Merknaam: | TORICH |
Modelnummer: | GB/T9948 |
MOQ: | 3Ton |
Prijs: | 800-1200USD/TON |
Betalingsvoorwaarden: | Bevestigingsbrief, D/A, D/P, T/T, Western Union, MoneyGram |
Toeleveringsvermogen: | 30000Tons/year |
TORICH GB/T9948 12CrMo naadloze stalen buizen voor het kraken van petroleum
Tabel 1: Toleranties van buitendiameter en wanddikte Eenheid: mm
Sortcode | Vervaardigingsmethode | Nominale omvang | Toleranties | ||
Gemeenschappelijk niveau | Hoog niveau | ||||
W-H | Warmwalsen (extrusie) | Buitendeursdiameter D | ≤ 54 | ±0.50 | ±0.30 |
> 54 tot en met 325 | ± 1%D | ± 0,75%D | |||
> 325 | ± 1%D | - | |||
Wanddikte S | ≤ 20 | +15%S -10%S | ±10%S | ||
> 20 | + 12,5%S -10%S | ±10%S | |||
Warm uitbreiden | Buitendeursdiameter D | Alle | ± 1%D | ||
Wanddikte S | Alle | ±15%S | |||
W-C | Koud getrokken ((Rolling)) | Buitendeursdiameter D | ≤ 25.4 | ±0.15 | |
> 25,4 ~ 40 | ±0.20 | ||||
> 40 tot 50 | ±0.25 | ||||
> 50 tot 60 | ±0.30 | ||||
> 60 | ± 0,75%D | ± 0,5%D | |||
Wanddikte S | ≤ 3.0 | ±0.3 | ±0.2 | ||
> 3.0 | ±10%S | ±7,5%S |
Tabel 2: Tolerantie van de minimumwanddikte: mm
Sortcode | Vervaardigingsmethode | Minimale wanddikte Smin | Tolerantie | |
Gemeenschappelijk niveau | Hoog niveau | |||
W-H | Warmwalsen (extrusie) | ≤ 4.0 | +0.90 0 | +0.70 0 |
> 4.0 | +25%Smin 0 | +22%Smin 0 | ||
W-C | Koud getrokken ((Rolling)) | ≤ 3.0 | +0.6 0 | +0.4 0 |
> 3.0 | +20%Smin 0 | +15%Smin 0 |
Tabel 3 Staalkwaliteit en chemische samenstelling
staal | Chemische samenstelling % | |||||||||||
C | - Jawel. | Deeltjes | Cr | Mo. | Ni | Nb | Ti | V | C. | P | S | |
≤ | ||||||||||||
10 | 0.07~ 0.13 | 0.17 ~ 0.37 | 0.35 ~ 0.65 | ≤ 0.15 | ≤ 0.15 | ≤ 0.25 | — | — | ≤ 0.08 | ≤ 0.20 | 0.025 | 0.015 |
20 | 0.17 ~ 0.23 | 0.17 ~ 0.37 | 0.35 ~ 0.65 | ≤ 0.25 | ≤ 0.15 | ≤ 0.25 | — | — | ≤ 0.08 | ≤ 0.20 | 0.025 | 0.015 |
12CrMo | 0.08~ 0.15 | 0.17 ~ 0.37 | 0.40 ~ 0.70 | 0.40 ~ 0.70 | 0.40 ~ 0.55 | ≤ 0.30 | — | — | — | ≤ 0.20 | 0.025 | 0.015 |
15CrMo | 0.12 ~ 0.018 | 0.17 ~ 0.37 | 0.40 ~ 0.70 | 0.80 ~ 1.10 | 0.40 ~ 0.55 | ≤ 0.30 | — | — | — | ≤ 0.20 | 0.025 | 0.015 |
12CrMo | 0.08~ 0.15 | 0.50 ~ 1.00 | 0.30 ~ 0.60 | 1.00~ 1.50 | 0.45 ~ 0.65 | ≤ 0.30 | — | — | — | ≤ 0.20 | 0.025 | 0.015 |
12CrlMoV | 0.08~ 0.15 | 0.17 ~ 0.37 | 0.40 ~ 0.70 | 0.90 ~ 1.20 | 0.25 ~ 0.35 | ≤ 0.30 | — | — | 0.15 ~ 0.30 | ≤ 0.20 | 0.025 | 0.015 |
12Cr2Mo | 0.08~ 0.15 | ≤ 0.50 | 0.40 ~ 0.60 | 2.00~ 2.50 | 0.90 ~ 1.13 | ≤ 0.30 | — | — | — | ≤ 0.20 | 0.025 | 0.015 |
12Cr5MoI 12Cr5MoNT | ≤ 0.15 | ≤ 0.50 | 0.30 ~ 0.60 | 4.00~ 6.00 | 0.45 ~ 0.60 | ≤ 0.60 | — | — | — | ≤ 0.20 | 0.025 | 0.015 |
12Cr9MoI 12Cr9MoNT | ≤ 0.15 | 0.25 ~ 1.00 | 0.30 ~ 0.60 | 8.00~ 10.00 | 0.90 ~ 1.10 | ≤ 0.60 | — | — | — | ≤ 0.20 | 0.025 | 0.015 |
07Cr19Ni10 | 0.04 ~ 0.10 | ≤ 1.00 | ≤ 2.00 | 18.00~ 20.00 | — | 8.00~ 11.00 | — | — | — | — | 0.030 | 0.015 |
07Cr18Ni11Nb | 0.04 ~ 0.10 | ≤ 1.00 | ≤ 2.00 | 17.00~ 19.00 | — | 9.00~ 12.00 | 8C~ 1.10 | — | — | — | 0.030 | 0.015 |
07Cr19Ni11NTi | 0.04 ~ 0.10 | ≤ 0.75 | ≤ 2.00 | 17.00~ 20.00 | — | 9.00~ 13.00 | — | 4C~ 0.60 | — | — | 0.030 | 0.015 |
022Cr17Ni12Mo2 | ≤ 0.30 | ≤ 1.00 | ≤ 2.00 | 16.00~ 18.00 | 2.00~ 3.00 | 10.00~ 14.00 | — | — | — | — | 0.030 | 0.015 |