GRADES
| Comparative Guide to Steel Grade Designations Worldwide | |||||
| EN | ASTM | JIS Japan | GB/PR China | KS Korea | GOST Russia |
| 1.4000 | 410S | SUS410S | OCr13 | STS410S | 08x13 |
| 1.4016 | 430 | SUS 430 | 1CR17 | STS 430 | 12x17 |
| 1.4509 | S43035(439) | SUS430LX | 00Cr17 | STS430LX | 08x17T |
| 1.4510 | 430Ti | ||||
| 1.4511 | 430Nb | ||||
| 1.4113 | 434 | ||||
| 1.4512 | 409L | 02x13 | |||
| 1.4021 | S42010(420L) | SUS420J1 | 2Cr13 | STS 420J1 | 20x13 |
| 1.4028 | 420 | SUS420J2 | 3Cr13 | STS 420J2 | 30x13 |
| 1.4116 | 420MoV | ||||
| 1.4006 | 410 | SUS 410 | |||
| 1.4310 | 301 | SUS 301 | 1Cr17Ni7 | STS 301 | 07x16n6 |
| 1.4305 | 303 | SUS 303 | Y1Cr18Ni9 | 12x18n10e | |
| 1.4301 | 304 | SUS 304 | OCr18Ni9 | STS 304 | 08x18H10 |
| 1.4307 | 304L | SUS 304L | 00Cr19Ni10 | STS 304I | 03x18n11 |
| 1.4311 | 304LN | SUS 304LN | 00Cr18Ni10N | STS 304LN | |
| 1.4948 | 304H | SUS 304 | OCr18Ni9 | STS 304 | 08x18H10 |
| 1.4303 | 305 | SUS 305J1 | 1Cr18Ni12 | STS 305 | 06x18n11 |
| 1.4316 | 308L | ||||
| 1.4833 | 309S | SUH 309 | 0Cr23Ni13 | STS 309S | 20x23H13 |
| 1.4845 | 310S | SUH 310S | 0Cr25Ni20 | STS310S | 10x23n18 |
| 1.4401 | 316 | SUS 316 | OCr17Ni12Mn2 | STS316 | |
| 1.4404 | 316L | SUS 316L | 00Cr17Ni14Mo2 | STS 316l | 03x17n14M3 |
| 1.4571 | 316Ti | SUS 316Ti | OCr18Ni12Mo2Ti | STS316Ti | 08x17n13M2t |
| 1.4406 | 316LN | SUS 316LN | 00Cr17Ni13Mo2N | STS316LN | |
| 1.4438 | 317L | SUS 317L | 00Cr19Ni13Mo3 | STS317L | |
| 1.4434 | 317LN | SUS 317LN | STS317LN | ||
| 1.4841 | 314 | 20X25H20C2 | |||
| 1.4541 | 321 | SUS 321 | OCr18Ni10Ti | STS 321 | 08x18n10t |
| 1.4878 | 321H | SUS 321 | 1Cr18ni9Ti | STS 321 | 08x18n10t |
| 1.4539 | 904L | 06XH28MAT | |||
FINISHES
| Designation According to EN 10088 | AISI Designation | Designation According to GOST 5572-85 | Finishing | Surface condition | Note |
| 1U | 1 | Hot-Rolled, Without Heat Treatment or Scale Removal | with scale, matte | For products requiring further processing, such as a training strip | |
| 1C | Hot-Rolled, Heat-Treated, without Scale Removal | with scale | For machined parts or applications in high-temperature environments | ||
| 1E | Hot-Rolled, Heat-Treated, and Mechanically Descaled | without scale | Type of mechanical scale removal: rough grinding or shot blasting, depending on the steel type and product shape | ||
| 1D | M2B, M3B, M4B | Hot-Rolled, Heat-Treated, and Pickled | scale free, matte | Common standard for many steel grades, offering corrosion resistance and consistent performance for further processing. Less smooth than 2B and 2D finishes. | |
| 1Q | Hot-Rolled, Hardened, and Pickled | without scale | Steel resistant to mechanical impacts | ||
| 2H | TR | Cold-Rolled and Hardened | Shiny (not mirror) | Cold-formed to increase strength | |
| 2C | Cold-Rolled, Heat-Treated, without Scale Removal | smooth, with scale after heat treatment | For parts requiring additional scale removal and mechanical treatment, or for use in high-temperature environments | ||
| 2D | 2D | M2A, M3A, M4A | Cold-Rolled, Heat-Treated, and Pickled | smooth | Improved ductility but less smooth than 2B or 2R |
| 2B | 2B | Cold-Rolled, Heat-Treated, Pickled, and Tempered Cold-Rolled with Annealing and Pickling, with Finishing Rolling | smoother than 2D, matte | To improve corrosion resistance, surface quality, and flatness in various types of steel, suitable for further processing. Tempering can be achieved through stretching. Very smooth surface, with rolling marks or small scratches allowed, which are not considered defects | |
| 2R | VA | Cold-Rolled, Bright Annealed | smooth, light, with reflection | Smoother and lighter than 2B. Suitable for further processing | |
| 2G | No.3 | Cold-Rolled, Annealed, Pickled, and Ground with Grain Size from 100 to 120 G | poly (no.3) | ||
| 2G | No.4 | Cold-Rolled, Annealed, Pickled, and Ground with Grain Size from 150 to 180 G | poly (no.4) | ||
| 2G | No.5 | poly (no.5) | |||
| 2G | No.6 | poly (no.6) | |||
| 2E | Cold-Rolled, Heat-Treated with Mechanically Removed Scale, and Pickled | silvery matte or shiny | Scale has been removed and surface quality has been improved | ||
| 2M | With a Picture (on One Side) | ||||
| 2W | Corrugated | ||||
| VA | Cold-Rolled with Annealing and Pickling in a Vertical Furnace Using Caustic Ammonia | mirror | The surface of the metal is very smooth, with a reflection that is visible but not clear | ||
| 3N,4N | Cold-Rolled with Annealing, Pickling, and Abrasive Treatment | polished | The surface of the metal is very smooth, not reflective, but shimmers with rainbow-like colors | ||
| DECO | Cold-Rolled with Knurling of the Pattern | decorated | Textured stainless steel features a clearly defined pattern | ||
| Tear Plate | Hot-Rolled with Knurling | corrugated |