Carbon Steel Low Alloy Steel Plate Q345 S355JR 1.0045 SS490

• Type: Steel Plate
• Standard: ASTM, AISI, GB, JIS, DIN, BS
• Certification: ISO
• Surface Treatment: Blackface
• Technique: Hot Rolled
• Application: Ship Plate, Boiler Plate, Container Plate
• Model NO.: Q345, S355JR, 1.0045, SS490
• Special Use: High-strength Steel Plate, Mould and Die steel
• Stock: Stock
• Technology: Hot Rolled
• Heat Treatment: Annealed
• Surface: Black/Peeling/Polishing/machined
• Test: SGS / Ut 100% / Element Testing
• Service: sample free and 24 hours online
• Certificate: ISO/Mill Certificate
• Transport Package: for Customers′request
• Specification: diameter8-800mm
• Trademark: CF STEEL
• Origin: China
• HS Code: 7228
• Production Capacity: 1000t/Mouth

Product Description

Carbon Steel Low Alloy Steel Plate Q345 S355JR 1.0045 SS490

Q345 steel  is one mainly of Carbon and low alloy steel , usually it is produced in hot rolled state, hot rolled steel plate, hot rolled steel coil/sheet, it has comprehensive mechanical and welding property, as it shows good performance in structural purposes, it is widely used as welding structural part in manufacturing of ship, railway and vehicles, bridges, boiler, pressure vessel container, steel oil tank, etc. Yield point of Q345 steel plate decreases as plate thickness increases.

Properties:
1. Low alloy structural steel
2. Good mechanical properties
3. Delivered in hot rolled or normalizing state 
4. Low temperature performance, plasticity and good weldability
5. Can be used in areas where its temperature is above -40 ºC

Equivalent grades of   steel   Q345( Only for reference)

EU	USA	Germany	Japan	England	China
S355JR	A572 A678Gr.A SSGrade50	St52-3	SM490A SS490	50B	Q345

Q345 Steel Chemical Composition:

Steel Standard	Steel Grade	Chemical Composition
		C≤	Mn	Si≤	P≤	S≤	V	Nb	Ti	Al≥
Q345	A	0.020	1.00~1.60	0.55	0.045	0.045	0.02~0.15	0.015~0.060	0.20	-
	B	0.020	1.00~1.60	0.55	0.040	0.040	0.02~0.15	0.015~0.060	0.20	-
	C	0.020	1.00~1.60	0.55	0.035	0.035	0.02~0.15	0.015~0.060	0.20	0.015
	D	0.020	1.00~1.60	0.55	0.030	0.030	0.02~0.15	0.015~0.060	0.20	0.015
	E	0.020	1.00~1.60	0.55	0.025	0.025	0.02~0.15	0.015~0.060	0.20	0.01

About GUANGZHOU CHANGFENG STEEL CO.,LTD
 
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in plastic mould steel,hot work mould steel,cold work mould steel,alloy steel for mechanical,high speed steel, etc. All material are with high quality and competitive price. 
 
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
 
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 30-50days (depend on the quantity)after receiving your prepayment or firm order.
 
Q: What is the payment term?
A: T/T or L/C or Trade Assurance.
 
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come. 


Why Choose Us
1. Competitive price and quality from our own factory 
2. Approved by ISO9001, CE, SGS every year 
3. Best service with 24 hours reply 
4. Flexible payment with T/T,L/C , Trade Assurance
5. Smooth production ability(1000tons/month)
6. Quick delivery and standard exporting package 
7. OEM/ODM 

Warehous




Processing




Strict Quality Control