Çin'de Dikişsiz Kazan Çelik Borular lider üreticisi, yüksek kaliteli Çelik Eşanjör Boruları, Dikişsiz Karbon Kazan Boru, Alaşımlı Çelik Kazan Boru sunmaktadır
Dikişsiz Kazan Çelik Borular Soğuk Çekilmiş Dikişsiz İşleme ile üretilir,
Düşük Karbonlu Çelik, Orta Karbon Çelik, Alaşımlı Çelik vb.
Teknik Standartlar
ASTM A179, ASTM A192, ASTM A210, ASTM A213, ASTM A334, ASTM A335 vb
DIN17175, EN10216-2, GB / T 5310, BS3059, vb.
Çelik sınıf:
Karbon çelik notu:
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;
Karbon çelik boru: SA178, A179, A192, A210, SA213, SA214, vb.
Alaşımlı Çelik Sınıfı:
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;
Ürün Adı : TORICH GB / T20409 20G 20MnG 25MnG SA210 SA213 Çok tırtıklı Yüksek basınçlı Kazan Dikişsiz Çelik Borular
Standart : GB / T20409
OD: 3-420mm
WT: 0.5-50mm
Uzunluk : 8-12m veya müşterilerin gerçek uygulama ve üretim göre.
Uygulama : Yüksek basınçlı kazan
Çelik Sınıfı : 20G 20MnG 25MnG SA210 SA213
Teknoloji : Sıcak haddelenmiş, soğuk haddelenmiş, soğuk çekilmiş
Karakteristik:
Iyi konsantriklik
Iyi yüzey kalitesi
İyi OD ve ID toleransı
Yüksek hassasiyet
Istikrarlı kalite
Pürüzsüz Pürüzlülük
TORICH KALİTE GÜVENCE
Table6 İç vida borularının oda sıcaklığında boyuna mekanik özellikleri
|
Number
|
Grade
|
tensile strength
RM
MPa(N/mm2 )
|
Lower yield strength
ReL /MPa((N/mm2)
|
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
|
Tablo 4 Çelik kalitesi ve kimyasal bileşimi
|
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%.
|
İç vidalı boruların boyutu ve iplik parametrelerinin izin verilen sapması
|
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.
|
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