Company Profile
Tianjin Tianyingtai Steel Pipe Co., Ltd is located in Jinghai, Tianjin, which is professionally engaged in steel production, sales, steel processing and export business. We have 9 production lines for various kinds of steel pipe, 10 processing production lines and 50 sets equipment for steel product. We not only can produce 500,000 tons of various sizes of ERW pipe, square tube and rectangle tube, but also can produce steel braces, scaffolding, pedal and other metal products 500 million sets.
In order to provide customers with the sales, storage, transportation, and distribution service. We invest a lot in building large indoor steel distribution centers to provide customers with convenient, efficient service, equipped with more vehicles on transport team which offer 24 hours transportation services to customers.
We are looking forward to “Work together and create a better future!”
Basic Info
Brand Name: TYT Steel
Technique: Cold Drawn
Surface Treatment: Polished
Section Shape: Round
Wall Thickness: 0.8mm~20mm
Surface: Annealed, Pickling, Straightening
Trademark: Iron&steel
Specification: GB/T8163, JIS, DIN
Type: Seamless
Material: Carbon Steel, Alloy Steel, Stainless Steel
Usage: Pipeline Transport, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Outer Diameter: 18mm~416mm
Length: 6meters, 9meters, 12meters, Random Length
Tolerance of Size: +/- 0.05mm
Transport Package: Bundled, Wrapped, Wooden Cased.
Origin: Tianjin, China
OD: 21mm~416mm
Wall thickness: 0.8mm~20mm
Technique: Cold drawing
Standard: ASME SA192/SA179, GB/T8162, GB/T8163, GB/T3639, DIN2391-2
Steel material: 20#(AISI 1020/DIN1.0402 C22), 45#(ASTM 1045, DIN45), 20Cr, Q345B, etc
We are professional manufacturer of cold drawn seamless steel pipe in China. Our seamless steel pipe with very high precision of size
Usage: Widely used for mechanical processing, Automobile industry, hydraulic equipments
Advantages of our high precision seamless steel pipe:
1. Smaller caliber
2. Accept small qty order
3. Good surface treatment
4. The pipe with superior performance, suitable for mechanical making
Accurate size
Perfect surface treatment
Anti-corrosion Packing
Final Supply Conditions
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming(e. G. Bending expanding). |
| Cold finished and stress-relleved | BKS | Heat treatment is applled following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere |
Preicision Seamless Tube Size List
| OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) |
| Φ13.1 | 1.5-3 | Φ35.5 | 1.5-7 | Φ46.1 | 1.5-10 | Φ93 | 1.5-15 |
| Φ19.25 | 1.5-5 | Φ35.9 | 1.5-7 | Φ47.8 | 1.5-10 | Φ19-Φ121 | 1.5-15 |
| Φ22 | 1.5-5 | Φ36.6 | 1.5-7 | Φ49.2 | 1.5-10 | ||
| Φ22.2 | 1.5-5 | Φ38 | 1.5-8 | Φ49.5 | 1.5-10 | ||
| Φ25 | 1.5-6 | Φ38.4 | 1.5-8 | Φ52.3 | 1.5-10 | ||
| Φ26.3 | 1.5-6 | Φ40 | 1.5-10 | Φ53.8 | 1.5-10 | ||
| Φ27 | 1.5-6 | Φ40.2 | 1.5-10 | Φ57 | 1.5-10 | ||
| Φ28 | 1.5-6 | Φ40.9 | 1.5-10 | Φ59 | 1.5-10 | ||
| Φ30 | 1.5-6 | Φ41.3 | 1.5-10 | Φ60 | 1.5-11 | ||
| Φ30.25 | 1.5-6 | Φ41.6 | 1.5-10 | Φ62.5 | 1.5-11 | ||
| Φ30.9 | 1.5-6 | Φ42 | 1.5-10 | Φ74 | 1.5-11 | ||
| Φ31 | 1.5-7 | Φ43 | 1.5-10 | Φ75 | 1.5-11 | ||
| Φ32 | 1.5-7 | Φ44.5 | 1.5-10 | Φ76 | 1.5-11 | ||
| Φ35 | 1.5-7 | Φ45.8 | 1.5-10 | Φ89 | 1.5-15 |
| Material | Chemical composition (%) | ||||||
| C | Mn | P | S | Si | Ni | Cu | |
| 20# AISI 1020 | 0.17~0.23 | 0.35~0.65 | ≤0.035 | ≤0.035 | 0.17~0.37 | ≤0.3 | ≤0.25 |
| 45# ASTM1045, DIN45 | 0.42~0.5 | 0.5~0.8 | ≤0.04 | ≤0.045 | 0.17~0.37 | ≤0.25 | ≤0.25 |
| Steel material | Tensile Strength MPa | Yield strength MPa | Elongation % | Hardness | Straightness |
| 20# | ≥510 | ≥245 | ≥25 | ≤156HB | 0.3~1.0 |
| 45# | ≥647 | ≥355 | ≥16 | ≤HRC62 | 0.3~1.0 |
Contact Us
Name: Iris Zhang
E-mail: iris@tytgg.com.cn
Mobile & Whatsapp: +86 18622939671
Skype：+86 18622939671
Website: www.tytsteelpipes.com
