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모형: GB/T20409
상표: 토리치
포장: 항해상의 포장이 가능한 번들
생산력: 20000 Tons per Year
수송: Ocean,Land,Air
원산지: 절강, 중국 (본토)
지원에 대한 지원: 60000 Ton per year
인증 : ISO9001:2008 ISO14001:2008, TS16949, CE PED, TUV, API
HS 코드: 7306110000
포트: Shanghai,N
지불 유형: L/C,T/T,D/P,Paypal,Money Gram,Western Union
인 코텀: FOB,CFR,CIF,FCA,CPT
중국에서 원활한 보일러 스틸 튜브의 선도적 인 제조 업체, 고품질의 철강 열 교환기 튜브, 원활한 탄소 보일러 튜브, 합금강 보일러 튜브를 제공합니다
원활한 보일러 강철 튜브는 냉간 신선 처리,
저탄소 강, 중간 탄소강, 합금강 등의 강종
기술 표준
ASTM A179, ASTM A192, ASTM A210, ASTM A213, ASTM A334, ASTM A335 등
DIN17175, EN10216-2, GB / T 5310, BS3059 등
스틸 그레이드 :
탄소강 등급 :
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;
탄소강 튜브 : SA178, A179, A192, A210, SA213, SA214 등
합금강 등급 :
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;
제품 이름 : TORICH GB / T20409 20G 20MnG 25MnG SA210 SA213 다목적 고압 보일러 매끄러운 강철 튜브
표준 : GB / T20409
외경 : 3-420mm
WT : 0.5 ~ 50mm
길이 : 8-12m 또는 고객의 실제 응용 및 생산에 따라.
응용 분야 : 고압 보일러
철강 학년 : 20G 20MnG 25MnG SA210 SA213
기술 : 열간 압연, 냉간 압연, 냉간 압연
특성:
좋은 동심원
좋은 표면 품질
OD 및 ID 허용 오차가 우수함
높은 정밀도
안정된 품질
부드러운 거칠기
토익 품질 보증
표 6 실온에서 내부 스크류 튜브의 종 방향 기계적 특성
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 |
표 4 강재의 종류 및 화학 성분
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%. |
내부 나사 튜브의 크기 및 나사 매개 변수의 허용 편차
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. |
제품 디렉토리 : 원활한 보일러 강관
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