.5-18.52.0-2.510.5-13.5Ti:5 x C to 0.70
X6CrNiMoNb17-12-21.458316 Cb0.08120.0450.01516.5-18.52.0-2.510.5-13.5Nb:10 x C to 1.00
3170.080.7520.0450.030.118.0-20.03.0-4.011.0-15.0
X2CrNiMo18-15-41.4438317 L0.03120.0450.0150.1117.5-19.53.0-4.013.0-16.0
X2CrNiMoN18-12-41.4434317 LN0.03120.0450.0150.10-0.2016.5-19.53.0-4.010.5-14.0
X2CrNiMoN17-13-51.4439317 LMN0.03120.0450.0150.12-0.2216.5-18.54.0-5.012.5-14.5
X6CrNiTi18-101.45413210.08120.0450.01517.0-19.09.0-12.0Ti:5 x c to 0.70
X8CrNiTi18-101.4878321 H0.1120.0450.01517.0-19.09.0-12.0Ti:5 x C to 0.80
X6CrNiNb18-101.4553470.08120.0450.01517.0-19.09.0-12.0Nb:10 x C to 1.00
347 H0.04-0.100.7520.0450.01517.0-19.09.0-12.0Nb:8 x C to 1.00
X1CrNi25-211.43350.20.2520.0250.010.1124.0-26.00.220.0-22.0
X1CrNiMoN25-22-21.4466310 MoLN0.020.720.0250.010.10-0.1624.0-26.02.0-2.521.0-23.0
X1CrNiSi18-15-41.43610.0153.7-4.520.0250.010.1116.5-18.50.214.0-16.0
X1NiCrMoCu31-27-41.45630.020.720.030.010.1126.0-28.03.0-4.030.0-32.0Cu:0.70 to 1.50
X1CrNiMoCu25-25-51.45370.020.720.030.010.17-0.2524.0-26.04.7-5.724.0-27.0Cu:1.00 to 2.00
X1NiCrMoCu25-20-51.4539904 L0.020.720.030.010.1519.0-21.04.0-5.024.0-26.0Cu:1.20 to 2.00
X1CrNiMoCuN20-18-71.45470.020.710.030.010.18-0.2519.5-20.56.0-7.017.5-18.5Cu:0.50 to 1.00
X1CrNiMoCuN24-22-81.46520.020.52.0-4.00.030.0050.45-0.5523.0-25.07.0-8.021.0-23.0Cu:0.30 to 0.60
X1CrNiMoCNW24-22-61.46590.020.72.0-4.00.030.010.35-0.5023.0-25.05.5-6.521.0-23.0Cu:1.00 to 2.00; W:1.50 to 2.50
X1NiCrMoCuN25-20-71.45290.020.510.030.010.15-0.2519.0-21.06.0-7.024.0-26.0Cu:0.50 to 1.50
X2CrNiMnMoN25-18-6-51.45650.0315.0-7.00.030.0150.30-0.6024.0-26.04.0-5.016.0-19.0Nb0.15
X12NiCrSi35-161.48643300.0151.0-2.020.0450.0150.1115.0-17.033.0-37.0
X9CrNiSiNCe21-11-21.48350.05-0.121.4-2.510.0450.0150.12-0.2020.0-22.010.0-12.0Ce:0.03 to 0.08
X10NiCrAITi32-211.48760.12120.030.01519.0-23.030.0-34.0AI:0.15 to 0.60; Ti:0.15 to 0.60
X6NiCrNbCe32-271.48770.04-0.080.310.020.010.1126.0-28.031.0-33.0AI:0.025; Ce:0.05 to 0.10; Nb:0.6-1.0
X6CrNiSiNCe19-101.48180.04-0.081.0-2.010.0450.0150.12-0.2018.0-20.09.0-11.0Ce:0.03 to 0.08
X6NiCrSiNCe35-251.48540.04-0.081.2-2.020.040.0150.12-0.2024.0-26.034.0-36.0Ce:0.03 to 0.08

Martensitic Stainless Steel

Designation ENEN Number
Designation
GRADE
ASTM
CSiMNP
max
SNCrMoNi
X12Cr131.40064100.08-0.1511.50.040.01511.5-13.50.75
X15Cr131.40240.12-0.17110.040.01512.0-14.0
X20Cr131.40214200.16-0.2511.50.040.01512.0-14.0
X30Cr131.40284200.26-0.3511.50.040.01512.0-14.0
X39Cr131.40314200.36-0.42110.040.01512.5-14.5
X46Cr131.40344200.43-0.50110.040.01512.5-14.5
X50CrMoV151.41160.45-0.55110.040.01514.0-15.00.5-0.8V: 0.10 to 0.20
X55CrMo141.4110.48-0.60110.040.01513.0-15.00.5-0.8V0.15
X38CrMo141.44190.36-0.42110.040.01513.0-14.50.60 to 1.00
X39CrMo17-11.41220.33-0.4511.50.040.01515.5-17.50.80 to 1.301
X3CrNiMo13-41.43130.050.71.50.040.0150.0212.0-14.00.30 to 0.703.5-4.5
X4CrNiMo16-5-11.44180.060.71.50.040.0150.0215.017.00.80 to 1.504.0-6.0
X1CrNiMoCu12-5-21.44220.020.520.040.0030.0211.0-13.01.30 to 1.804.0-5.0Cu:0.20 to 0.80
X12Cr131.40054160.1511.250.060.1512.0-14.00.6
X1CrNiMoCu12-7-31.44230.020.520.040.0030.0211.0-13.02.30 to 2.806.0-7.0Cu0.20 to 0.80

Ferritic Stainless Steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNiOthers
X2CrNi 121.40030.0311.50.040.0150.0310.5-12.50.3-1.0
X2CrTi 121.45124090.03110.040.01510.5-12.5Ti6x(C+N) to 0.65
X6CrNiTi 121.45160.080.71.50.040.01510.5-12.50.5-1.5Ti: 0.05 to 0.35
X6Cr 131.4410S0.08110.040.01512.0-14.0
X6CrAI 131.40024050.08110.040.01512.0-14.0AI 0.10 to 0.30
X5CrNiMoTi 5-21.45890.08110.040.01513.5-15.50.2-121.0-2.5Ti:0.30 to 0.50
4290.12110.040.0314.0-16.0
X1CrNb 151.45950.02110.0250.0150.0214.0-16.0Nb: 0.20 to 0.60
X6Cr 171.40164300.08110.040.01516.0-18.0
X2CrTi 171.4520.0250.50.50.040.0150.01516.0-18.0Ti: 0.30 to 0.60
X3CrNb 171.45110.05110.040.01516.0-18.0Nb: 12xC to 1.00
X6CrNi 17-11.40170.08110.040.01516.0-18.01.2-1.6
X6CrMo 17-11.41134340.08110.040.01516.0-18.00.8-1.4
X3CrTi 171.4514390.05110.040.01516.0-18.0Ti: 4x(C+N)+0.15 to 0.80 5)
X2CrM0Ti 17-11.45130.025110.040.0150.0216.0-18.00.8-1.4Ti: 0.30 to 0.60
X2CrM0Ti 18-21.45214440.025110.040.0150.0317.0-20.01.8-2.5Ti: 4x(C+N)+0.15 to 0.80 5)
X6CrMoNb 17-11.45264360.08110.040.0150.0416.0-18.00.8-1.4Nb :7x(C+N)+0.10 to 1.00
X2CrTiNb 181.45090.03110.040.01517.5-18.0Nb: 3xC+0.30 to 1.00; Ti: 0.10 to 0.60
X2CrNbZr 171.4590.03110.040.01516.0-17.5Nb: 0.35 to 0.55; Zr7x(C+N)+0.15
1.4104430F0.1211.250.060.1516.0-18.00.6
X18CrN 281.47494460.15 to 0.20110.040.0150.15-0.2526.0-29.0
X10CrAISi 71.47130.120.50-1.0010.040.0156.00-8.00AI: 0.50 to 1.00
X10CrAISi 131.47240.120.70-1.4010.040.01512.0-14.0AI: 0.70 to 1.20
X10CrAISi 251.47620.120.70-1.4010.040.01523.0-26.0Ai: 1.20 to 1.70

Duplex Stainless Steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNlOthers
X2CrNiMoN22-5-31.4462318030.03120.0350.0150.10-0.2221.0-23.02.5-3.54.5-6.5
X2CrNiN23-41.436223040.03120.0350.0150.05-0.2022.0-24.00.1-0.63.5-5.5Cu:0.10 to 0.60
X2CrNiCuN23-41.46550.03120.0350.0150.05-0.2022.0-24.00.1-0.63.5-5.5Cu:1.00 to 3.00
X2CrNiMoN25-7-4 (9)1.44125070.03120.0350.0150.24-0.3524.0-26.03.0-4.56.0-8.0
X2CrNiMoCuN25-6-31.4507F2550.030.720.0350.0150.20-0.3024.0-26.03.0-4.06.0-8.0Cu:1.00 to 2.50
X2CrNiMoCuWN25-7-41.45010.03110.0350.0150.20-0.3024.0-26.03.0-4.06.0-8.0Cu:0.50 to 1.00; W:0.50 to 1.00
X2CrNiMoSi18-5-31.44240.031.40-2.001.20-2.000.0350.0150.05-0.1018.0-19.02.5-3.04.5-5.2
X2CrNiMoN29-7-2 (9)1.44770.030.50.80-1.500.030.0150.30-0.4028.0-30.001.5-2.65.8-7.5Cu:0.80

17-4 PH Stainless steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNiOthers
17-4 PH X5CrNiCuNb16-41.45426300.070.71.50.040.1515.0-17.00.63.0-5.0Cu:3.00 to 5.00; Nb:5xC to 0.45
15-5 PH X4CrNiCuNb1641.4540.07110.040.0314.0-15.03.5-5.5
X7CrNiAl17-71.45686310.090.710.040.01516.0-18.06.5-7.8AI:0.70 to 1.50

Austenitic Stainless Steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNiOthers
X12CrMnNiiN17-7-51.43720.1515.5-7.50.0450.0150.05-0.2516.0-18.03.5-5.5
X12CrMnNiiN18-9-51.43732020.1517.5-10.50.0450.0150.05-0.2517.0-19.04.0-6.0
X2CrMnNiN17-7-51.43710.0316.0-8.00.0450.15-0.2016.0-17.003.5-5.5
X8CrMnCuNB17-8-31.45970.126.5-8.50.040.030.15-0.3016.0-18.012Cu:2.00 to 3.50; B: 0.0005-0.0050
X11CrNiMnN19-8-61.43690.07-0.150.5-1.05.0-7.50.030.0150.20-0.3017.5-19.56.5-8.5
X10CrNi18-81.4313010.05-0.15220.0450.0150.1116.0-19.00.86.0-9.5
301 L0.03120.0450.030.216.0-18.06.0-8.0
X5CrNi17-71.43190.07120.0450.030.1116.0-18.06.0-8.0
X2CrNiN18-71.4318301 LN0.03120.0450.0150.10-0.2016.5-18.56.0-8.0
3020.150.7520.0450.030.117.0-19.08.0-10.0
X8CrNiS18-91.43053030.1120.0450.15 to 0.350.1117.0-19.08.0-10.0Cu:1.00
X5CrNi18-101.43013040.07120.0450.0150.1117.5-19.58.0-10.5
X2CrNiN18-101.4311304 LN0.03120.0450.0150.12-0.2217.5-19.58.5-11.5
X6CrNiN18-101.4948304 H0.04-0.08120.0350.0150.1117.0-19.08.0-11.0
X2CrNi18-91.4307304 L0.03120.0450.0150.1117.5-19.58.0-10.5
X2CrNi19-111.4306304 L0.03120.0450.0150.1118.0-20.010.0-12.0
X5CrNiN19-91.4315304 N0.06120.0450.0150.12-0.2218.0-20.08.0-11.0
X4CrNi18-121.43033050.06120.0450.0150.1117.0-19.011.0-13.0
X15CrNiSi20-121.48280.21.5-2.520.0450.0150.1119.0-21.011.0-13.0
X12CrNi23-131.4833309 S0.15120.0450.0150.1122.0-24.012.0-14.0
X8CrNi25-211.4845310 S0.11.520.0450.0150.1124.0-26.019.0-22.0
X15CrNiSi25-211.48413140.21.5-2.520.0450.0150.1124.0-26.019.0-22.0
X5CrNiMo17-12-21.44013160.07120.0450.0150.1116.5-18.52.0-2.510.0-13.0
X3CrNiMo17-13-31.44363160.05120.0450.0150.1116.5-18.52.5-3.010.5-13.0
316 N0.080.7520.0450.030.10-0.1616.0-18.02.0-3.010.0-14.0
316 H0.04-0.100.7520.0450.0316.0-18.02.0-3.010.0-14.0
X2CrNiMo17-12-21.4404316 L0.03120.0450.0150.1116.5-18.52.0-2.510.0-13.0
X2CrNiMo18-14-31.4435316 L0.03120.0450.0150.1117.0-19.02.5-3.012.5-15.0
X2CrNiMo17-12-31.4432316 L0.03120.0450.0150.1116.5-18.52.5-3.010.5-13.0
X2CrNiMoN17-11-21.4406316 LN0.03120.0450.0150.12-0.2216.5-18.52.0-2.510.0-12.5
X2CrNiMoN17-13-31.4429316 LN0.03120.0450.0150.12-0.2216.5-18.52.5-3.011.0-14.0
X6CrNiMoTi17-12-21.4571316 Ti0.08120.0450.01516.5-18.52.0-2.510.5-13.5Ti:5 x C to 0.70
X6CrNiMoNb17-12-21.458316 Cb0.08120.0450.01516.5-18.52.0-2.510.5-13.5Nb:10 x C to 1.00
3170.080.7520.0450.030.118.0-20.03.0-4.011.0-15.0
X2CrNiMo18-15-41.4438317 L0.03120.0450.0150.1117.5-19.53.0-4.013.0-16.0
X2CrNiMoN18-12-41.4434317 LN0.03120.0450.0150.10-0.2016.5-19.53.0-4.010.5-14.0
X2CrNiMoN17-13-51.4439317 LMN0.03120.0450.0150.12-0.2216.5-18.54.0-5.012.5-14.5
X6CrNiTi18-101.45413210.08120.0450.01517.0-19.09.0-12.0Ti:5 x c to 0.70
X8CrNiTi18-101.4878321 H0.1120.0450.01517.0-19.09.0-12.0Ti:5 x C to 0.80
X6CrNiNb18-101.4553470.08120.0450.01517.0-19.09.0-12.0Nb:10 x C to 1.00
347 H0.04-0.100.7520.0450.01517.0-19.09.0-12.0Nb:8 x C to 1.00
X1CrNi25-211.43350.20.2520.0250.010.1124.0-26.00.220.0-22.0
X1CrNiMoN25-22-21.4466310 MoLN0.020.720.0250.010.10-0.1624.0-26.02.0-2.521.0-23.0
X1CrNiSi18-15-41.43610.0153.7-4.520.0250.010.1116.5-18.50.214.0-16.0
X1NiCrMoCu31-27-41.45630.020.720.030.010.1126.0-28.03.0-4.030.0-32.0Cu:0.70 to 1.50
X1CrNiMoCu25-25-51.45370.020.720.030.010.17-0.2524.0-26.04.7-5.724.0-27.0Cu:1.00 to 2.00
X1NiCrMoCu25-20-51.4539904 L0.020.720.030.010.1519.0-21.04.0-5.024.0-26.0Cu:1.20 to 2.00
X1CrNiMoCuN20-18-71.45470.020.710.030.010.18-0.2519.5-20.56.0-7.017.5-18.5Cu:0.50 to 1.00
X1CrNiMoCuN24-22-81.46520.020.52.0-4.00.030.0050.45-0.5523.0-25.07.0-8.021.0-23.0Cu:0.30 to 0.60
X1CrNiMoCNW24-22-61.46590.020.72.0-4.00.030.010.35-0.5023.0-25.05.5-6.521.0-23.0Cu:1.00 to 2.00; W:1.50 to 2.50
X1NiCrMoCuN25-20-71.45290.020.510.030.010.15-0.2519.0-21.06.0-7.024.0-26.0Cu:0.50 to 1.50
X2CrNiMnMoN25-18-6-51.45650.0315.0-7.00.030.0150.30-0.6024.0-26.04.0-5.016.0-19.0Nb0.15
X12NiCrSi35-161.48643300.0151.0-2.020.0450.0150.1115.0-17.033.0-37.0
X9CrNiSiNCe21-11-21.48350.05-0.121.4-2.510.0450.0150.12-0.2020.0-22.010.0-12.0Ce:0.03 to 0.08
X10NiCrAITi32-211.48760.12120.030.01519.0-23.030.0-34.0AI:0.15 to 0.60; Ti:0.15 to 0.60
X6NiCrNbCe32-271.48770.04-0.080.310.020.010.1126.0-28.031.0-33.0AI:0.025; Ce:0.05 to 0.10; Nb:0.6-1.0
X6CrNiSiNCe19-101.48180.04-0.081.0-2.010.0450.0150.12-0.2018.0-20.09.0-11.0Ce:0.03 to 0.08
X6NiCrSiNCe35-251.48540.04-0.081.2-2.020.040.0150.12-0.2024.0-26.034.0-36.0Ce:0.03 to 0.08

Martensitic Stainless Steel

Designation ENEN Number
Designation
GRADE
ASTM
CSiMNP
max
SNCrMoNi
X12Cr131.40064100.08-0.1511.50.040.01511.5-13.50.75
X15Cr131.40240.12-0.17110.040.01512.0-14.0
X20Cr131.40214200.16-0.2511.50.040.01512.0-14.0
X30Cr131.40284200.26-0.3511.50.040.01512.0-14.0
X39Cr131.40314200.36-0.42110.040.01512.5-14.5
X46Cr131.40344200.43-0.50110.040.01512.5-14.5
X50CrMoV151.41160.45-0.55110.040.01514.0-15.00.5-0.8V: 0.10 to 0.20
X55CrMo141.4110.48-0.60110.040.01513.0-15.00.5-0.8V0.15
X38CrMo141.44190.36-0.42110.040.01513.0-14.50.60 to 1.00
X39CrMo17-11.41220.33-0.4511.50.040.01515.5-17.50.80 to 1.301
X3CrNiMo13-41.43130.050.71.50.040.0150.0212.0-14.00.30 to 0.703.5-4.5
X4CrNiMo16-5-11.44180.060.71.50.040.0150.0215.017.00.80 to 1.504.0-6.0
X1CrNiMoCu12-5-21.44220.020.520.040.0030.0211.0-13.01.30 to 1.804.0-5.0Cu:0.20 to 0.80
X12Cr131.40054160.1511.250.060.1512.0-14.00.6
X1CrNiMoCu12-7-31.44230.020.520.040.0030.0211.0-13.02.30 to 2.806.0-7.0Cu0.20 to 0.80

Ferritic Stainless Steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNiOthers
X2CrNi 121.40030.0311.50.040.0150.0310.5-12.50.3-1.0
X2CrTi 121.45124090.03110.040.01510.5-12.5Ti6x(C+N) to 0.65
X6CrNiTi 121.45160.080.71.50.040.01510.5-12.50.5-1.5Ti: 0.05 to 0.35
X6Cr 131.4410S0.08110.040.01512.0-14.0
X6CrAI 131.40024050.08110.040.01512.0-14.0AI 0.10 to 0.30
X5CrNiMoTi 5-21.45890.08110.040.01513.5-15.50.2-121.0-2.5Ti:0.30 to 0.50
4290.12110.040.0314.0-16.0
X1CrNb 151.45950.02110.0250.0150.0214.0-16.0Nb: 0.20 to 0.60
X6Cr 171.40164300.08110.040.01516.0-18.0
X2CrTi 171.4520.0250.50.50.040.0150.01516.0-18.0Ti: 0.30 to 0.60
X3CrNb 171.45110.05110.040.01516.0-18.0Nb: 12xC to 1.00
X6CrNi 17-11.40170.08110.040.01516.0-18.01.2-1.6
X6CrMo 17-11.41134340.08110.040.01516.0-18.00.8-1.4
X3CrTi 171.4514390.05110.040.01516.0-18.0Ti: 4x(C+N)+0.15 to 0.80 5)
X2CrM0Ti 17-11.45130.025110.040.0150.0216.0-18.00.8-1.4Ti: 0.30 to 0.60
X2CrM0Ti 18-21.45214440.025110.040.0150.0317.0-20.01.8-2.5Ti: 4x(C+N)+0.15 to 0.80 5)
X6CrMoNb 17-11.45264360.08110.040.0150.0416.0-18.00.8-1.4Nb :7x(C+N)+0.10 to 1.00
X2CrTiNb 181.45090.03110.040.01517.5-18.0Nb: 3xC+0.30 to 1.00; Ti: 0.10 to 0.60
X2CrNbZr 171.4590.03110.040.01516.0-17.5Nb: 0.35 to 0.55; Zr7x(C+N)+0.15
1.4104430F0.1211.250.060.1516.0-18.00.6
X18CrN 281.47494460.15 to 0.20110.040.0150.15-0.2526.0-29.0
X10CrAISi 71.47130.120.50-1.0010.040.0156.00-8.00AI: 0.50 to 1.00
X10CrAISi 131.47240.120.70-1.4010.040.01512.0-14.0AI: 0.70 to 1.20
X10CrAISi 251.47620.120.70-1.4010.040.01523.0-26.0Ai: 1.20 to 1.70

Duplex Stainless Steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNlOthers
X2CrNiMoN22-5-31.4462318030.03120.0350.0150.10-0.2221.0-23.02.5-3.54.5-6.5
X2CrNiN23-41.436223040.03120.0350.0150.05-0.2022.0-24.00.1-0.63.5-5.5Cu:0.10 to 0.60
X2CrNiCuN23-41.46550.03120.0350.0150.05-0.2022.0-24.00.1-0.63.5-5.5Cu:1.00 to 3.00
X2CrNiMoN25-7-4 (9)1.44125070.03120.0350.0150.24-0.3524.0-26.03.0-4.56.0-8.0
X2CrNiMoCuN25-6-31.4507F2550.030.720.0350.0150.20-0.3024.0-26.03.0-4.06.0-8.0Cu:1.00 to 2.50
X2CrNiMoCuWN25-7-41.45010.03110.0350.0150.20-0.3024.0-26.03.0-4.06.0-8.0Cu:0.50 to 1.00; W:0.50 to 1.00
X2CrNiMoSi18-5-31.44240.031.40-2.001.20-2.000.0350.0150.05-0.1018.0-19.02.5-3.04.5-5.2
X2CrNiMoN29-7-2 (9)1.44770.030.50.80-1.500.030.0150.30-0.4028.0-30.001.5-2.65.8-7.5Cu:0.80

17-4 PH Stainless steel

Designation ENEN Number DesignationGRADE ASTMCSiMNP maxSNCrMoNiOthers
17-4 PH X5CrNiCuNb16-41.45426300.070.71.50.040.1515.0-17.00.63.0-5.0Cu:3.00 to 5.00; Nb:5xC to 0.45
15-5 PH X4CrNiCuNb1641.4540.07110.040.0314.0-15.03.5-5.5
X7CrNiAl17-71.45686310.090.710.040.01516.0-18.06.5-7.8AI:0.70 to 1.50

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