Carbon steel pipes & tubes are specially designed for application in high temperature services. These pipes & tubes are suitable for welding, bending, flanging, and other similar forming operations.Our range of carbon steel pipes & tubes are oiled or black painted to prevent rusting while storage.
| Specification | ASTM A 106, IS-1239-IS3589, API 5L |
| Dimension | ANSIB 36. 10. |
| Grade | Gr. B, Gr. 6 |
| Type | Seamless, ERW, EFW, SAW, Spiral |
| Size | 1/4" to 48" |
Shipbuilding Pipe
1. Classification of ships:CCS,LR,BV,DNV,GL
2. Standard:GB/T5312
3. Material:1Cr0.5Mo, 2.25Cr1Mo
4. size:6mm-830mm(OD)X1.0mm-36mm(WT)
5. surface:annealed pickled or polished
6. Packing: Each in a PVC bag, Bundle with knitted plastic bag, wooden case or according to customers' request
7. Application: for Ship Building
| Society | Standard or usage | Steel grade |
| GLR | Non alloly | GL-R 410 |
| GB 18248 | 37Mn |
| EN 10297 | 34CrMo4 |
| DNV | for pressure | A53B, ASTM A53/A53M |
| ABS | for pressure | Grade 3 |
| BV | for pressure | 410HB |
| LR | for pressure | 410 |
| KR | for pressure | RST138,RST142,RST238,RST242,RST249,RST338, RST342 |
| NK | for pressure | Grade 1 No3/ KSTPG 42 |
| CCS | for pressure | 360, 410, 460, 490 |
Seamless Steel Tube
1. Grade: 20# 45# Q235 API J55, API K55, API L80, API N80, API P110
2. Standard: GB8162-1999 GB8163-1999 GB3087-99 GB5310-99 GB6479-86 GB9948-88 and so on.
Out diameter: 15MM-508MM
Wall thick:3-15mm
Length: 6-12m
Application: construction, oil plant, oil transpotation
| 25*2.5-3-6 | 76*4-5-6-8-10 | 146*6-8-10-14 | 245*35-40-45-50 | 480*10-12-14-18 |
| 28*2-5-6 | 76*12-16-18-20 | 146*16-20-25-34 | 273*8-10-14-16 | 480*22-25-30-40-50 |
| 30*3-6 | 80*5-6-10-15-17 | 152*5-6-10-14 | 273*18-20-28-30 | 500*11-15-25-50 |
| 32*3-4-6 | 83*4-5-6-10 | 152*12-14-18-20-25 | 273*32-40-50 | 508*10-13-15-22-30 |
| 34*3-5-6 | 83*13-15-18-20-22 | 152*28-30-35-40 | 299*9-10-12-16-18 | 530*8-10-11-12 |
| 35*5-8-9 | 89*4-5-6-8-10 | 159*4-5-6-8-10 | 299*20-25-30-40-50 | 530*14-18-20 |
| 38*3-4-7 | 89*10-13-16-20-25 | 159*12-14-18-20 | 325*8-10-14-18 | 530*25-30-35 |
| 42*3-5-7-10 | 95*5-6-10-12 | 159*25-30-35-40 | 325*20-25-30-36 | 580*10-12-16-20-28-30 |
| 43*7-8-10 | 95*15-18-22-25 | 168*7-8-10-13-15 | 325*40-45-50-60 | 600*10-12-14-18-24-48 |
Spiral Steel Pipe
1. Material:Q235B, Q215A B, 16Mn(Q345), X42, X52, X56, X60, X65, X70, L245, L290, L360.
2. Standard: GB/T9711.1-1997
3. Application: applied for structure and low pressure fluid service.
O.D. 219-1820mm(8"-72")
W.T. 2.5-16mm
Length: 6-12m Random, 12m fixed.
Usage: Boiler Use,water transport,Building,Machinery,Traffic,Aviation,Oil development ect.
| standard | GRADE | MECHANICAL CHEMICAL COMPOSITION |
| YIELD STRENGTH | TENSILE STRENGTH | ELONGATION | C Mn P S |
|
| Mpa | Mpa | % |
| API Spec 5L | A | 207 | 331 | Bitmap | 0.210.6 0.030 0.030 |
|
| B | 241 | 414 | 0.221.2 0.025 0.015 |
|
| X42 | 290 | 414 | 0.221.3 0.025 0.015 |
|
| X46 | 317 | 434 | 0.221.4 0.025 0.015 |
|
| X52 | 359 | 455 | 0.221.4 0.025 0.015 |
|
| X56 | 386 | 490 | 0.221.4 0.025 0.015 | 0.15% |
| X60 | 414 | 517 | 0.221.4 0.025 0.015 |
|
| X65 | 448 | 531 | 0.221.45 0.025 0.015 |
|
| X70 | 483 | 565 | 0.221.65 0.025 0.015 |
|
| GB/T9711-1997 | L175 | 175 | 315 | 27 | 0.210.60 0.030 0.030 |
|
| L210 | 210 | 335 | 25 | 0.210.90 0.030 0.030 |
|
| L245 | 245 | 415 | 21 | 0.261.15 0.030 0.030 |
|
| L290 | 290 | 415 | 21 | 0.281.25 0.030 0.030 |
|
| L360 | 360 | 460 | 19 | 0.301.25 0.030 0.030 |
|
| L390 | 390 | 490 | 18 | 0.261.35 0.030 0.030 |
|
| L415 | 415 | 520 | 17 | 0.261.35 0.030 0.030 |
|
| L450 | 450 | 525 | 17 | 0.261.40 0.030 0.030 |
|
| L485 | 485 | 570 | 16 | 0.231.60 0.030 0.030 |
|
| SY/T5037-2000 | Q235B | 235 | 375-460 | 26 | 0.12-0.20 0.30-0.70 0.045 0.045 |
Straight Steel Pipe
1. grade:X42,Q235,Q345,ST37
2. Standard: API5L ,ASTM106/53, GR.B, DIN17175/1629, A234B,A106B,Q195
Outside Diameter: 219mm to2802mm, Wall Thickness: 6 mm to 20mm
Thickness:8-100mm
Length:3-14m
Uses: Suitable for petroleum, natural gas, gas, shipbuilding, chemical industry, water conservancy and electric power.
Welded Steel Pipe
1. Standard:ASTMA554,A213,A312,A259,A270,A249,JIS,G3446,G3447,G3448,G3459
2. Grade: Q195,Q215,Q235,Q275,Q295,Q345
OD:21.3mm-219mm
Thickness: 6mm-650mm
WT:0.8mm-8.5mm
Length:6m-12m
The Welded Steel Pipe is widely used in water, oil, gas transmission pipelines and other oil drilling and casing, and can be used for the structure, shipbuilding, electric power, coal, chemical industry, and in areas such as thermal Network.
Boiler Pipe
Seamless high pressure bolier pipe
standard:GB5310,ASTM,DIN,BS
material:20G,15MoG,12Cr1MoVG
Grade:20G,20MnG,25MnG,15MoG,20MnG,12CrMoVG,15CrMoG,T5,T9,T12,T22,T91,T92
O.D:6-720mm,W.T:1-60mm
High pressure boiler tube is used for condition of high pressue,it need the pipe have large strength. commonly the material is alloy steel. the pipe was belongs to seamless steel pipe and used in boiler industry.
Hot Rolled Steel Pipe
1. Material:A 53 GR.B,A 106 GR. B,A 106C,A333 1.6,A335 P11/P12/P22P91,15NiCuMoNb456,A 312, TP 304H,TP 316,TP347H
2. Standard: ASTM A53,ASTM A 106,API 5L,DIN.JIS,BS,EN
OD:89mm(3inch)---630mm(24inch)
WT:4mm---12.7mm
length:less than 12m
usage:boiler tube,petroleum and natural gas industry.city construction,electric industry.
| Nominal size(inch) | Outer diameter(mm) | thickness | Outer diameter(mm) | Thickness(mm) |
| 1/2 | 21.3 | 1.5-2.5 | 133 | 1.4-4.0 |
| 0.6 | 25.5 | 1.4-2.5 | 140 | 0.9-4.5 |
| 1 | 33.4 | 1.5-2.75 | 159 | 1.5-7.75 |
| 1.2 | 40.08 | 1.4-3.0 | 165 | 0.9-4.0 |
| 1.5 | 48.3 | 1.3-3.25 | 180 | 3.5-9.5 |
| 2 | 60.3 | 1.3-3.25 | 273 | 5.75-9.5 |
| 2.5 | 73 | 1.3-3.75 | 325 | 2.0-9.5 |
| 3 | 88.9 | 1.4-4.5 | 426 | 4.0-9.5 |
| 4 | 114.3 | 1.7-6.25 | 426-1420 |
|
| 5 | 139.7 | 1.2-3.75 |
|
|
| 6 | 168.3 | 3.25-7.75 |
|
|
| 8 | 219.1 | 4.0-9.75 |
|
Structural pipe
1. Material: 20#,16Mn,A53 GrB ,A106GrB
2. Quality: 20#,35#,45# Q345,Q345B,Q345C,Q345D
OD: 70-340mm
WT:6-30mm
Length: fixed or random length
Used: create pipes, containers, equipment, pipe fittings and mechanical structure of management
ERW Steel Pipe
ERW steel pipes and tubes are used in various engineering purposes, fencing, scaffolding, line pipes etc.
Common sizes for ERW Steel Pipe range from 2 3/8 inch OD to 24 inch OD in a variety of lengths to over 100 feet. Surface finishes are available in bare and coated formats and processing can be handled on site to customer specifications.
1. Standard: ASTM 135, ASTM A53A/B, ASTM A500, BS1387, EN10219, EN 10255, EN39(BS1139), DIN2440/DIN2458/DIN2444, JIS G3444 etc., or produce according to buyer's request
2. Grades: A, B, X42, X46,X52, X56,X60
O.D.89-610mm, W.T. 3- 32mm.
Length: 1-24m
Hanzi industrial international co.,ltd is supplier of steel products.
Our products include: Steel Plate,Steel Rolls,Steel Pipe,Steel Profiles and other Shipbuilding Materials. details show on our website. our products have:
- High quality
- Reasonable price
- On time delievery
Any cooperat please feel free to contact us
HanZi International is an experienced and reliable supplier of high quality steel rail and steel material all over the world. We have brought together China's leading component manufacturers under the HanZi umbrella so you can gain purchasing advantages not found anywhere else in the industry. Today, as one of China's leading steel material products suppliers, HanZi International provides a wide variety of steel fabrication services. The factories located in Anyang city, Linzhou City, Handan City in Henan Province; Nantong City, Wuxi City, Taicang City in Jiangsu Province and Dalian City in Liaoning Province. Our users include ship building company, railroads, mining companies, heavy industries, overhead crane, railroad and tunneling industry, transit authorities, and operators of port facilities.
We are a dynamic Company. We continually striving to provide customers with benefits to improve the level of service we offer. Our knowledge of product, our relationship with manufacturers and our wide experience allow us to guarantee a high quality materials supply specifically tailored to various types of rail application, and bring you a quick reply to all your needs of supplies. And always at most competitive prices. We care about you as a customer and we pride ourselves on delivering what we promise.
No matter what your project is, HanZi International has a large selection of track accessories and tools to fit your needs: Steel rail; Steel plate, steel pipe, steel profiles, chequered plate, angle bar and much more. Our range of products and services is so vast that we cannot put everything on our website, so if you need more information or can't find what you're looking for, please don't hesitate to contact us.
Our Philosophy
HanZi International operates on the simple basis of being honest, fair, and treating all people with respect. We provided our customers with a personal touch and attention to detail that larger companies often don't have the time to address. We have patience, resources, and experience to ensure that your order is handled promptly and with the utmost care. We pride ourselves on being conscientious, reliable, and doing the right thing in every situation.
HanZi International is committed to exceed our customers'expectations with the highest quality products and services through total involvement and dedication.
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