Q345 Round Seamless Steel Pipes
Standard: ASTM
Technique: Seamless
Grade: Carbon Steel
Delivery Time: 8-14 days
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of q345 round seamless steel pipes in China, also supports customized service with low price. Welcome to wholesale discount q345 round seamless steel pipes for sale here from our factory. Contact us for free sample.
Q345 Round Seamless Steel Pipes
Q345 steel pipe is a kind of low alloy steel pipe (C < 0.2%). 'Q' stands for the yield strength of this material, followed by '345,' which represents the yield value of this material, approximately 345 megapascals. As the thickness of the material increases, its yield value decreases. Q345 seamless pipe can be used for various structures in cold areas below -40℃.
Q345 Seamless Carbon Steel Pipes Specification
|
Material |
Q345B, Q345C, Q345D, Q345E, Q390, Q390B, Q390C, Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460, Q460D, Q500C, Q500D, Q500E, Q550C, Q550D, Q550E, Q620C, Q620D, Q620E, Q690A, Q690B, Q690C, Q690D, Q690E, Q690D, Q690C, Q890C, Q890D, 16Mo3, 16MnL, 16MnR ,16Mng, 16MnDR, HG785D, S690QL, 50MN |
|||
|
Thickness |
1.5mm-50mm / Customized |
|||
|
Standard |
AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc. |
|||
|
Technique |
Hot rolled / Cold rolled |
|||
|
Surface Treatment |
Black / Galvanized / Coated / Oiled / Painting / Customized |
|||
|
Thickness tolerance |
±0.1mm |
|||
|
Application |
It is mainly used to make structural parts such as car girder, beam, transmission shaft and car chassis parts, which can reduce the weight of the parts. |
|||
|
Shipment time |
Within 7-15 workdays after receiving deposit or L/C |
|||
|
Export packing |
Waterproof paper, and steel strip packed. |
|||
|
Capacity |
250,000 tons/year |
|||
|
Quality Control |
We can provide the Mill Test Certificate (MTC), or a third-party inspection institution for tests. |
|||
|
Payment Terms |
TT / LC / Western Union (30% in advance) |
|||
|
Delivery Time |
Within 7-10 working days |
|||
Q345 Alloy Steel Pipe
Q345 Steel Pipe Grade and Chemical Compositon,%
| Steel Grade | C | Si | Mn | P | S | Al | Nb | V | Ti | Cr | Ni | Mo |
| Q345A | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | - | ≤0.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.012 | ≤0.10 |
| Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | - | ||||||
| Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.030 | ≥0.015 | ||||||
| Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.025 | ≥0.015 | ||||||
| Q345E | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.020 | ≥0.015 |
| Steel Grade | Yield Strength | Tensile Strength | Elongation |
| Q345A | ≥345MPa | 490-675MPa | ≥21% |
| Q345B | ≥345MPa | 490-675MPa | ≥21% |
| Q345C | ≥345MPa | 490-675MPa | ≥22% |
| Q345D | ≥345MPa | 490-675MPa | ≥22% |
| Q345E | ≥345MPa | 490-675MPa | ≥22% |
FAQ
Q 1: What are the payment methods?
A: We accept a wire transfer of 30% as a deposit and 70% of the balance with a copy of the bill of lading. We also accept Western Union and VISA.
Q 2: How long does it normally take to place a product order?
A: The average lead time for a prototype/first article is 1-2 weeks, or 10 days for a production mold if a mold is involved. The average production lead time after sample approval is 2-3 weeks.
Q 3: What is your standard packaging?
A: All shipments are packed in cartons and then loaded on pallets. Special packaging methods are also accepted upon request.
Hot Tags: Q345 Round Seamless Steel Pipes, China Q345 Round Seamless Steel Pipes manufacturers, suppliers, factory, Api Seamless Pipe, A500 Hollow Rectangular Tube, KS D3566 Carbon Steel Pipe, Wholesale A53 Steel Seamless Tube, carbon steel pipe for fuel cell plants, seamless pipe for gas distribution
Send Inquiry
