Dellok HFW Carbon seamless steel Pipe seamless Steel Tube
About Us
Dellok(YONGHUI Radiating Pipe Manufacturing Co.,Ltd) was established in 2002, which is located in Nanjing, China.We joined HARBIN AIR CONDITIONING CO., LTD. in 2022 and became the most professional industry manufacturer in China. After many years of development, the company now has 66 million yuan in fixed assets, more than 200 employees, and 33 technical staffs. We have 4 aluminum processing production lines, with the annual processing capacity of more than 20,000 tons; And we have 5 tube-drawing production lines; 47 fintube production lines, 1 imported production line from American with the brand of McElroy , with the annual production capacity of 12 million meters the above.
-Production workshop-
Meticulous works, standardized management system and systematic quality assurance are Dellok(YONGHUI)'s best commitment to quality. In Dellok(YONGHUI), the quality control is not only the detection of the final process, but throughout the entire production process. We implement a set of quality control and assurance systems. Each batch of pipes is sampled and tested, and records are kept as a quality guarantee for the final product.
-Production process-
Quality reflects Dellok(YONGHUI) 's strength, outstanding quality rejects mediocrity, each set of advanced equipment and each unique process condenses the spirit of excellence of Dellok(YONGHUI) people. Dellok(YONGHUI) deeply understands that only near-perfect products can realize the core connotation of Dellok(YONGHUI) 's commitment to "achieve your value" , which guarantees your interests and values.
-Quality Control-
In order to ensure that the quality exceeds the standard, Dellok(YONGHUI) has perfect product management monitoring equipment in the facility, mainly including advanced equipment such as spectrometer, material testing machine, thermal performance tester, and water pressure and air pressure testing machine, Webster hardness meter and so on.
Product name | Material | Standard | Size(mm) | Application |
Low temperature tube | 16MnDG 10MnDG 09DG 09Mn2VDG 06Ni3MoDG ASTM A333 |
GB/T18984-
2003
ASTM A333
|
OD:8-1240* WT:1-200 |
Apply to - 45 ℃ ~ 195 ℃ low temperature pressure vessel and low temperature heat exchanger pipe |
High-pressure boiler tube | 20G ASTMA106B ASTMA210A ST45.8-III |
GB5310-1995 ASTM SA106 ASTM SA210 DIN17175-79 |
OD:8-1240* WT:1-200 |
Suitable for manufacturing high pressure boiler tube, header, steam pipe, etc |
Petroleum cracking tube | 10 20 |
GB9948-2006 | OD: 8-630* WT:1-60 |
Used in oil refinery furnace tube, heat exchanger tube |
Oil casing | J55,K55,N80,L80 C90,C95,P110 |
API SPEC 5CT ISO11960 |
OD:60-508* WT:4.24-16.13 |
Used for extraction of oil or gas in oil Wells casing, used in oil and gas well sidewall |
Size
Related Standard & Specification: API 5CT, ISO 11960, API 5B, GOST
Related Grade: J55, K55, N80, L80-1, L80-9Cr, L80-13Cr, P110, Q125, K55 D10, L80 D10.
Available Approved Marine: ABS / BV / LR / DNV / GL / KR, EN10204 3.2 MTC
Special Service: Sweet Service, Sour Service, Anti-H2S, NACE MR0175/ISO15156
Produce Process: Hot Rolled, Cold Drawn, Hot Expanded.
Accessories: Pup Joint, Coupling (Coupling Stock), Blast Joint, Crossover etc.
Connection: API connection and Premium connection, like TPCQ, HSM etc.
API Casing | |||||||||||
Size | Grade and Connection | Standards | |||||||||
OD mm (in) | WT/mm | H40 | J55 K55 | M65 | L80-1 R95 | N80-1 N80Q | C90 T95 | C110 | P110 | Q125 | |
114.3(4.5') | 5.21 | S | S | S | API SPEC 5CT/ISO11960 | ||||||
5.69 | S/B | S/B | |||||||||
6.35 | S/L/B | L/B | L/B | L/B | L/B | L/B | |||||
7.37 | L/B | L/B | L/B | L/B | L/B | ||||||
8.56 | L/B | L/B | |||||||||
127(5') | 5.59 | S | S | ||||||||
6.43 | S/L/B | S/L/B | |||||||||
7.52 | S/L/B | L/B | S/L/B | S/L/B | L/B | S/L/B | |||||
9.19 | L/B | S/L/B | S/L/B | L/B | S/L/B | L/B | |||||
11.1 | L/B | L/B | L/B | L/B | L/B | L/B | |||||
12.14 | L/B | L/B | L/B | L/B | L/B | ||||||
12.7 | L/B | L/B | L/B | L/B | L/B | ||||||
139.7(5.5') | 6.2 | S | S | S | |||||||
6.98 | S/L/B | S/L/B | |||||||||
7.72 | S/L/B | L/B | S/L/B | S/L/B | L/B | S/L/B | |||||
9.17 | L/B | S/L/B | S/L/B | L/B | S/L/B | ||||||
10.54 | L/B | S/L/B | S/L/B | L/B | S/L/B | S/L/B | |||||
168.28(6.625') | 7.32 | S | S/L/B | S/L/B | |||||||
8.94 | S/L/B | L/B | S/L/B | S/L/B | L/B | S/L/B | |||||
10.59 | L/B | S/L/B | S/L/B | L/B | S/L/B | ||||||
12.06 | S/L/B | S/L/B | L/B | S/L/B | L/B | ||||||
177.8(7') | 6.91 | S | S | S | |||||||
8.05 | S/L/B | L/B | S/L/B | S/L/B | L/B | ||||||
9.19 | L/B | S/L/B | S/L/B | L/B | S/L/B | ||||||
10.36 | L/B | S/L/B | S/L/B | L/B | S/L/B | ||||||
11.51 | L/B | S/L/B | S/L/B | L/B | S/L/B | ||||||
12.65 | S/L/B | S/L/B | L/B | S/L/B | S/L/B | ||||||
13.72 | S/L/B | S/L/B | L/B | S/L/B | S/L/B | ||||||
193.68(7.625') | 8.33 | S/L/B | S/L/B | L/B | L/B | L/B | |||||
9.52 | L/B | L/B | L/B | L/B | L/B | ||||||
10.92 | L/B | L/B | L/B | L/B | L/B | ||||||
12.7 | L/B | L/B | L/B | L/B | L/B | ||||||
14.27 | L/B | L/B | L/B | L/B | L/B | ||||||
15.11 | L/B | L/B | L/B | L/B | L/B | ||||||
15.88 | L/B | L/B | L/B | L/B | L/B | ||||||
219.08(8.625') | 6.71 | S | S | S | |||||||
7.72 | S | S/L/B | S | ||||||||
8.94 | S | S/L/B | S/L/B | ||||||||
10.16 | S/L/B | L/B | L/B | L/B | L/B | ||||||
11.43 | L/B | L/B | L/B | L/B | L/B | ||||||
12.7 | L/B | L/B | L/B | L/B | |||||||
14.15 | L/B | L/B | L/B | L/B | L/B | ||||||
244.48(9.625') | 8.94 | S | S/L/B | S/L/B | |||||||
10.03 | S/L/B | S/L/B | L/B | L/B | L/B | L/B | |||||
11.05 | L/B | L/B | L/B | L/B | L/B | ||||||
11.99 | L/B | L/B | L/B | L/B | L/B | L/B | |||||
13.84 | L/B | L/B | L/B | L/B | L/B | ||||||
15.11 | L/B | L/B | L/B | L/B | |||||||
273.05(10.75') | 8.89 | S/B | S/B | ||||||||
10.16 | S/B | S/B | S/B | ||||||||
11.43 | S/B | S/B | S/B | S/B | S/B | S/B | S/B | ||||
12.57 | S/B | S/B | S/B | S/B | |||||||
13.84 | S/B | S/B | S/B | ||||||||
15.11 | S/B | S/B | S/B | ||||||||
298.45(11.75') | 9.65 | ||||||||||
10.92 | |||||||||||
12.19 | S/B | S/B | |||||||||
13.06 | S/B | S/B | S/B | ||||||||
339.72(13.375') | 8.38 | S | |||||||||
9.65 | S/B | S/B | |||||||||
10.92 | S/B | S/B | |||||||||
12.19 | S/B | S/B | S/B | S/B | S/B | ||||||
13.06 | S/B | S/B | S/B | S/B | S/B | ||||||
406.4(16') | 16.66 | ||||||||||
508(20') | 16.13 | S/L/B | |||||||||
Note: S-SC;L-LC;B-BC. |
API Tubing | |||||||||||
Size | Grade and Connection | Standards | |||||||||
OD mm (in) | WT/mm | H40 | J55 | L80-1 R95 | N80-1 N80Q | C90 | T95 | P110 | |||
42.16(1.66') | 3.18 | API SPEC 5CT/ISO11960 | |||||||||
3.56 | N/U | N/U | N/U | N/U | N/U | N/U | |||||
4.85 | U | U | U | U | U | U | U | ||||
48.26(1.9') | 3.18 | N/U | N/U | N/U | N/U | N/U | N/U | ||||
3.68 | N/U | N/U | N/U | N/U | N/U | N/U | |||||
5.08 | U | U | U | U | U | U | U | ||||
6.35 | |||||||||||
7.62 | |||||||||||
60.32(2.375') | 4.24 | ||||||||||
4.83 | |||||||||||
6.45 | |||||||||||
7.49 | |||||||||||
8.53 | |||||||||||
73.02(2.875') | 5.51 | N/U | N/U | N/U | N/U | N/U | N/U | N/U | |||
7.01 | N/U | N/U | N/U | N/U | N/U | ||||||
7.82 | N/U | N/U | N/U | N/U | N/U | ||||||
8.64 | U | U | |||||||||
9.96 | |||||||||||
11.18 | U | N | N | N | N | N | |||||
88.9(3.5') | 5.49 | ||||||||||
6.45 | N/U | N/U | N/U | N/U | N/U | N/U | N/U | ||||
7.34 | N | N | N | N | N | N | |||||
9.52 | N/U | N/U | N/U | N/U | N/U | ||||||
10.92 | |||||||||||
12.09 | |||||||||||
13.46 | |||||||||||
101.6(4') | 5.74 | N | N | N | N | N | N | N | |||
6.65 | U | U | U | U | U | U | U | ||||
8.38 | |||||||||||
10.54 | |||||||||||
12.7 | |||||||||||
15.49 | |||||||||||
114.3(4.5') | 6.88 | N/U | N/U | N/U | N/U | N/U | N/U | N/U | |||
8.56 | |||||||||||
9.65 | |||||||||||
10.92 | |||||||||||
12.7 | |||||||||||
14.22 | |||||||||||
16 | |||||||||||
Note: N-NU; U-EU. |
Chemical Analysis(%) For Part Standard | ||||||||||||||||
Standard | Class | Grade | Type | C | Mn | Mo | Cr | Ni | Cu | P | S | Si | ||||
min | max | min | max | min | max | min | max | max | max | max | max | max | ||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |
API 5CT | 1 | H40 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |
J55 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |||
K55 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |||
N80 | 1 | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |||
N80 | Q | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |||
2 | M65 | - | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | ||
L80 | 1 | - | 0.43 | - | 1.9 | - | - | - | - | 0.25 | 0.35 | 0.03 | 0.03 | 0.45 | ||
L80 | 9Cr | - | 0.15 | 0.3 | 0.6 | 0.9 | 1.1 | 8 | 10 | 0.5 | 0.25 | 0.02 | 0.01 | 1 | ||
L80 | 13Cr | 0.15 | 0.22 | 0.25 | 1 | - | - | 12 | 14 | 0.5 | 0.25 | 0.02 | 0.01 | 1 | ||
C90 | 1 | - | 0.35 | - | 1.2 | 0.25 | 0.85 | - | 1.5 | 0.99 | - | 0.02 | 0.01 | - | ||
C90 | 2 | - | 0.5 | - | 1.9 | - | NL | - | NL | 0.99 | - | 0.03 | 0.01 | - | ||
C95 | - | - | 0.45 | - | 1.9 | - | - | - | - | - | - | 0.03 | 0.03 | 0.45 | ||
T95 | 1 | - | 0.35 | - | 1.2 | 0.25 | 0.85 | 0.4 | 1.5 | 0.99 | - | 0.02 | 0.01 | - | ||
T95 | 2 | - | 0.5 | - | 1.9 | - | - | - | - | 0.99 | - | 0.03 | 0.01 | - | ||
3 | P110 | - | - | - | - | - | - | - | - | - | 0.03 | 0.03 | - | |||
4 | Q125 | 1 | - | 0.35 | - | 1.35 | - | 0.85 | - | 1.5 | 0.99 | - | 0.02 | 0.01 | - | |
Q125 | 2 | - | 0.35 | - | 1 | - | NL | - | NL | 0.99 | - | 0.02 | 0.02 | - | ||
Q125 | 3 | - | 0.5 | - | 1.9 | - | NL | - | NL | 0.99 | - | 0.03 | 0.01 | - | ||
Q125 | 4 | - | 0.5 | - | 1.9 | - | NL | - | NL | 0.99 | - | 0.03 | 0.02 | - |
Tensile Property For Part Standard | |||||||||||
Standard | Class | Grade | Type | Elongation(%) | Yield Strengh(Mpa) | Tensile Strengh(Mpa) | Hardness(Max) | Required WT | Allowed Tolerance of Hardness | ||
Min | Max | Min | HRC | HBW/- | mm | HRC | |||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |
API 5CT | 1 | H40 | 0.5 | 276 | 552 | 414 | - | - | - | - | |
J55 | - | 0.5 | 379 | 552 | 517 | - | - | - | - | ||
K55 | - | 0.5 | 379 | 552 | 655 | - | - | - | - | ||
N80 | 1 | 0.5 | 552 | 758 | 689 | - | - | - | - | ||
N80 | Q | 0.5 | 552 | 758 | 689 | - | - | - | - | ||
2 | M65 | - | 0.5 | 448 | 586 | 586 | 22 | 235 | - | - | |
L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 | - | - | ||
L80 | 9Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | - | - | ||
L80 | 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | - | - | ||
C90 | 1,2 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | ≤12.70 | 3 | ||
C90 | 1,2 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | 12.71~19.04 | 4 | ||
C90 | 1,2 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | 19.05~25.39 | 5 | ||
C90 | 1,2 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | ≥25.40 | 6 | ||
C95 | - | 0.5 | 655 | 758 | 724 | - | - | - | - | ||
T95 | 1,2 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | ≤12.70 | 3 | ||
T95 | 1,2 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | 12.71~19.04 | 4 | ||
T95 | 1,2 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | 19.05~25.39 | 5 | ||
T95 | 1,2 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | ≥25.40 | 6 | ||
3 | P110 | - | 0.6 | 758 | 965 | 862 | - | - | - | - | |
4 | Q125 | 1~4 | 0.65 | 862 | 1034 | 931 | - | - | ≤12.70 | 3 | |
Q125 | 1~4 | 0.65 | 862 | 1034 | 931 | - | - | 12.71~19.04 | 4 | ||
Q125 | 1~4 | 0.65 | 862 | 1034 | 931 | - | - | ≥19.05 | 5 |
Packaging & Shipping
FAQ
Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
Q: Can you provide sample?
A: Yes, for regular sizes sample is free but buyer need to pay freight cost.