Stainless Steels
Stainless steels got their name when they were initially used in the manufacture of cutlery - literally, they would not stain. It is better to consider stainless steels as metals that are particularly resistant to corrosion.
These kinds of metals are iron alloys that contain a minimum of 10.5% Chromium. This element forms a self-healing very tight transparent layer over a steel surface and protects it from corrosion by stopping further oxidation. In addition to this alloying element, others are added to change the structure of the metal and give it different properties, for example,
- Abrasion Resistance
- Appearance
- Corrosion Resistance
- Oxidation Resistance at High Temperatures
- Strength and Ductility at Cryogenic Temperatures
- Strength at Elevated Temperatures
- Machineability
Commonly metal and non-metal elements are added to impart various properties:
- Aluminium - improves scaling resistance.
- Carbon - increases strength, but can reduce corrosion resistance.
- Chromium - forms a self-healing transparent film to protect against corrosion.
- Colombium - combines with Carbon to reduce intergranular corrosion.
- Copper - increases resistance to certain corrosive environments.
- Manganese - improves hot working properties and promotes austenite stability.
- Molybdenum - increases corrosion resistance and strength at high temperatures and useful in chloride environments.
- Nickel - increases ductility, high temperature strength and corrosion resistance, especially in marine environments.
- Silicon - increases scaling resistance and imparts carburizing resistance.
- Titanium - combines with Carbon to reduce intergranular corrosion.
The following are chemical composition tables for Stainless Steels. Please note that these are not standards but grade composition ranges only.
All information is given purely for reference purposes
Austenitic Stainless Steels
All 200 and 300 series stainless steels contain between 15-30% Chromium and 2-20% Nickel to give the materials good surface quality, formability and increased corrosion resistance.
It must be noted that when they are cold worked, they can become slightly magnetic.
Austenitic Series 200 Grade Stainless Steels
| UNS No | SAE | AISI | C | Si | Mn | P | S | Cr | Mo | Ni | N | Others |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S20100 | 201 | 0.15 | 1.00 | 5.5-7.5 | 0.060 | 0.030 | 16.0-18.0 | - | 3.5-6.5 | 0.25 | - | |
| S20161 | 0.15 | 3.0-4.0 | 4.0-6.0 | 0.045 | 0.030 | 15.0-18.0 | - | 4.0-6.0 | 0.08-0.20 | - | ||
| S20162 | 0.15 | 2.5-4.5 | 4.0-8.0 | 0.040 | 0.040 | 16.5-21.0 | 0.5-2.5 | 6.0-10.0 | 0.05-0.25 | - | ||
| S20200 | 200 | 0.15 | 1.00 | 7.5-10.0 | 0.060 | 0.030 | 17.0-19.0 | - | 4.0-6.0 | 0.25 | - | |
| S20500 | 205 | 0.12-0.25 | 1.00 | 14.0-15.5 | 0.060 | 0.030 | 16.5-18.0 | - | 1.0-1.7 | 0.32-0.40 | - | |
| S20910 | XM-19 | 0.06 | 1.00 | 4.0-6.0 | 0.045 | 0.030 | 20.5-23.5 | 1.5-3.0 | 11.5-13.5 | 0.20-0.40 | Cb 0.1-0.3, V 0.1-0.3 | |
| S21800 | - | 0.10 | 3.5-4.5 | 7.0-9.0 | 0.060 | 0.030 | 16.0-18.0 | - | 8.0-9.0 | 0.08-0.118 | - | |
| S21900 | XM-10 | 0.08 | 1.00 | 8.0-10.0 | 0.045 | 0.030 | 19.0-21.5 | - | 5.5-7.5 | 0.15-0.40 | - | |
| S21904 | XM-11 | 0.04 | 1.00 | 8.0-10.0 | 0.045 | 0.030 | 19.0-21.5 | - | 5.5-7.5 | 0.15-0.40 | - | |
| S24000 | XM-29 | 0.08 | 1.00 | 11.5-14.5 | 0.060 | 0.030 | 17.0-19.0 | - | 2.3-3.7 | 0.20-0.40 | - | |
| S24100 | XM-28 | 0.15 | 1.00 | 11.0-14.0 | 0.045 | 0.030 | 16.5-19.0 | - | 0.5-2.5 | 0.20-0.45 | - | |
| S28200 | - | 0.15 | 1.00 | 17.0-19.0 | 0.045 | 0.030 | 17.0-19.0 | 0.75-1.25 | - | 0.40-0.60 | Cu 0.75-1.25 |
Austenitic Series 300 Grade Stainless Steels
Chemical composition % by mass max unless stated
| UNS No | SAE No | AISI | C | Si | Mn | P | S | Cr | Mo | Ni | Others |
|---|---|---|---|---|---|---|---|---|---|---|---|
| S30100 | 30301 | 301 | 0.15 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | - | 6.0-8.0 | N 0.10 |
| S30103 | - | 301L | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | - | 6.0-8.0 | N 0.20 |
| S30153 | - | 301LN | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | - | 6.0-8.0 | N 0.07-0.20 |
| S30200 | 30302 | 302 | 0.15 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | - | 8.0-10.0 | N 0.10 |
| S30215 | 30302B | 302B | 0.15 | 2.00-3.00 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | - | 8.0-10.0 | - |
| S30300 | 30303 | 303 | 0.15 | 1.00 | 2.00 | 0.20 | 0.15 min | 17.0-19.0 | - | 8.0-10.0 | - |
| S30310 | - | XM-5 (303+) | 0.15 | 1.00 | 2.50-4.50 | 0.20 | 0.25 min | 17.0-19.0 | - | 7.0-9.0 | - |
| S30323 | 30303Se | 303Se | 0.15 | 1.00 | 2.00 | 0.20 | 0.060 | 17.0-19.0 | - | 8.0-10.0 | Se 0.15 min |
| S30330 | - | 303Cu | 0.15 | 1.00 | 2.00 | 0.15 | 0.10 min | 17.0-19.0 | - | 6.0-10.0 | Cu 2.5-4.0, Se 0.10 |
| S30400 | 30304 | 304 | 0.07 | 0.75 | 2.00 | 0.045 | 0.030 | 17.5-19.5 | - | 8.0-10.5 | N 0.10 |
| S30400 | 30304 | 304 | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | - | 8.0-11.0 | - |
| S30403 | 30304L | 304L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 17.5-19.5 | - | 8.0-12.0 | N 0.10 |
| S30403 (A276) | 30304L | 304L | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | - | 8.0-12.0 | - |
| S30430 | - | 302HQ | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | - | 8.0-10.0 | Cu 3.0-4.0 |
| S30452 | - | XM-21 (304HN) | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | - | 8.0-10.0 | N 0.16-0.30 |
| S30453 | - | 304LN | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | - | 8.0-12.0 | N 0.10-0.16 |
| S30454 | - | - | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | - | 8.0-11.0 | N 0.16-0.30 |
| S30500 | 30305 | 305 | 0.12 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | - | 10.5-13.0 | - |
| S30800 | 30308 | 308 | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 19.0-21.0 | - | 10.0-12.0 | - |
| S31600 | 30316 | 316 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 2.0-3.0 | 10.0-14.0 | N 0.10 |
| S31603 | 30316L | 316L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 2.0-3.0 | 10.0-14.0 | N 0.10 |
| S31635 | - | 316Ti | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 2.0-3.0 | 10.0-14.0 | N 0.10 |
| S31635 | - | 316Ti | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 2.0-3.0 | 10.0-14.0 | Ti 5x(C+N)/0.70, N 0.10 |
| S31640 | - | 316Cb | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 2.0-3.0 | 10.0-14.0 | Nb 10xC/1.10, N 0.10 |
| S31653 | - | 316LN | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 2.0-3.0 | 10.0-14.0 | N 0.10-0.16 |
| S31700 | 30317 | 317 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 3.0-4.0 | 11.0-15.0 | N 0.10 |
| S31703 | - | 317L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 3.0-4.0 | 11.0-15.0 | N 0.10 |
| S31725 | - | 317LM | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 4.0-5.0 | 13.5-17.5 | N 0.20 |
| S31726 | - | 317LMN | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-20.0 | 4.0-5.0 | 13.5/17.5 | N 0.10-0.20 |
| S31753 | - | 317LN | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 3.0-4.0 | 11.0-15.0 | N 0.10-0.22 |
| S32100 | 30321 | 321 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | - | 9.0-12.0 | Ti 5x C/0.70 min, N 0.10 |
| S34700 | 30347 | 347 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | - | 9.0-13.0 | Nb+Ta 10xC/1.0 min |
| S34720 | - | 347F | 0.08 | 1.00 | 2.00 | 0.040 | 0.18-0.35 | 17.0-19.0 | 0.75 | 9.0-12.0 | Nb 10xC / 1.10; Cu 0.75; Ta 0.05 |
| S34723 | - | 347FSe | 0.08 | 1.00 | 2.00 | 0.11-0.17 | 0.030 | 17.0-19.0 | 0.75 | 9.0-12.0 | Nb 10xC / 1.10; Cu 0.75; Se 0.15/0.35; Ta 0.05 |
| S34800 | 30348 | 348 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | - | 9.0-13.0 | Nb+Ta 10 x C / 1.00; Ta:0.10 max; Co 0.20 |
| S38400 | 30384 | 384 | 0.04 | 1.00 | 2.00 | 0.045 | 0.030 | 15.0-17.0 | - | 17.0-19.0 | - |
Special austenitic grades
| Designation | Chemical composition % by mass max unless stated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UNS No | SAE No | AISI No / Common Name | C | Si | Mn | P | S | Cr | Mo | Ni | Others |
| N08020 | - | 20Cb-3 | 0.07 | 1.00 | 2.00 | 0.045 | 0.035 | 19.0/21.0 | 2.00/3.00 | 32.0/38.0 | Cu 3.0/4.0; Nb 8xC / 1.00 |
| N08024 | - | 20Mo-4 | 0.03 | 0.50 | 1.00 | 0.035 | 0.035 | 22.5/25.0 | 3.5/5.0 | 35.0/40.0 | Cu 0.50/1.50; Nb+Ta 0.15/0.35 |
| N08026 | - | 20Mo6 | 0.03 | 0.50 | 1.00 | 0.03 | 0.03 | 22.00/26.00 | 5.00/6.70 | 33.0/37.20 | Cu 2.00/4.00; N 0.10/0.16 |
| N08028 | - | Sanicro28 | 0.030 | 1.0 | 2.50 | 0.030 | 0.030 | 26.0/28.0 | 3.0/4.0 | 29.5/32.5 | Cu 0.6/1.4 |
| N08366 | - | AL-6X | 0.03 | 1.00 | 2.00 | 0.040 | 0.030 | 20.0/22.0 | 6.0/7.0 | 23.5/25.5 | - |
| N08367 | - | AL-6XN | 0.030 | 1.00 | 2.00 | 0.040 | 0.030 | 20.0/22.0 | 6.0/7.0 | 23.5/25.5 | Cu 0.75; N 0.18/0.25 |
| N08700 | - | JS700 | 0.04 | 1.00 | 2.00 | 0.040 | 0.030 | 19.0/23.0 | 4.3/5.0 | 24.0/26.0 | Cu 0.50; Nb 8xC / 0.40 |
| N08904 | - | 904L | 0.020 | 1.00 | 2.00 | 0.045 | 0.035 | 19.0/23.0 | 4.0/5.0 | 23.0/28.0 |
Cu 1.0/2.0 N 0.10 |
| N08925 | - | 1925hMo | 0.020 | 0.50 | 1.0 | 0.045 | 0.030 | 19.0/21.0 | 6.0/7.0 | 24.0/26.0 | Cu 0.80/1.50 N 0.10/0.20 |
| N08926 | - | - | 0.020 | 0.50 | 2.00 | 0.030 | 0.010 | 19.0/21.0 | 6.0/7.0 | 24.0/26.0 | Cu 0.50/1.50 N 0.15/0.25 |
| S30600 | - | Cronifer 1815 LCSi | 0.018 | 3.7/4.3 | 2.00 | 0.020 | 0.020 | 17.0/18.5 | 0.20 | 14.0/15.5 | Cu 0.50 |
| S30601 | - | - | 0.015 | 5.0/5.6 | 0.50/0.80 | 0.030 | 0.013 | 17.0/18.0 | 0.20 | 17.0/18.0 | Cu 0.05; N 0.35 |
| S31050 | - | 310MoLN | 0.020 | 0.50 | 2.00 | 0.030 | 0.010 | 24.0/26.0 | 1.60/2.60 | 20.5/23.5 | N 0.09/0.15 |
| S31254 | - | 254SMO | 0.020 | 0.80 | 1.00 | 0.030 | 0.010 | 19.5/20.5 | 6.0/6.5 | 17.5/18.5 | Cu 0.50/1.00; N 0.18/0.22 |
| S31266 | - | - | 0.030 | 1.00 | 2.0/4.0 | 0.035 | 0.020 | 23.0/25.0 | 5.2/6.2 | 21.0/24.0 | Cu 1.00/2.50; N 0.35/0.60; W 1.50/2.50 |
| S31277 | - | - | 0.020 | 0.50 | 3.00 | 0.030 | 0.010 | 20.5/23.0 | 6.5/8.0 | 26.0/28.0 | Cu 0.5/1.50; N 0.30/0.40 |
| S32050 | - | - | 0.030 | 1.00 | 1.50 | 0.035 | 0.020 | 22.0/24.0 | 6.0/6.8 | 20.0/23.0 |
N 0.21/0.32 Cu 0.40 |
| S32615 | - | - | 0.07 | 4.8/6.0 | 2.00 | 0.045 | 0.030 | 16.5/19.5 | 0.30/1.50 | 19.0/22.0 | Cu 1.50/2.50 |
| S32654 | - | 654SMO | 0.020 | 0.50 | 2.0/4.0 | 0.030 | 0.005 | 24.0/25.0 | 7.0/8.0 | 21.0/23.0 | Cu 0.30/0.60; N 0.45/0.55 |
| S34565 | - | Nirosta 4565S | 0.030 | 1.00 | 5.0/7.0 | 0.030 | 0.010 | 23.0/25.0 | 4.0/5.0 | 16.0/18.0 | N 0.40/0.60; Nb 0.10 |
| S35135 | - | - | 0.08 | 0.60/1.00 | 1.00 | 0.045 | 0.015 | 20.0/25.0 | 4.0/4.8 | 30./38.0 | Ti 0.40/1.00 |
| S38100 | - | XM-15 (18-18-2) | 0.08 | 1.50/2.50 | 2.00 | 0.030 | 0.030 | 17.0/19.0 | - | 17.5/18.5 | - |
| S38815 | - | - | 0.030 | 5.5/6.5 | 2.00 | 0.040 | 0.020 | 13.0/15.0 | 0.75/1.50 | 13.0/17.0 | Cu 0.75/1.50; Al 0.30 |
Special ferritic grades
| Designation | Chemical composition % by mass max unless stated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UNS No | SAE No | AISI No / Common Name | C | Si | Mn | P | S | Cr | Mo | Ni | Others |
| S32803 | - | Cronifer 2803Mo | 0.015 | 0.55 | 0.50 | 0.020 | 0.0035 | 28.0/29.0 | 1.80/2.50 | 3.0/4.0 | N 0.020; (C+N) 0.030; Nb 0.15/0.50 |
| S43035 | - | 435 | 0.030 | 1.00 | 1.00 | 0.040 | 0.030 | 17.0/19.0 | - | 0.50 | Ti [0.20+4(C+N)] / 1.10; Al 0.15 |
| S43903 | 51439LL | 439LL | 0.014 | 1.00 | 1.00 | 0.040 | 0.030 | 17.0/19.0 | - | 0.50 | Ti [0.20+4(C+N)] / 1.10; Al 0.15; N:0.04 |
| S43932 | - | 441 | 0.030 | 1.00 | 1.00 | 0.040 | 0.030 | 17.0/19.0 | - | 0.50 | N 0.030; (Ti+Nb) [0.20+4(C+N)] / 0.75; Al 0.15 |
| S43940 | - | - | 0.030 | 1.00 | 1.00 | 0.040 | 0.015 | 17.5/18.5 | - | - | Ti 0.10/0.60; Nb [0.30+(3xC)] min |
| S44400 | - | 444 18Cr-2Mo | 0.025 | 1.00 | 1.00 | 0.040 | 0.030 | 17.5/19.5 | 1.75/2.50 | 1.00 | N 0.035; (Ti+Nb)[0.20+4(C+N)] / 0.80 |
| S44500 | - | - | 0.020 | 1.00 | 1.00 | 0.040 | 0.012 | 19.0/21.0 | - | 0.60 | N 0.03; Cu 0.30/0.60; Nb 10x(C+N) / 0.80 |
| S44626 | - | XM-33 (26-1Ti) | 0.06 | 0.75 | 0.75 | 0.040 | 0.020 | 25.0/27.0 | 0.75/1.50 | 0.50 | N 0.04; Cu 0.20; Ti 0.20/1.00 Ti 7x(C+N) min |
| S44627 | - | XM-27 | 0.010 | 0.40 | 0.40 | 0.020 | 0.020 | 25.0/27.0 | 0.75/1.50 | 0.50 | N 0.015; Cu 0.20; Nb 0.05/0.20; (Ni+Cu) 0.50 |
| S44635 | - | Nu Monit (25-4-4) | 0.025 | 0.75 | 1.00 | 0.040 | 0.030 | 24.5/26.0 | 3.5/4.5 | 3.5/4.5 | N 0.035; (Ti+Nb){0.20+4(C+N)] / 0.80 |
| S44660 | - | Sea-cure (26-3-3) | 0.030 | 1.00 | 1.00 | 0.040 | 0.030 | 25.0/28.0 | 3.0/4.0 | 1.0/3.5 | N 0.040; (Ti+Nb)0.20 / 1.00; (Ti+Nb) [6x(C+N)] min |
| S44700 | - | 29-4 | 0.010 | 0.20 | 0.30 | 0.025 | 0.020 | 28.0/30.0 | 3.5/4.2 | 0.15 | N 0.020; Cu 0.15; (C+N) 0.025 |
| S44735 | - | - | 0.030 | 1.00 | 1.00 | 0.040 | 0.030 | 28.0/30.0 | 3.6/4.2 | 1.00 | N 0.045; (Ti+Nb)0.20/1.00; (Ti+Nb) 6x (C+N) min |
| S44800 | - | 29-4-2 | 0.010 | 0.20 | 0.30 | 0.025 | 0.020 | 28.0/30.0 | 3.5/4.2 | 2.00/2.50 | N 0.020; Cu 0.15; (C+N) 0.025 |
| S46800 | - | - | 0.030 | 1.00 | 1.00 | 0.040 | 0.030 | 18.0/20.0 | - | 0.50 | N 0.030; Ti 0.07/0.30; Nb 0.10/0.60; (Ti+Nb) [0.20+4(C+N)] / 0.80 |
Martensitic and Precipitation Hardening Stainless Steels
These types of stainless steels usually contain between 11.5 to 18% chromium and have a higher carbon content that Ferritic Steels. This makes them particularly heat treatable to increase their hardness and strength.
| Designation | Chemical composition % by mass max unless stated | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UNS No | SAE No | AISI No / Common Name | C | Si | Mn | P | S | Cr | Mo | Ni | Others |
| S13800 | - | XM-13 PH13-8Mo | 0.05 | 0.10 | 0.20 | 0.010 | 0.008 | 12.25/13.25 | 2.00/2.50 | 7.50/8.50 | N 0.01; Al 0.90/1.35 |
| S15500 | - | XM-12 15-5PH | 0.07 | 1.00 | 1.00 | 0.040 | 0.030 | 14.0/15.5 | - | 3.50/5.50 | Cu 2.5/4.5; Nb+Ta 0.15/0.45 |
| S15700 | - | 632 15-7PH | 0.09 | 1.00 | 1.00 | 0.040 | 0.030 | 14.00/16.00 | 2.00/3.00 | 6.50/7.75 | Al 0.75/1.50 |
| S17400 | - | 630 17-4PH | 0.07 | 1.00 | 1.00 | 0.040 | 0.030 | 15.00/17.50 | - | 3.00/5.00 | Cu 3.00/5.00; Nb+Ta 0.15/0.45 |
| S17600 | - | 635 | 0.08 | 1.00 | 1.00 | 0.040 | 0.030 | 16.00/17.50 | - | 6.00/7.50 | Al 0.40; Ti 0.40/1.20 |
| S17700 | - | 631 17-7PH | 0.09 | 1.00 | 1.00 | 0.040 | 0.030 | 16.00/18.00 | - | 6.50/7.75 | Al 0.75/1.50 |
| S35000 | - | 633 | 0.07/0.11 | 0.50 | 0.50/1.25 | 0.040 | 0.030 | 16.00/17.00 | 2.50/3.25 | 4.00/5.00 | N 0.07/0.13 |
| S35500 | - | 634 | 0.10/0.15 | 0.50 | 0.50/1.25 | 0.040 | 0.030 | 15.00/16.00 | 2.50/3.25 | 4.00/5.00 | N 0.07/0.13 |
| S41000 | 51410 | 410 | 0.08/0.15 | 1.00 | 1.00 | 0.040 | 0.030 | 11.5/13.5 | - | 0.75 | - |
| S41040 | - | XM-30 | 0.18 | 1.00 | 1.00 | 0.040 | 0.030 | 11.0/13.0 | - | - | Nb 0.05/0.30 |
| S41400 | 51414 | 414 | 0.15 | 1.00 | 1.00 | 0.040 | 0.030 | 11.5/13.5 | - | 1.25/2.50 | - |
| S41500 | - | F6NM | 0.05 | 0.60 | 0.50/1.00 | 0.030 | 0.030 | 11.5/14.0 | 0.50/1.00 | 3.5/5.5 | - |
| S41600 | 51416 | 416 | 0.15 | 1.00 | 1.25 | 0.060 | 0.15 min | 12.0/14.0 | - | - | - |
| S41610 | - | XM-6 (416 Plus X) | 0.15 | 1.00 | 1.50/2.50 | 0.06 | 0.15 min | 12.0/14.0 | - | - | - |
| S41623 | 51416Se | 416Se | 0.15 | 1.00 | 1.25 | 0.060 | 0.060 | 12.0/14.0 | - | - | Se 0.15 min |
| S42000 | 51420 | 420 | 0.15 min | 1.00 | 1.00 | 0.040 | 0.030 | 12.0/14.0 | - | - | - |
| S42010 | - | Trim Rite | 0.15/0.30 | 1.00 | 1.00 | 0.040 | 0.030 | 13.5/15.00 | 0.40/0.85 | 0.35/0.85 | - |
| S42020 | 51420F | 420F | 0.30/0.40 | 1.00 | 1.25 | 0.060 | 0.15 min | 12.0/14.0 | - | 0.50 | Cu 0.60 |
| S42023 | 51420FSe | 420FSe | 0.20/0.40 | 1.00 | 1.25 | 0.060 | 0.060 | 12.0/14.0 | - | - | Se 0.15 min Cu 0.60 |
| S42900 | 51429 | 429 | 0.12 | 1.00 | 1.00 | 0.040 | 0.030 | 14.0/16.0 | - | - | - |
| S43100 | 51431 | 431 | 0.20 | 1.00 | 1.00 | 0.040 | 0.030 | 15.0/17.0 | - | 1.25/2.50 | - |
| S44002 | 51440A | 440A | 0.60/0.75 | 1.00 | 1.00 | 0.040 | 0.030 | 16.0/18.0 | 0.75 | - | - |
| S44003 | 51440B | 440B | 0.75/0.95 | 1.00 | 1.00 | 0.040 | 0.030 | 16.0/18.0 | 0,75 | - | - |
| S44004 | 51440C | 440C | 0.95/1.20 | 1.00 | 1.00 | 0.040 | 0.030 | 16.0/18.0 | 0.75 | - | - |
| S44020 | 51440F | 440F | 0.95/1.20 | 1.00 | 1.25 | 0.060 | 0.15 min | 16.0/18.0 | 0.75 | 0.50 | Cu 0.60 |
| S44023 | 51440FSe | 440FSe | 0.95/1.20 | 1.00 | 1.25 | 0.060 | 0.060 | 16.0/18.0 | - | - | Se 0.15 min Cu 0.60 |
| S45000 | - | XM-25 Custom 450 | 0.05 | 1.00 | 1.00 | 0.030 | 0.030 | 14.00/16.00 | 0.50/1.00 | 5.00/7.00 | Cu 1.25/1.75; Nb 8xC min |
| S45500 | - | XM-16 Custom 455 | 0.05 | 0.50 | 0.50 | 0.040 | 0.030 | 11.00/12.50 | 0.50 | 7.50/9.50 | Cu 1.50/2.50; Nb 0.10/0.50 Ti 0.90/1.40 |
| S45503 | - | - | 0.010 | 0.20 | 0.50 | 0.010 | 0.010 | 11.00/12.50 | 0.50 | 7.50/9.50 | Cu 1.50/2.50; Ti 1.00/1.35 Nb 0.10/0.50 |
| S46500 | - | - | 0.02 | 0.25 | 0.25 | 0.015 | 0.010 | 11.00/12.50 | 0.75/1.25 | 10.75/11.25 | Ti 1.50/1.80 N 0.01 |
| S66286 | - | A286 | 0.08 | 1.00 | 2.00 | 0.040 | 0.030 | 13.50/16.00 | 1.00/1.50 | 24.0/27.0 | Al 0.35; B 0.0010/0.010; Ti 1.90/2.35; V 0.10/0.50 W 1.90/2.35 |
The data given is not intended to replace that shown in individual standards to which reference should always be made.