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- Carbon Steel Chemical Properties
| Speci -cation | Grade | Chemical Composition [%] | Mechanical Properties | |||||||||||||||||||
| C | Mn | P | S | Si | Cr | Mo | Cu | Ni | V | Yield Strength | Tensile Strength | % Elongation (G.L. 50 mm WT 8 mm) e (min.) | ||||||||||
| Min. | Min. | |||||||||||||||||||||
| Min | Max. | Min | Max. | Max. | Max. | Min. | Max | Min. | Max | Min. | Max | Max | Max | Max | PSI | MPa | PSI | MPa | ||||
| HYDROCARBON PROCESS INDUSTRY/STRUCTURAL/PRESSURE VESSEL TUBES | ||||||||||||||||||||||
| ASTM | A | – | 0.25 | – | 0.95 | 0.05 | 0.045 | – | – | – | 0.4 | – | 0.15 | 0.40 for S | 0.4 | 0.08 | 30,000 | 205 | 48,000 | 330 | e=625000 A02/U09 | |
| A-53 | B | – | 0.3 | – | 1.2 | 0.05 | 0.045 | – | – | – | 0.4 | – | 0.15 | 0.40 for S | 0.4 | 0.08 | 35,000 | 240 | 60,000 | 415 | ||
| ASTM | A | – | 0.25 | 0.27 | 0.93 | 0.035 | 0.035 | 0.1 | – | – | 0.4 | – | 0.15 | 0.4 | 0.4 | 0.08 | 30,000 | 205 | 48,000 | 330 | 35L / 25T | |
| A-106 | B | – | 0.3 | 0.29 | 1.06 | 0.035 | 0.035 | 0.1 | – | – | 0.4 | – | 0.15 | 0.4 | – | 0.08 | 35,000 | 240 | 60,000 | 415 | 30L / 16.5T | |
| – | c | – | 0.35 | 0.29 | 1.06 | 0.035 | 0.035 | 0.1 | – | – | 0.4 | – | 0.15 | 0.4 | – | 0.08 | 40,000 | 275 | 70,000 | 485 | 30L / 16.5T | |
| ASTM | 1 | – | 0.3 | 0.4 | 1.06 | 0.025 | 0.025 | – | – | – | – | – | – | – | – | – | 30,000 | 205 | 55,000 | 380 | 35 | |
| A333 & A 334 | 6 | – | 0.3 | 0.29 | 1.06 | 0.025 | 0.025 | 0.1 | – | – | – | – | – | – | – | – | 35,000 | 240 | 60,000 | 415 | 30 | |
| SEAMLESS COLD DRAWN PRECISION STEEL TUBES FOR MECHANICAL APPLICATIONS/HYDRAULIC/PNEUMATIC POWER SYSTEMS | ||||||||||||||||||||||
| EN 10305-1/ | E 235 | – | 0.17 | – | 1.2 | 0.025 | 0.025 | – | 0.35 | – | – | – | – | – | – | 0.02 | – | 235 | – | 340 | 25 | |
| EN10305-4 | E 355 | 0.22 | 1.6 | 0.025 | 0.025 | 0.55 | 0.02 | 355 | 490 | 22 | ||||||||||||
| EN 10216-1 | P195 TR1 | – | 0.13 | – | 0.7 | 0.025 | 0.02 | – | 0.35 | – | 0.3 | – | 0.08 | 0.3 | 0.3 | – | – | 195 | – | 320 | 27 | |
| P235 TR1 | 0.16 | 1.2 | 0.025 | 0.02 | 0.35 | 0.3 | 0.08 | 0.3 | 0.3 | 235 | 360 | 25 | ||||||||||
| EN 10216-2 | P235 GH | – | 0.16 | – | 1.2 | 0.025 | 0.02 | – | 0.35 | – | 0.3 | – | 0.08 | 0.3 | 0.3 | 0.02 | – | – | – | – | – | |
| DIN 2391 | St – 45 | – | 0.17 | 0.4 | – | 0.025 | 0.025 | – | 0.35 | – | – | – | – | – | – | – | NBK : 215 / GBK : – | NBK : 340 / GBK : 315 | NBK : 470 | |||
| St – 45 | – | 0.21 | 0.4 | – | 0.025 | 0.025 | – | 0.35 | – | – | – | – | – | – | – | NBK : 255 / GBK : – | NBK : 440 / GBK : 390 | NBK : 570 | ||||
| St – 52 | – | 0.22 | – | 1.6 | 0.025 | 0.025 | – | 0.55 | – | – | – | – | – | – | – | NBK : 355 / GBK : – | NBK : 490 / GBK : 490 | NBK : 630 | ||||
| ASTM | SAE 1010 | 0.08 | 0.13 0.20 | 0.3 | 0.6 | 0.04 | 0.05 | – | – | – | – | – | – | – | – | – | As per Customer requirements | |||||
| A-519 | SAE 1018 | 0.15 | 0.28 | 0.6 | 0.9 | 0.04 | 0.05 | – | – | – | – | – | – | – | – | – | ||||||
| – | SAE 1026 | 0.22 | 0.38 | 0.6 | 0.9 | 0.04 | 0.05 | – | – | – | – | – | – | – | – | – | ||||||
| – | SAE 1035 | 0.32 | 0.44 | 0.6 | 0.9 | 0.04 | 0.05 | – | – | – | – | – | – | – | – | – | ||||||
| – | SAE 1040 | 0.37 | 0.21 | 0.6 | 0.9 | 0.04 | 0.05 | – | – | – | – | – | – | – | – | – | ||||||
| – | SAE 1518 | 0.15 | 0.44 | 1.1 | 1.4 | 0.04 | 0.05 | – | – | – | – | – | – | – | – | – | ||||||
| – | SAE 1541 | 0.36 | 0.33 | 1.35 | 1.65 | 0.04 | 0.05 | – | – | – | – | – | – | – | – | – | ||||||
| – | SAE 4130 | 0.28 | – | 0.4 | 0.6 | 0.04 | 0.04 | 0.15 | 0.35 | 0.8 | 1.1 | 0.15 | 0.25 | – | – | – | ||||||
| BOILER/HEAT EXCHANGER/SUPERHEATER & CONDENSER TUBES | ||||||||||||||||||||||
| ASTM A179 | – | 0.06 | 0.18 | 0.27 | 0.63 | 0.035 | 0.035 | – | – | – | – | – | – | – | – | – | 26,000 | 180 | 47,000 | 325 | 35 | |
| ASTM A192 | – | 0.06 | 0.18 | 0.27 | 0.63 | 0.035 | 0.035 | – | 0.25 | – | – | – | – | – | – | – | 26,000 | 180 | 47,000 | 325 | 35 | |
| ASTM | A-1 | – | 0.27 | – | 0.93 | 0.035 | 0.035 | 0.1 | – | – | – | – | – | – | – | – | 37,000 | 255 | 60,000 | 415 | 30 | |
| A 210 | C | – | 0.35 | 0.29 | 1.06 | 0.035 | 0.035 | 0.1 | – | – | – | – | – | – | – | – | 40,000 | 275 | 70,000 | 485 | 30 | |
| ASTM | T-11 | 0.05 | 0.15 | 0.3 | 0.6 | 0.025 | 0.025 | 0.5 | 1 | 1 | 1.5 | 0.44 | 0.65 | – | – | – | 30,000 | 205 | 60,000 | 415 | 30 | |
| A 213 | T-12 | 0.05 | 0.15 | 0.3 | 0.61 | 0.025 | 0.025 | – | 0.5 | 0.8 | 1.25 | 0.44 | 0.65 | – | – | – | 32,000 | 220 | 60,000 | 415 | 30 | |
| – | T-22 | 0.05 | 0.15 | 0.3 | 0.6 | 0.025 | 0.025 | – | 0.5 | 1.9 | 2.6 | 0.87 | 1.13 | – | – | – | 30,000 | 205 | 60,000 | 415 | 30 | |
| ASTM | P-11 | 0.05 | 0.15 | 0.3 | 0.6 | 0.025 | 0.025 | 0.5 | 1 | 1 | 1.5 | 0.44 | 0.65 | – | – | – | 30,000 | 205 | 60,000 | 415 | 30 | |
| A335 | P-12 | 0.05 | 0.15 | 0.3 | 0.61 | 0.025 | 0.025 | – | 0.5 | 0.8 | 1.25 | 0.44 | 0.65 | – | – | – | 32,000 | 220 | 60,000 | 415 | 30 | |
| – | P-22 | 0.05 | 0.15 | 0.3 | 0.6 | 0.025 | 0.025 | – | 0.5 | 1.9 | 2.6 | 0.87 | 1.13 | – | – | – | 30,000 | 205 | 60,000 | 415 | 30 | |
| BS 3059 Pt I | 320 | – | 0.16 | 0.3 | 0.7 | 0.04 | 0.04 | 0.1 | 0.35 | – | – | – | – | – | – | – | 28,000 | 195 | 46,000 | 320 | 69,500 | |
| BS 3059 Pt II | 622-490 | 0.08 | 0.15 | 0.4 | 0.7 | 0.03 | 0.03 | – | 0.5 | 2 | 2.5 | 0.9 | 1.2 | – | – | – | 40,000 | 275 | 71,000 | 490 | 93,000 | |
| DIN 1629 | St- 37.0 | – | 0.17 | – | – | 0.04 | 0.04 | – | – | – | – | – | – | – | – | – | WT 16mm = 235 / WT>16mm = 225 | 350 | – | |||
| St – 52 | – | 0.22 | – | – | 0.04 | 0.035 | – | – | – | – | – | – | – | – | – | WT 16mm = 355 / WT>16mm = 345 | – | Long 21 / Trans 19 | ||||
| DIN 17175 | St – 35.8 | – | 0.17 | 0.4 | 0.8 | 0.04 | 0.04 | 0.1 | 0.35 | – | – | – | – | – | – | – | WT 16mm = 235 / WT>16mm = 225 | 360 | 480 | |||
| St – 45.8 | – | 0.21 | 0.4 | 1.2 | 0.04 | 0.04 | 0.1 | 0.35 | – | – | – | – | – | – | – | WT 16mm = 255 / WT>16mm = 245 | 410 | 530 | ||||
| RAILWAYS | ||||||||||||||||||||||
| IS:1239 Pt I | – | – | – | – | – | 0.05 | 0.05 | – | – | – | – | – | – | – | – | – | – | – | 46,500 | 320 | – | |
| IS:1161 | YST-210 | – | 0.12 | – | 0.6 | 0.04 | 0.04 | – | – | – | – | – | – | – | – | – | 30,500 | 210 | 48,000 | 330 | – | |
| YST-240 | – | 0.16 | – | 1.2 | 0.04 | 0.04 | – | – | – | – | – | – | – | – | – | 35,000 | 240 | 59,500 | 410 | – | ||
| YST-310 | – | 0.25 | – | 1.3 | 0.04 | 0.04 | – | – | – | – | – | – | – | – | – | 45,000 | 310 | 64,500 | 445 | – | ||
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