HDT controls the entire manufacturing process from raw material to finished products, Inspection points are localed in the manufacturing process to ensure all products meet all requirements. In such quality control system, faults are detected at the earliest possible stage of the production process in order to eliminate the risk of rejection at final inspection. We have made continuous efforts to reduce the problem throughout total quality assurance system including traceability control, YUHONG not only inspect by ourself , also through TPI like BV, SGS, DNV, ABS, MOODY, IBR, so that today the quality of our productsis clearly recognized by our client.
Seamless steel pipes are usually made by hot rolling or cold rolling of low alloy structural steels such as 16Mn, 5MnV or 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc., which are high quality carbon-bonded steels such as 10, 20, 30, 35, 45.
Seamless pipes made of low carbon steel such as 10 # and 20 # are mainly used for fluid conveying pipes. Seamless tubes made of 45, 40Cr and other medium carbon steels are used to manufacture mechanical parts, such as stress parts of automobiles and tractors.
HDT supply huge qty of Cr-Mo Alloy seamless pipe and tube , and export more than 35 countries . Our alloy seamless tube be width used in boiler and heating.
HDT controls the entire manufacturing process from raw material to finished products, Inspection points are localed in the manufacturing process to ensure all products meet all requirements. In such quality control system, faults are detected at the earliest possible stage of the production process in order to eliminate the risk of rejection at final inspection. We have made continuous efforts to reduce the problem throughout total quality assurance system including traceability control, YUHONG not only inspect by ourself , also through TPI like BV, SGS, DNV, ABS, MOODY, IBR, so that today the quality of our productsis clearly recognized by our client.
| Supply |
1. Carbon steel pipe |
| 2. Petroleum casing pipe |
| 3. Fluid pipe |
| 4. structure pipe |
| 5. Alloy steel pipe |
| Standard |
API 5L, ASME, ASTM, DIN, GB8162, GB8163, GB5310,etc. |
| Thickness |
SCH5~SCH160, STD, XS, XXS, 2mm~100mm |
| Outer Diameter |
1/8"~24"(6mm~610mm) |
| Supply Length |
5.8m 6m 12m or According to customer demand |
| Surface Treatment |
Black painting, black varnish, transparent oil, epoxy coating, etc |
| Package |
In bundles, ends can be beveled or square cut, end capped or according to customer demand |
| Used Area |
Petroleum, chemical, power, gas, water, metallurgy, shipbuilding, construction, etc. |
| Certification |
ISO9001,2000, API, Mill Test Certificate |
| Third Party Inspection |
SGS, or According to customer demand |
| |
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|
| Carbon |
Chromiun |
Low Temperature |
Stainless Steel |
Duplex |
Copper& Bronze |
Titanium |
Ni-Alloy |
| SA178-A |
SA213-T1 |
SA333-Gr.1 |
SA213 |
TP316L |
A789-S31803 |
SB111-C70600 |
SB338-GR.1 |
SB163 |
NO2200 |
| SA178-C |
SA213-T11 |
SA333-Gr.3 |
SA249 |
TP316H |
A789-S32205 |
SB111-C71500 |
SB338-GR.2 |
SB167 |
NO2201 |
| SA179 |
SA213-T12 |
SA333-Gr.6 |
SA268 |
TP316Ti |
A789-S32750 |
SB111-C71640 |
SB338-GR.5 |
SB444 |
NO8020 |
| SA192 |
SA213-T22 |
SA333-Gr.7 |
SA269 |
TP316LN |
A789-S32760 |
SB111-C68700 |
SB338-GR.7 |
SB514 |
NO6022 |
| SA209-T1 |
SA213-T5 |
SA333-Gr.8 |
SA376 |
TP321 |
A789-S32707 |
SB111-C44300 |
SB338-GR.9 |
SB619 |
N10276 |
| SA209-T1a |
SA213-T9 |
SA334-Gr.1 |
TP304 |
TP321H |
A789-S32304 |
|
SB338-GR.12 |
SB622 |
NO4400 |
| SA209-T1b |
SA213-T91 |
SA334-Gr.3 |
TP304L |
TP347 |
A789-S31500 |
|
|
SB626 |
NO6600 |
| SA210-A1 |
|
SA334-Gr.6 |
TP304H |
TP347H |
S31254 |
|
|
SB674 |
NO6601 |
| SA210-C |
|
SA334-Gr.7 |
TP304N |
TP405 |
254MA |
|
|
SB677 |
NO6625 |
| SA214 |
|
SA334-Gr.8 |
TP310H |
TP409 |
17-4PH |
|
|
SB704 |
NO690 |
| SA513 MT 1010 |
|
|
TP310S |
TP410 |
17-7PH |
|
|
SB705 |
NO8800 |
| SA513 MT 1015 |
|
|
TP309S |
TP430 |
15-7PH |
|
|
N1001 |
NO8810 |
| SA513 MT 1020 |
|
|
TP317 |
TP439 |
|
|
|
N10665 |
NO8811 |
| |
|
|
TP317L |
TP444 |
|
|
|
N10675 |
NO8825 |
| |
|
|
TP348 |
TP446 |
|
|
|
TP904L |
|
| |
|
|
TP347HFG |
|
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|
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| Tube Sizes for Heat Exchangers & Condensers & Boiler |
| |
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|
|
| Outside Diameter |
|
BWG |
| 25 |
22 |
20 |
18 |
16 |
14 |
12 |
10 |
| |
Wall Thickness mm |
| 0.508 |
0.71 |
0.89 |
1.24 |
1.65 |
2.11 |
2.77 |
3.40 |
| mm |
inch |
|
Weight kg/m |
| 6.35 |
1/4 |
0.081 |
0.109 |
0.133 |
0.174 |
0.212 |
|
|
|
| 9.53 |
3/8 |
0.126 |
0.157 |
0.193 |
0.257 |
0.356 |
0.429 |
|
|
| 12.7 |
1/2 |
|
0.214 |
0.263 |
0.356 |
0.457 |
0.612 |
0.754 |
|
| 15.88 |
5/8 |
|
0.271 |
0.334 |
0.455 |
0.588 |
0.796 |
0.995 |
|
| 19.05 |
3/4 |
|
0.327 |
0.405 |
0.553 |
0.729 |
0.895 |
1.236 |
|
| 25.4 |
1 |
|
0.44 |
0.546 |
0.75 |
0.981 |
1.234 |
1.574 |
2.05 |
| 31.75 |
1 1/4 |
|
0.554 |
0.688 |
0.947 |
1.244 |
1.574 |
2.014 |
2.641 |
| 38.1 |
1 1/2 |
|
0.667 |
0.832 |
1.144 |
1.514 |
1.904 |
2.454 |
3.233 |
| 44.5 |
1 3/4 |
|
|
|
1.342 |
1.774 |
2.244 |
2.894 |
3.5 |
| 50.8 |
2 |
|
|
|
1.549 |
2.034 |
2.574 |
3.334 |
4.03 |
| 63.5 |
2 1/2 |
|
|
|
1.949 |
2.554 |
3.244 |
4.214 |
5.13 |
| 76.2 |
3 |
|
|
|
2.345 |
3.084 |
3.914 |
5.094 |
6.19 |
| 88.9 |
3 1/2 |
|
|
|
2.729 |
3.609 |
4.584 |
5.974 |
7.27 |
| 101.6 |
4 |
|
|
|
|
4.134 |
5.254 |
6.854 |
8.35 |
| 114.3 |
4 1/2 |
|
|
|
|
4.654 |
5.924 |
7.734 |
9.43 |
ASTM A213/ASME SA213 T2, T11, T12, T22, T91, T92 Chemical Composition and Mechanical Properties
| Grade |
Chemical Composition% |
| C |
Si |
Mn |
P, S Max |
Cr |
Mo |
Ni Max |
V |
Al Max |
| T2 |
0.10~0.20 |
0.10~0.30 |
0.30~0.61 |
0.025 |
0.50~0.81 |
0.44~0.65 |
– |
– |
– |
| T11 |
0.05~0.15 |
0.50~1.00 |
0.30~0.60 |
0.025 |
1.00~1.50 |
0.44~0.65 |
– |
– |
– |
| T12 |
0.05~0.15 |
Max 0.5 |
0.30~0.61 |
0.025 |
0.80~1.25 |
0.44~0.65 |
– |
– |
– |
| T22 |
0.05~0.15 |
Max 0.5 |
0.30~0.60 |
0.025 |
1.90~2.60 |
0.87~1.13 |
– |
– |
– |
| T91 |
0.07~0.14 |
0.20~0.50 |
0.30~0.60 |
0.02 |
8.0~9.5 |
0.85~1.05 |
0.4 |
0.18~0.25 |
0.015 |
| T92 |
0.07~0.13 |
Max 0.5 |
0.30~0.60 |
0.02 |
8.5~9.5 |
0.30~0.60 |
0.4 |
0.15~0.25 |
0.015 |
| Grade |
Chemical Composition% |
Mechanical Properties |
| W |
B |
Nb |
N |
T. S |
Y. P |
Elongation |
Hardness |
| T2 |
– |
– |
– |
– |
≥ 415MPa |
≥ 205MPa |
≥ 30% |
163HBW(85HRB) |
| T11 |
– |
– |
– |
– |
≥ 415MPa |
≥ 205MPa |
≥ 30% |
163HBW(85HRB) |
| T12 |
– |
– |
– |
– |
≥ 415MPa |
≥ 220MPa |
≥ 30% |
163HBW(85HRB) |
| T22 |
– |
– |
– |
– |
≥ 415MPa |
≥ 205MPa |
≥ 30% |
163HBW(85HRB) |
| T91 |
– |
– |
0.06~0.10 |
0.03~0.07 |
≥ 585MPa |
≥ 415MPa |
≥ 20% |
250HBW(25HRB) |
| T92 |
1.50~2.00 |
0.001~0.006 |
0.04~0.09 |
0.03~0.07 |
≥ 620MPa |
≥ 440MPa |
≥ 20% |
250HBW(25HRB) |
ASTM A213/ASME SA213 T2, T11, T12, T22, T91, T92 Tolerance
| Outside Diameter |
OD Tolerance |
WT Tolerance |
Ovality Tolerance |
Cut Length Tolerance |
| OD≤ 12, 7 mm |
± 0, 13 mm |
± 15 % |
– |
+ 3, 18 mm, – 0 mm |
| 12, 7 mm < OD ≤ 38, 1 mm |
± 0, 13 mm |
± 10 % |
max, 1, 65 mm |
+ 3, 18 mm, – 0 mm |
| 38, 1 mm < OD ≤ 88, 9 mm |
± 0, 25 mm |
± 10 % |
max, 2, 41 mm |
+ 4, 76 mm, – 0 mm |
- SA213 T11 Alloy Steel Tube use in Petrochemical Industry
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- SA213 T11 Alloy Steel Tube use in Nuclear Power Plant Industry
- SA213 T11 Alloy Steel Tube use in Oil and Gas Industry
- SA213 T11 Alloy Steel Tube use in Research & Development
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- SA213 T11 Alloy Steel Tube use in Pulp & Paper Indusry
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