we keep high quality, competitive price, thousands tons of stock, most efficient delivery and reliable cooperation for global valued customers. We have been engaging industry steel for over 20 years, best service and the most competitive price is one of our greatest advantages that make us today!

Carbon steel coil is made from slabs (mainly continuous cast slabs), which are heated and then made into strips by roughing and finishing mills. The hot steel strip from the last finishing mill is cooled to the set temperature by laminar flow and rolled into coils by a coiler. The cooling coils are processed into steel sheets, flat coils, and slit strip products through different finishing lines according to the different needs of customers.

Grade	Rank	Chemical Composition( %)
		C	Mn	Si	S	P
Q195		0.06~0.12	0.25~0.50	≤0.3	≤0.05	≤0.045
Q215	A	0.09~0.15	0.25~0.55	≤0.3	≤0.05	≤0.045
	B				≤0.045
Q235	A	0.14~0.22	0.30~0.65	≤0.3	≤0.05	≤0.045
	B	0.12~0.20	0.30~0.70		≤0.045
	C	≤0.18	0.35~0.80	-	≤0.04	≤0.04
	B				≤0.045
Q275		0.28~0.38	0.50~0.80	≤0.35	≤0.05	≤0.045

Standard	Grade	General Size	Delivery Condition
ASTM A36	A36/A36-B	5-20 * 2300-2500 * C	Boron added or Black Condition
ASTM A283	A283-B/A283C	5-20 * 2300-2500 * C	Boron added or Black Condition
ASTM A572	A572Gr50-B/A572Gr42-B	5-20 * 2300-2500 * C	Boron added or Black Condition
ASTM A515	A515Gr70	5-20 * 2300-2500 * C	Boron added or Black Condition
ASTM A516	A516Gr70	5-20 * 2300-2500 * C	Boron added or Black Condition
JIS G 3101	SS400-B	5-20 * 2300-2500 * C	Boron added or Black Condition
JIS G3136	SN400B	5-20 * 2300-2500 * C	Boron added or Black Condition
EN10025-2:2004	S235JR-S355K2+N	5-20 * 2300-2500 * C	Boron added or Black Condition
EN10025-5:2004	S355J2W/S355K2W	5-20 * 2300-2500 * C	Boron added or Black Condition

FAQ

1.How is the quality of your products?
Our products are manufactured strictly according to national and international standard, and we take a test on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.

2.Do you accept the third party inspection?
Yes, absolutely we accept.

3.Do you provide samples? Is it free or extra?
After price confirmation, you can require for samples to check our quality counter display. If you need the samples, we will charge for the sample shipping cost .But the sample shipping cost can be refundable after order confirmation.

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ST12 ST13 ST14 ST15 Mild Steel Cold Rolled Carbon Steel Strip Coil