Material Standards & Certification
Complete cross-reference of European (EN), international (ASTM/ASME) and Russian (ГОСТ) stainless steel and nickel alloy grades, plus the applicable certification schemes: PED 2014/68/EU, CE Marking, EN 10204 and EAC.
Grade Equivalents: AISI/UNS ↔ EN Steel Number
The EN steel number (e.g. 1.4404) is the primary designation European and Spanish engineers use to identify the material.
| AISI | UNS | EN Steel Number | Type |
|---|---|---|---|
| 304L | S30403 | 1.4307 | Austenitic |
| 316L | S31603 | 1.4404 | Austenitic |
| 321 | S32100 | 1.4541 | Austenitic |
| 347 | S34700 | 1.4550 | Austenitic |
| 317L | S31703 | 1.4438 | Austenitic |
| 904L | N08904 | 1.4539 | Super Austenitic |
| 254 SMO | S31254 | 1.4547 | Super Austenitic |
| 2205 | S32205 | 1.4462 | Duplex |
| 2507 | S32750 | 1.4410 | Super Duplex |
| Zeron 100 / F55 | S32760 | 1.4501 | Super Duplex |
| 825 (Incoloy) | N08825 | 2.4858 | Nickel Alloy |
| 625 (Inconel) | N06625 | 2.4856 | Nickel Alloy |
| C-276 (Hastelloy) | N10276 | 2.4819 | Nickel Alloy |
| 400 (Monel) | N04400 | 2.4360 | Nickel Alloy |
PED 2014/68/EU Certification & CE Marking
Compliance with the Pressure Equipment Directive (PED) 2014/68/EU is mandatory for pressure equipment placed on the European market, including Spain. TOKO TECH supplies pipes, fittings and materials with CE Marking and EN 10204 certificates, ensuring the traceability and conformity required by the PED.
EN 10204 Material Inspection Certificates (3.1 / 3.2)
EN 10204 Material Inspection Certificates define product traceability. TOKO TECH issues the Type 3.1 Certificate (issued by the manufacturer after inspection) and, upon request, the Type 3.2 Certificate (with involvement of an independent body), covering chemical composition, mechanical properties, hydrostatic testing and NDE.
PED 2014/68/EU
EU Pressure Equipment Directive
CE Marking
Mandatory marking for the EU market
EN 10204 3.1 / 3.2
Material inspection certificates
For the CIS / EAEU market
Material Grade Comparison ГОСТ ↔ ASTM
| ГОСТ | UNS | ASTM / AISI | Type | Description |
|---|---|---|---|---|
| 08Х18Н10 | S30400 | 304 / UNS S30400 | Аустенитная / Austenitic | Универсальная коррозионностойкая сталь |
| 03Х18Н11 | S30403 | 304L / UNS S30403 | Аустенитная / Austenitic | Низкоуглеродистая, улучшенная свариваемость |
| 08Х17Н13М2Т | S31600 | 316 / UNS S31600 | Аустенитная / Austenitic | С молибденом, стойкость к хлоридам |
| 03Х17Н14М3 | S31603 | 316L / UNS S31603 | Аустенитная / Austenitic | Низкоуглеродистая с Mo, сварные конструкции |
| 12Х18Н10Т | S32100 | 321 / UNS S32100 | Аустенитная / Austenitic | Титаностабилизированная, до 900°C |
| 08Х18Н10Т | S32109 | 321H / UNS S32109 | Аустенитная / Austenitic | Низкоуглеродистая с Ti, повышенная прочность |
| 08Х18Н12Б | S34700 | 347 / UNS S34700 | Аустенитная / Austenitic | Ниобиевая стабилизация, до 925°C |
| 20Х23Н18 | S31008 | 310S / UNS S31008 | Аустенитная / Austenitic | Жаропрочная, окисление до 1150°C |
| 03Х18Н16М3 | S31703 | 317L / UNS S31703 | Аустенитная / Austenitic | Высокое содержание Mo, кислые среды |
| 06ХН28МДТ | N08904 | 904L / UNS N08904 | Аустенитная / Austenitic | Высоколегированная, серная кислота |
| — | S31254 | 254 SMO / UNS S31254 | Аустенитная / Austenitic | Сверхвысокое Mo, PREN ≥ 43 |
| 08Х22Н6Т | S31803 | 2205 / UNS S31803 | Дуплекс / Duplex | Двойная прочность 316L, SCC стойкость |
| — | S32750 | 2507 / UNS S32750 | Супердуплекс / Super Duplex | PREN ≥ 40, морская вода, H₂S |
| ХН75МБТЮ | N06625 | Inconel 625 / N06625 | Никелевый / Nickel | PREN > 45, до 980°C, подводные системы |
| ХН38ВТ | N08825 | Incoloy 825 / N08825 | Никелевый / Nickel | С добавкой Cu, серная кислота |
| ХН65МВ | N10276 | Hastelloy C-276 / N10276 | Никелевый / Nickel | Универсальная стойкость, влажный хлор |
| НМЖМц28-2.5-1.5 | N04400 | Monel 400 / N04400 | Никелевый / Nickel | Морская вода, HF кислота |
| ХН78Т | N06600 | Alloy 600 / N06600 | Никелевый / Nickel | Щелочная стойкость, PWR трубки |
| ХН32Т | N08810 | Alloy 800H / N08810 | Никелевый / Nickel | Ползучесть, печи нефтехимии |
| ХН45МВТЮБР | N07718 | Alloy 718 / N07718 | Никелевый / Nickel | Дисперсионное твердение, 1034-1241 МПа |
GOST Pipe Product Standards
| Product | ГОСТ | ASTM / ASME |
|---|---|---|
| Бесшовные Трубы / Seamless Pipe | ГОСТ 9940-81 / ГОСТ 9941-81 | ASTM A312 / A269 |
| Сварные Трубы / Welded Pipe | ГОСТ 11068-81 | ASTM A358 / A778 |
| Отводы / Elbows | ГОСТ 17375-2001 | ASME B16.9 |
| Тройники / Tees | ГОСТ 17376-2001 | ASME B16.9 |
| Переходы / Reducers | ГОСТ 17378-2001 | ASME B16.9 |
| Фланцы / Flanges | ГОСТ 33259-2015 | ASME B16.5 / B16.47 |
| Капиллярные Трубки / Capillary Tube | ГОСТ 14162-79 | ASTM A213 |
EAC (EAEU) & GOST R Certification
Deliveries to Russia, Belarus, Kazakhstan, Armenia, and Kyrgyzstan require Eurasian Conformity (EAC) certification. TOKO TECH provides complete documentation packages for customs clearance and equipment commissioning within the EAEU.
EAC Declaration
Mandatory certification for all pipes and fittings supplied to the EAEU
GOST R
Voluntary certification confirming compliance with Russian standards
TR CU 032/2013
Technical Regulation of the Customs Union on pressure equipment safety
Available upon request: Quality certificates (Product Passport), Test reports (chemical composition, mechanical properties, hydrostatic testing, NDE), Certificates of origin, EAC conformity declarations.
Pipe Size Chart DN ↔ NPS
| DN (ГОСТ) | NPS (ASTM) | Outside Diameter / OD |
|---|---|---|
| DN 6 | 1/8" | 10.3 mm |
| DN 8 | 1/4" | 13.7 mm |
| DN 10 | 3/8" | 17.1 mm |
| DN 15 | 1/2" | 21.3 mm |
| DN 20 | 3/4" | 26.7 mm |
| DN 25 | 1" | 33.4 mm |
| DN 40 | 1½" | 48.3 mm |
| DN 50 | 2" | 60.3 mm |
| DN 80 | 3" | 88.9 mm |
| DN 100 | 4" | 114.3 mm |
| DN 150 | 6" | 168.3 mm |
| DN 200 | 8" | 219.1 mm |
| DN 300 | 12" | 323.9 mm |
| DN 400 | 16" | 406.4 mm |
| DN 600 | 24" | 609.6 mm |
Need Certification (PED, EN 10204, GOST R or EAC)?
Send us your inquiry specifying the required standards — we will prepare a commercial offer with a complete certification documentation package.
Request Quote with Certification