NB/T 47008 — Carbon and low-alloy steel forgings for pressure equipment
NB/T 47008 covers carbon and low-alloy steel forgings for pressure equipment, such as 20, 16Mn, 15CrMo, 12Cr2Mo1 and 1Cr5Mo — the Chinese counterpart of ASTM A105 and A182 Cr-Mo grades.
NB/T 47008 at a glance
| Standard | NB/T 47008 |
|---|---|
| Issued by | China (NEA) |
| Product form | Forgings |
| Grades on this site | 6 |
NB/T 47008 grades and their ASTM equivalents
| NB/T designation | Nearest ASTM / ASME grades | UNS | W.Nr |
|---|---|---|---|
| 20 / 16Mn (NB/T 47008) | ASTM A105 | K03504 | 1.0460 |
| 15CrMoG (GB/T 5310) / 15CrMoR (GB/T 713.2) | ASTM A182 F12 Cl.2, ASTM A335 P12, ASTM A182 F12 Cl.1, ASTM A234 WP12 Cl.1 | K11564 | 1.7335 |
| 15CrMoG (GB/T 5310) / 14Cr1MoR (GB/T 713.2) | ASTM A182 F11 Cl.2, ASTM A234 WP11 Cl.1, ASTM A335 P11, ASTM A182 F11 Cl.1, ASTM A182 F11 Cl.3, ASTM A234 WP11 Cl.2 | K11572 | 1.7335 |
| 12Cr2MoG (GB/T 5310) | ASTM A182 F22 Cl.3, ASTM A234 WP22 Cl.1, ASTM A335 P22, ASTM A182 F22 Cl.1, ASTM A234 WP22 Cl.3 | K21590 | 1.7380 |
| 12Cr5MoI (GB/T 9948) / 1Cr5Mo | ASTM A182 F5, ASTM A234 WP5 Cl.1, ASTM A335 P5, ASTM A182 F5a | K41545 | 1.7362 |
| 12Cr9MoI (GB/T 9948) / 1Cr9Mo1 | ASTM A182 F9, ASTM A234 WP9 Cl.1, ASTM A335 P9 | K90941 | 1.7386 |
Equivalents are the nearest commonly cited grades. Chemistry, mechanical properties and testing differ between standards — compare them before substituting one for another.
FAQ
NB/T 47008: common questions
What is the ASTM equivalent of NB/T 47008 20 / 16Mn?
The nearest ASTM grades are ASTM A105.
Does Teshi Group supply material to NB/T 47008?
Teshi Group manufactures flanges, fittings, fasteners and valves, and supplies pipes and plates, to ASTM / ASME specifications and to equivalent EN, JIS, GB and IS standards on request, with EN 10204 3.1 certificates. Send your requirement to info@teshigroup.com.
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