• Jiangsu Hengdali Steel Industry Co., Ltd.
    Aiham Bader
    This time is very pleasant to work with you,we will continue to purchase from you.Looking forward to more cooperation.
  • Jiangsu Hengdali Steel Industry Co., Ltd.
    Carl Weiland
    Your product quality is very good,the service is timly and professional.We feel very comfortable to purchasing from you.
Contact Person : Iris Zhang
Phone Number : +8618914270939
WhatsApp : +8618914270939

Bv Q345 / Astm A572 Carbon Steel Tubing 15mm Dia

Place of Origin China
Brand Name Bao Steel/ TISCO/JISCO/HDL
Certification SGS,BV
Model Number Carbon Steel Pipe/ Tube
Minimum Order Quantity 2 Tons
Price Negotiable
Packaging Details Standard seaworthy export packing or as customer demands
Delivery Time 15 days after deposit
Payment Terms L/C, T/T, Western Union
Supply Ability 5000 Ton/Tons per Month

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Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

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

Product Details
Material Q345 Carbon Steel Dia. 15-2200mm
Thickness 0.8-26.5mm For ERW, 4.0-60mm For SMLS Length 5-12m Or As Required
Technique Cold Drawn/ Hot Rolled Standard GB/T700,ASTM
Surface 3PE/Fusion Bond Expoxy Coating / Black Oil Coating As Per Customer's Requirement Application Oil And Gas, Power Generation, Heat Transfer Etc.
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astm a572 carbon steel tubing


carbon steel tubing 15mm dia


astm a572 q345 carbon steel pipe

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Product Description

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 ℃.

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.







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 Oil and gas, power generation, heat transfer 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

250,000 tons/year







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







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












Bv Q345 / Astm A572 Carbon Steel Tubing 15mm Dia 0

Bv Q345 / Astm A572 Carbon Steel Tubing 15mm Dia 1








Q1. What are your company's main products ?

A1: Our main products are stainless steel plate/sheet, coil, round/square pipe, bar, channel, etc.


Q2. How do you control quality ?

A2: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.


Q3. What are the advantages of your company ?

A35: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.


Q4: What is the terms of packing?

A3: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers requirement.


Q5:What is your delivery time?

A4: For stocks, we could transport the goods to loading port within 7 days after we received your deposit

For production period, it usually takes about 15 days-30 days after receiving the deposit.


Q6. Can you provide sample ?

A7: We can provide the samll samples in stock for free, as long as you contact us.

Customized samples will take about 5-7days.


Q7. How many coutries you already exported ?

A6: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.