Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Model No: GB/T20409
Marka: Torich
Packaging: W pakietach z pakietem do żeglugi morskiej
wydajność: 20000 Tons per Year
transport: Ocean,Land,Air
Place of Pochodzenia: Zhejiang, Chiny (kontynent)
Wsparcie: 60000 Ton per year
Certyfikat: ISO9001:2008 ISO14001:2008, TS16949, CE PED, TUV, API
Código HS: 7306110000
Porta: Shanghai,N
Rodzaj płatności: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
Wiodący producent stalowych rur bez szwu w Chinach, oferuje wysokiej jakości stalowe wymienniki ciepła, bezszwowe rury węglowe, stalowe rury ze stopu
Rury stalowe bez szwu produkowane są metodą ciągnienia na zimno bez szwu,
z gatunkiem stali niskowęglowej, stali średniowęglowej, stopowej itp.
Standardy techniczne jak
ASTM A179, ASTM A192, ASTM A210, ASTM A213, ASTM A334, ASTM A335 itd.
DIN17175, EN10216-2, GB / T 5310, BS3059 itd.
Klasa stali:
Klasa stali węglowej:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Rura ze stali węglowej: SA178, A179, A192, A210, SA213, SA214 itd.
Stop aluminium:
T2, T5, T9, T11, T12, T17, T21, T22, T91, T92, 15Mo3,16Mo3, 13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn, 12Cr1MoVG;
Nazwa produktu : TORICH GB / T20409 20G 20MNG 25MnG SA210 SA213 Wielokrotnego użytku Rury ze stali nierdzewnej bez wysokociśnieniowych kotłów
Standard : GB / T20409
OD: 3-420 mm
WT: 0,5-50 mm
Długość : 8-12 m lub według faktycznego zastosowania i produkcji klienta.
Zastosowanie : Kocioł wysokociśnieniowy
Klasa stali : 20G 20MnG 25MnG SA210 SA213
Technologia : Walcowane na gorąco, walcowane na zimno, ciągnione na zimno
Charakterystyka:
Dobra koncentryczność
Dobra jakość powierzchni
Dobra tolerancja na OD i ID
Wysoka precyzja
Stabilna jakość
Gładka szorstkość
ZAPEWNIENIE JAKOŚCI TORICH
Tabela 6 Wzdłużne właściwości mechaniczne wewnętrznych rurek śrubowych w temperaturze pokojowej
Number |
Grade |
tensile strength RM MPa(N/mm2) |
Lower yield strength |
Elongation A/% |
Impact energy AKV/J |
Not less than |
|||||
1 |
20G |
410~550 |
245 |
24 |
35 |
2 |
20MnG |
≥415 |
240 |
22 |
35 |
3 |
25MnG |
≥485 |
275 |
20 |
35 |
4 |
12CrMoG |
410~560 |
205 |
21 |
35 |
5 |
15CrMoG |
440~640 |
235 |
21 |
35 |
Tabela 4 Gatunek i skład chemiczny stali
Number |
Brand |
chemical composition(mass fraction)/ % |
||||||
C |
Mn |
Si |
Cr |
Mo |
S |
P |
||
1 |
20G |
0.17~0.23 |
0.35~0.65 |
0.17~0.37 |
-- |
-- |
≤0.020 |
≤0.025 |
2 |
20MnG |
0.17~0.23 |
0.70~1.00 |
0.17~0.37 |
-- |
-- |
≤0.020 |
≤0.025 |
3 |
25MnG |
0.22~0.29 |
0.7~1.00 |
0.17~0.37 |
-- |
-- |
≤0.020 |
≤0.025 |
4 |
12CrMoG |
0.08~0.15 |
0.40~0.70 |
0.17~0.37 |
0.40~0.70 |
0.40~0.55 |
≤0.020 |
≤0.025 |
5 |
15CrMoG |
0.12~0.18 |
0.40~0.70 |
0.17~0.37 |
0.80~1.10 |
0.40~0.55 |
≤0.020 |
≤0.025 |
Note1:Residual element content of 20G.20MnG.25MnG should satisfy: Cu≤0.20%.Cr≤0.25%.Ni≤0.25%.V≤0.08%.Mo≤0.15%;The remaining elements of other brands should satisfy: Cu≤0.20%.Ni≤0.30%. Note2:The acid soluble aluminum in 20G steel should not be more than 0.010%. Note3:The nitrogen content of the steel produced by the oxygen converter plus the refining of the furnace should not be more than 0.008%. |
Rozmiar wewnętrznych rurek śrubowych i dopuszczalne odchylenie parametrów nici
Code |
Project |
[A" teeth types allowable deviation |
[B" teeth types allowable deviation |
A |
O.D≤38.1mm 38.1mm<O.D<50.8mm 50.8mm≤O.D≤63.5mm O.D≥63.5mm |
±0.15mm ±0.20mm ±0.25mm ±0.30mm |
-- |
B |
O.D≤38.1mm 38.1mm<O.D<50.8mm 50.8mm≤O.D≤63.5mm O.D≥63.5mm |
-- |
±0.15mm ±0.20mm ±0.25mm ±0.30mm |
C |
I.D of the root of the screw Thread: O.D-(1.11×Minimum W.T×2) O.D≤38.1mm 38.1mm<O.D<50.8mm 50.8mm≤O.D≤63.5mm O.D≥63.5mm |
±0.15mm ±0.20mm ±0.25mm ±0.30mm |
±0.15mm ±0.20mm ±0.25mm ±0.30mm |
E |
Minimum I.D |
Negative deviation to zero |
Negative deviation to zero |
F |
Minimum W.T |
+22% 0 |
+22% 0 |
G |
Thread tips |
-- |
-- |
I |
Thread top width |
-- |
-- |
Ja |
Height of thread: O.D≤38.1mm 38.1mm<O.D<50.8mm 50.8mm≤O.D≤63.5mm O.D≥63.5mm |
±0.3mm |
±0.18mm ±0.20mm ±0.23mm ±0.28mm |
K |
Side Angle of thread. |
±15° |
±15° |
O |
radius of rounded corner at the root of thread |
-- |
-- |
M |
Thread pitch |
±3.2mm |
±3.2mm |
N |
Thread lead |
±3.2mm×thread tips |
±3.2mm×thread tips |
Qb |
Helix angle |
Rating |
Rating |
T |
Thread top width (axial) |
±1.3mm |
±1.3mm |
U |
Thread top (axial) groove width |
-- |
-- |
a. For the B type, the maximum deviation of any thread height can exceed the allowable deviation specified in the table, but it should not exceed the allowable deviation of 0.08mm, and the average height of all threads should be in line with the given deviation range. b. The rating is based on the axis of the pipe. |
Kategorie o produkcie : Rury stalowe bezszwowe kotłowe
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.