• Wuxi Wilke Metal Materials Co., Ltd.
    ويلك مسؤول جدًا عنا، وقد أنهوا بضائعنا العاجلة في أقصر وقت ممكن، شكرًا حقًا، لقد قمنا أيضًا بفحص البضائع قبل التسليم، والجودة نحن أيضًا راضون جدًا، وسمك الحجم واللون يتماشى مع متطلباتي.
  • Wuxi Wilke Metal Materials Co., Ltd.
    Wilke is very professional, they are really helpful and reliable. The delivery time is really quick, and checked the coils with good quality. Look forward to cooperating with them soon!
  • Wuxi Wilke Metal Materials Co., Ltd.
    We asked a third party to test these goods, and the quality surprised us. The second batch of orders is already under negotiation. Thank you Fiona for your professional service!
Contact Person : Fiona Qin
Phone Number : +8618112493792
Whatsapp : +8618112493792

Q345 A572 28 Inch Carbon Steel Pipe Hot Rolled Welded Ms Carbon 3PE Coating

Place of Origin China
Brand Name BAO STEEL
Certification ISO MTC SGS
Model Number Carbon Steel Pipe
Minimum Order Quantity 1Ton
Price Negotiation
Packaging Details Standard seaworthy packing or customer required
Delivery Time 10-15 days after deposit
Payment Terms T/T, L/C
Supply Ability 5000 Ton per Month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Product Name Q345/ A572 Carbon Steel Tube/pipe Grade Q345,Q235,20#,10#,Q195
Standard ASTM,GB,DIN,API,BS Thickness 4 - 100 Mm
Length 1-12m,or As Required Application Structure Pipe,Boiler Pipe,Oil Pipe,Gas Pipe
High Light

Q345 Carbon Steel Pipe


A572 Carbon Steel Pipe


A572 MS Carbon Steel Pipe

Leave a Message
Product Description

Q345/ A572 Carbon Steel Tube Hot Rolled Welded 28 Inch Heavy Carbon Ms Pipe 3PE Coating


Q345 steel is one kind of Chinese standardized low alloy, medium tensile strength steel made with a hot-rolling process,

used for a number of manufacturing purposes.

To some extent, the Q345 possesses the same property and composition of ASME A572, namely the Q345 is equivalent to A572.

Q345 has good comprehensive mechanical properties, low temperature performance, good plasticity and weldability.

It is used as the structure, mechanical parts, building structure, general metal structural parts, heat, etc.

bearing dynamic load for medium and low pressure vessels, oil tanks, vehicles, cranes, mining machinery, power stations,

bridges, etc Used in rolling or normalizing state, it can be used for various structures in cold area below – 40 ℃.


Description :


Product Name Carbon Steel Tube/Pipe
Dia. 15-1200mm
Length 3m -12m or as required
Thickness 0.5-26.5mm for ERW, 4.0-80mm for SMLS
Technique Cold / Hot rolled
Surface Treatment 3PE/Fusion bond Expoxy Coating / Black Oil Coating as per customer's requirement
Thickness Tolerance ±0.01mm~ ±0.25mm
Material Q345
Application Bridges, vehicles, ships, buildings, pressure vessels, etc.
MOQ 1 ton , We can accept sample order.
Shipment Time Within 15-20 workdays after receiving deposit or workable L/C
Export Packing

Waterproof paper, and steel strip packed.Standard Export Seaworthy Package.

Suit for all kinds of transport,or as required

Capacity 250,000 tons/year


Grade classification of Q345 :


Q345 can be divided into Q345A, Q345B, Q345C, Q345D and Q345E by grade.

What they represent is that the impact temperature is different. Q345A, no impact;

Q345B, impact at 20 ° normal temperature; Q345C, 0 degree impact;

Q345D, is – 20 degree impact; Q345E, is – 40 degree impact. At different impact temperature, the impact value is different.


Q345 Chemical Composition :


Grade C Si Mn P S V Nb Ti AL
≤% ≤% ≤% ≤% ≤% % % % ≥%
Q345A 0.20 0.55 1.70 0.045 0.045 0.02-0.15 0.015-0.060 0.02-0.20 /
Q345B 0.20 0.55 1.70 0.040 0.045 0.02-0.15 0.015-0.060 0.02-0.20 /
Q345C 0.20 0.55 1.70 0.035 0.035 0.02-0.15 0.015-0.060 0.02-0.20 0.015
Q345D 0.18 0.55 1.80 0.030 0.030 0.02-0.15 0.015-0.060 0.02-0.20 0.015
Q345E 0.18 0.55 1.80 0.025 0.025 0.02-0.15 0.015-0.060 0.02-0.20 0.015



Q345 Physical properties :


Grade Tensile strength (MPa) Yield strength (MPa) Elongation δ5≥(%)        
Q345A (thickness≦16mm) 470-630 345 21
Q345B(thickness≦16mm) 470-630 345 21        
Q345C(thickness16-35mm) 470-630 ≥325 22        
Q345D(thickness35-50mm) 490-675 ≥295 22        
Q345E(thickness50-100mm) 490-675 ≥275 22    


Q345 A572 28 Inch Carbon Steel Pipe Hot Rolled Welded Ms Carbon 3PE Coating 0

Q345 A572 28 Inch Carbon Steel Pipe Hot Rolled Welded Ms Carbon 3PE Coating 1