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Standardele de aplicare obișnuite pentru tuburi de aliaj:
GB / T8162-2008 --- Standardul Național din China
GB / T8163-2008 --- Standardul Național din China
GB / T6479-2000 --- Standardul național din China
GB / T9948-2006 --- Standardul Național din China
GB5310-2008 - Standardul Național din China
ASME SA210 – Specificația americană pentru cazane și recipiente de presiune
ASME SA213 – Specificația americană pentru cazane și recipiente de presiune
DIN17175 -Germania FederalăStandarde industriale
Toleranța dimensiunii tubului de aliaj:
| Tipuri de țeavă din oțel | Diametrul exterior (D) | Grosimea peretelui (S) | ||
| Tevi de oțel fără sudură retrase la rece | Diametrul exterior al țevei din oțel (mm) | Permisiune de abatere (mm) | Grosimea peretelui de țeavă din oțel (mm) | Permisiune de abatere (mm) |
| >30～50 | ±0.3 | >3～20 | ±10% |
Proprietăți mecanice ale tuburilor din aliaj:
| standard | Numărul de marcă | Rezistență la tracțiune (MPa) | Rezistență la cedare (MPa) | Elongare (%) | Duritatea |
| GB3087 | 10 | 335～475 | ≥195 | ≥24 | / |
| 20 | 410～550 | ≥245 | ≥20 | / | |
| GB5310 | 20G | 410～550 | ≥245 | ≥24 | / |
| 20MnG | ≥415 | ≥240 | ≥22 | / | |
| 25MnG | ≥485 | ≥275 | ≥20 | / | |
| 15CrMoG | 440～640 | ≥235 | ≥21 | / | |
| 12Cr2MoG | 450～600 | ≥280 | ≥20 | / | |
| 12Cr1MoVG | 470～640 | ≥255 | ≥21 | / | |
| 12Cr2MoWVTiB | 540～735 | ≥345 | ≥18 | / | |
| 10Cr9Mo1VNb | ≥585 | ≥415 | ≥20 | / | |
| ASME SA210 | SA210A-1 | ≥415 | ≥255 | ≥30 | ≤143HB |
| SA210C | ≥485 | ≥275 | ≥30 | ≤179HB | |
| ASME SA213 | SA213 T11 | ≥415 | ≥205 | ≥30 | ≤163HB |
| SA213 T12 | ≥415 | ≥220 | ≥30 | ≤163HB | |
| SA213 T22 | ≥415 | ≥205 | ≥30 | ≤163HB | |
| SA213 T23 | ≥510 | ≥400 | ≥20 | ≤220HB | |
| SA213 T91 | ≥585 | ≥415 | ≥20 | ≤250HB | |
| SA213 T92 | ≥620 | ≥440 | ≥20 | ≤250HB | |
| DIN17175 | ST45.8/Ⅲ | 410～530 | ≥255 | ≥21 | / |
| 15Mo3 | 450～600 | ≥270 | ≥22 | / | |
| 13CrMo44 | 440～590 | ≥290 | ≥22 | / | |
| 10CrMo910 | 480～630 | ≥280 | ≥20 | / |
Compoziția chimică a tubului de aliaj:
| standard | Numărul de marcă | Compoziția chimică (%) | ||||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | Al | W | Ti | Nb | N | ||
| GB3087 | 10 | 0.07～0.13 | 0.17～0.37 | 0.38～0.65 | ≤0.030 | ≤0.030 | 0.3～0.65 | / | ≤0.25 | ≤0.30 | / | / | | | | |
| 20 | 0.17～0.23 | 0.17～0.37 | 0.38～0.65 | ≤0.030 | ≤0.030 | 0.3～0.65 | / | ≤0.25 | ≤0.30 | / | / | | | | | |
| GB5310 | 20G | 0.17～0.24 | 0.17～0.37 | 0.35～0.65 | ≤0.030 | ≤0.030 | ≤0.25 | ≤0.15 | ≤0.20 | ≤0.25 | ≤0.08 | | | | | |
| 20MnG | 0.17～0.24 | 0.17～0.37 | 0.70～1.00 | ≤0.030 | ≤0.030 | ≤0.25 | ≤0.15 | ≤0.20 | ≤0.25 | ≤0.08 | | | | | | |
| 25MnG | 0.18～0.24 | 0.17～0.37 | 0.80～1.10 | ≤0.030 | ≤0.030 | ≤0.25 | ≤0.15 | ≤0.20 | ≤0.25 | ≤0.08 | | | | | | |
| 15CrMo | 0.12～0.18 | 0.17～0.37 | 0.40～0.70 | ≤0.030 | ≤0.030 | 0.80～1.10 | 0.40～0.55 | ≤0.20 | ≤0.30 | | | | | | | |
| 12Cr2MoG | 0.08～0.15 | ≤0.50 | 0.40～0.70 | ≤0.030 | ≤0.030 | 2.00～2.50 | 0.90～1.20 | ≤0.20 | ≤0.30 | | | | | | | |
| 12Cr1MoV | 0.08～0.15 | 0.17～0.37 | 0.40～0.70 | ≤0.030 | ≤0.030 | 0.90～1.20 | 0.25～0.35 | ≤0.20 | ≤0.30 | 0.15～0.30 | | | | | | |
| 12Cr2MoWVTiB | 0.08～0.15 | 0.45～0.75 | 0.45～0.65 | ≤0.030 | ≤0.030 | 1.60～2.10 | 0.50～0.65 | ≤0.20 | ≤0.30 | 0.28～0.42 | | 0.30～0.55 | 0.08～0.15 | B 0.002～0.008 | | |
| 10Cr9Mo1VNb | 0.08～0.12 | 0.20～0.50 | 0.30～0.60 | ≤0.020 | ≤0.010 | 8.00～9.50 | 0.85～1.05 | ≤0.20 | ≤0.40 | 0.18～0.25 | ≤0.015 | | | 0.06～0.10 | 0.03～0.07 | |
| ASME SA210 | SA210A-1 | 0.13～0.19 | ≥0.1 | 0.45～0.65 | ≤0.030 | ≤0.030 | | | | | | | | | | |
| SA210C | 0.18～0.24 | ≥0.1 | 0.80～1.10 | ≤0.030 | ≤0.030 | | | | | | | | | | | |
| ASME SA213 | SA213 T11 | 0.05～0.15 | 0.50～1.0 | 0.30～0.60 | ≤0.030 | ≤0.030 | 1.00～1.50 | 0.50～1.00 | | | | | | | | |
| SA213 T12 | 0.05～0.15 | ≤0.50 | 0.30～0.61 | ≤0.030 | ≤0.030 | 0.80～1.25 | 0.44～0.65 | | | | | | | | | |
| SA213 T22 | 0.05～0.15 | ≤0.50 | 0.30～0.60 | ≤0.030 | ≤0.010 | 1.90～2.60 | 0.87～1.13 | | | | | | | | | |
| SA213 T23 | 0.04～0.10 | ≤0.50 | 0.10～0.60 | ≤0.030 | ≤0.030 | 1.90～2.60 | 0.05～0.30 | | | | ≤0.030 | 1.45～1.75 | B 0.0005～0.006 | 0.02～0.08 | ≤0.040 | |
| SA213 T91 | 0.08～0.12 | 0.20～0.50 | 0.30～0.60 | ≤0.020 | ≤0.010 | 8.00～9.50 | 0.85～1.05 | | ≤0.40 | 0.18～0.25 | ≤0.015 | | | 0.06～0.10 | 0.03～0.07 | |
| SA213 T92 | 0.07～0.13 | ≤0.50 | 0.30～0.60 | ≤0.020 | ≤0.010 | 8.50～9.50 | 0.30～0.60 | | ≤0.40 | 0.15～0.25 | ≤0.015 | 1.50～2.00 | B 0.001～0.006 | 0.04～0.09 | 0.03～0.07 | |
| DIN 17175 | ST45.8/Ⅲ | ≤0.21 | 0.10～0.35 | 0.40～1.20 | ≤0.040 | ≤0.040 | | | | | | | | | | |
| 15Mo3 | 0.12～0.20 | 0.10～0.35 | 0.40～0.80 | ≤0.035 | ≤0.035 | | 0.25～0.35 | | | | | | | | | |
| 13CrMo44 | 0.10～0.18 | 0.10～0.35 | 0.40～0.70 | ≤0.035 | ≤0.035 | 0.70～1.10 | 0.45～0.65 | | | | | | | | | |
| 10CrMo910 | 0.08～0.15 | ≤0.50 | 0.30～0.70 | ≤0.025 | ≤0.020 | 2.00～2.50 | 0.90～1.10 | ≤0.30 | ≤0.30 | | ≤0.015 | | |
(Diametrul exterior - grosimea peretelui) * grosimea peretelui * 0,02466 = greutatea pe metru.
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