High-Strength Wind Turbine Steel Plates | ASTM/EN Certified & Custom Sizes

Company Overview‌

As a specialized supplier with 15+ years of industry experience, CJM provides complete wind tower steel plate solutions that cover the entire supply chain from material selection to final installation. Our extensive product portfolio meets diverse project requirements across all major international standards.

Integrated Service Capabilities:

• Full-range product selection: From standard grades to specialized offshore formulations
• Value-added processing: Precision cutting (laser/plasma), edge treatment, and surface preparation
• One-stop logistics: Bundled transportation solutions with real-time shipment tracking

Global Market Presence:Trusted by wind energy developers across Europe, South America, the Middle East, and India, our products consistently meet the stringent requirements of international projects. CJM’s established supply network ensures reliable delivery to both emerging and mature wind markets worldwide.

Why Choose CJM Steel?‌

• Reliable Supply: Stable inventory ensures timely delivery
• Technical Support: Professional team for material selection guidance
• Competitive Pricing: Factory-direct prices with no middlemen
• One-Stop Service: From material supply to precision cutting
• Global Experience: Familiar with various international standards

Product Introduction

Steel grade and dimension

Steel Category	Steel Grade	Dimension (mm)			Standard	Delivery condition
		Thickness	width	Length
Land wind Power steel	Q235FTB~E Q345FTC~F Q420FTC~F Q460FTC~F	6~160	1050~4050	5000~23000	GB/T 28410	AR、CR、N、TMCP
	Q355C~E	6~160			GB/T 1591	AR
	Q355NC~E					N、NR
	Q355MC~E	6~130				TMCP
	Q420NC~E	6~80				N、NR
	Q420MC~E	6~130				TMCP
Offshore wind power steel	DH36、EH36	6~100			GB/T 712	NR、N、TMCP
	F36	6~80				TMCP、N、QT
	S355G7/G8/G9/G10+M S420G1/ G2+M S460G1/G2+M	6~130			EN10225	TMCP
	S355G7/G8/G9/G10+N					N
	S420G1/G2+QT S460G1/G2+QT					QT

Chemical Composition

Grades and chemical composition of GB/T 28410

Steel grade	quality grade	chemical composition /%
		C ≤	Mna	P ≤	S ≤	Si ≤	Nb ≤	V ≤	Ti ≤	Mo ≤	Cr ≤	Ni ≤	Cu ≤	Als ≥	N ≤
Q235FT	B、C	0.18	0.50~1.40	0.030	0.025	0.50	0.05	0.06	0.050	0.10	0.30	0.30	0.30	0.015	0.012
	D、E			0.025	0.020
Q275FT	C		0.50~1.50	0.025	0.020		0.05	0.06		0.10		0.30			0.012
	D				0.015
	E、F														0.010
Q345FT	C、D	0.20	0.90~1.65	0.025	0.015		0.60	0.12		0.20		0.50			0.012
	E、F			0.020	0.010										0.010
Q420FT	C、D		1.00~1.70	0.025	0.015		0.60	0.15		0.20		0.50			0.012
	E、F			0.020	0.010										0.010
Q460FT	C、D		1.00~1.70	0.025	0.015	0.60	0.70	0.15		0.30	0.60	0.80	0.55		0.012
	E、F			0.020	0.010										0.010

Gades and carbon equivalents delivered under hot rolling and controlled rolling conditions

Steel grade	delivery condition	quality grade				carbon equivalent（CEV）/%
						thickness ≤ 40mm	thickness ＞ 40mm
Q235FT	Hot Rolling、 Controlled Rolling	B、	C、	D、	E	≤ 0.36	≤ 0.39
Q275FT		C、	D、	E、	F	≤ 0.38	≤ 0.40
Q345FT		C、	D、	E、	F	≤ 0.42	≤ 0.44
Q420FT	Hot Rolling、 Controlled Rolling	C、	D、	E、	F	≤ 0.45	≤ 0.47
Q460FT		C、	D、	E、	F	≤ 0.46	≤ 0.48

Gades and carbon equivalents delivered under N and NR conditions

Steel grade	delivery condition	quality grade				carbon equivalent（CEV）/%
						thickness ≤ 40mm	thickness ＞ 40mm
Q235FT	Normalizing、Normalizing Rolling	B、	C、	D、	E	≤ 0.38	≤ 0.40
Q275FT		C、	D、	E、	F	≤ 0.40	≤ 0.42
Q345FT		C、	D、	E、	F	≤ 0.43	≤ 0.45
Q420FT	Normalizing、Normalizing Rolling	C、	D、	E、	F	≤ 0.48	≤ 0.50
Q460FT		C、	D、	E、	F	≤ 0.52	≤ 0.53

CEV and Pcm delivered under TMCP and TMCP+N conditions

Steel grade	delivery condition	quality grade				carbon equivalent（CEV）/%			Pcm/%
						thickness /mm
						≤ 40	> 40~60	> 60
Q275FT	TMCP、TMCP+ Tempering	C、	D、	E、	F	≤ 0.34	≤ 0.36	≤ 0.38	≤ 0.20
Q345FT		C、	D、	E、	F	≤ 0.39	≤ 0.41	≤ 0.43	≤ 0.20
Q420FT		C、	D、	E、	F	≤ 0.44	≤ 0.46	≤ 0.48	≤ 0.20
Q460FT		C、	D、	E、	F	≤ 0.46	≤ 0.48	≤ 0.50	≤ 0.20

Grades and chemical composition of EN 10225

Steel grade	C	Si	Mn	P	S	Cr	Mo	Ni	Alt a	Cu	N	Nb	Ti	V	Cr+Mo+Ni+Cu	Nb +V	Nb+V+T i
	≤			≤						≤
Ladle Analysis
S355G2+N	0.2	≤ 0.5	0.9- 1.65	0.035	0.03	0.3	0.1	0.5	≥ 0.02	0.35	0.015	0.06	0.03	0.12	–	–	–
S355G3+N	0.18			0.03	0.025										–	–	–
S355G5+M	0.14		≤  1.6	0.035	0.03	–	0.2	0.3		–		0.05	0.05	0.1	–	–	–
S355G6+M				0.03	0.025	–				–					–	–	–
Ladle Analysis and Product Analysis
S355G7+Mb	0.14	0.15-0.55	1-   1.65	0.02	0.01	0.25	0.08	0.5	0.015-0.055	0.3	0.01	0.04	0.025	0.06	0.9	0.06	0.08
S355G7+Nb
S355G8+Mb					0.007
S355G8+Nb
S355G9+Nb	0.12		≤   1.65		0.01	0.2	0.08c	0.70d				0.03			–
S355G9+Mb
S355G10+Nb				0.015	0.005										–
S355G10+Mb
S420G1+QTb	0.14 e			0.02	0.01	0.25	0.25	0.7				0.04		0.08	0.9	0.09	0.11
S420G1+Mb
S420G2+QTb					0.007
S420G2+Mb
S460G1+QTb					0.01
S460G1+Mb
S460G2+QTcb					0.007
S460G2+Mb

CEV and Pcm for EN 10225

Steel grade	CEV,% , ≤	Pcm , %, ≤	Steel grade	CEV,% , ≤	Pcm , %, ≤
S355G2+N	0.43	–	S420G1+QT	0.42	0.22c
S355G3+N			S420G1+M
S355G5+M			S420G2+QT
S355G6+M			S420G2+M
S355G7+N	0.43	0.24	S460G1+QT S460G1+M	0.43	0.22c
S355G7+M			S460G2+QT
S355G8+N			S460G2+M
S355G8+M			S420G1+QT
S355G9+N	0.43	0.22	S355G9+M	0.41 a/ 0.42b	0.21a/0.22b
S355G10+N			S355G10+M

Mechanical Properties

Grades and me chanical properties of GB/T 28410

Steel grade	quality grade	Lower Yield Strength aRel/（N/mm2） ≥			Tensile Strength Rm/（N/mm2）	Elongation after Fracture A/%L0=5.65 √ S0≥	Charpy V-notch Impact Energy c、dKV2/J≥	180° Bend Test d= mandrel diameter，a= specimen thickness
		thickness /mm						thickness /mm
		≤ 16	> 16~40	> 40~100				≤ 16	> 16~100
Q235FT	B、C、D	235	225	215	360~510	24b	47	d=2a	d=3a
	E						34
Q275FT	C、D	275	265	255	410~560	21b	47
	E、F						34
Q345FT	C、D	345	335	325	470~630	21b	47
	E、F						34
Q420FT	C、D	420	400	390	520~680	19b	47
	E、F						34
Q460FT	C、D	460	440	420	550~720	17	47
	E、F						34

Mechanical properties of S355 grade of EN 10225 standard

steel grade	Tensile Strength Rma,Mpa		Minimum Yield Strength ReH,Mpa						Minimum Elongation a,%	Charpy V-notch Impact		Maximum Thickness,mm
	thickness t,mm	thickness t,mm	t ≤ 16	16<t  ≤ 25	25<t  ≤ 40	40<t  ≤ 63	63<t  ≤ 100	100<t  ≤ 150		Temperature ,℃	Impact Energy≥ ,J
	≤ 100	>100
S355G2+N	470-630		355	345	–	–	–	–	22	-20	50	20
S355G3+N	470-630		355	345	345	–	–	–	22	-40	50	40
S355G5+M	470-610		355	345	–	–	–	–	22	-20	50	20
S355G6+M	470-610		355	345	345	–	–	–	22	-40	50	40
S355G7+N	470-630	460-620	355	355	345	335	325	320	22	-40	50	150b
S355G8+N	470-630	460-620	355	355	345	335	325	320	22	-40	50	150 b
S355G7+M	470-630	–	355	355	345	335	325	–	22	-40	50	100 b
S355G8+M	470-630	–	355	355	345	335	325	–	22	-40	50	100 b
S355G9+N	470-630	460-620	355	355	345	335	325	320	22	-40	50	150 b
S355G9+M	470-630	–	355	355	345	335	325	–	22	-40	50	100 b
S355G10+N	470-630	460-620	355	355	345	335	325	320	22	-40	50	150 b
S355G10+M	470-630	–	355	355	345	335	325	–	22	-40	50	100 b

Mechanical properties of s420 grade of EN 10225 standard

steel grade	Tensile Strength Rma,Mpa		Minimum Yield Strength ReH,Mpa					Minimum Elongation a,%	Charpy V-notch Impact		Maximum Thickness ,mm
	t ≤ 40	40 ＜ t ≤ 100	t ≤ 16	16 ＜ t ≤ 40	40 ＜ t ≤ 63	63 ＜ t ≤ 80	80 ＜ t ≤ 100		Temperature，℃	Impact Energy ≥ ,J
S420G1+QT	500-660	480-640	420	400	390	380	380	19	-40	60	100b
S420G1+M	500	480	420	400	390	380	380	19	-40	60	100b
S420G2+QT	500	480	420	400	390	380	380	19	-40	60	100b
S420G2+M	500	480	420	400	390	380	380	19	-40	60	100b

Mechanical properties of s460 grade of EN 10225 standard

Thickness Range ,mm	≤ 16	>16 ≤ 25	>25 ≤ 40	>40 ≤ 63a	>63 ≤ 80a	>80 ≤ 100a
Minimum Yield Strength ReH,MPa	460	440	420	415	405	400
Tensile Strength Rm,MPa	540-700	530-690	520-680	515-675	505-665	500-660
Minimum Elongation ,%	17	17	17	17	17	17
Minimum Average Charpy V-notch Impact Energy J	-40℃ , 60

Applications‌

• Wind turbine towers (base, middle, top sections)
• Nacelle structural components
• Foundation flange rings and anchor cages
• Transition pieces for offshore installations
• Heavy-duty lifting equipment for wind farms

Our Promise

• ① Factory-direct competitive pricing
• ② Technical guidance for your projects
• ③ Reliable supply chain management
• ④ Tailored solutions for your needs

Factory & Equipment‌

Packaging & Logistics‌

• Standard Export Packaging‌: Waterproof paper + steel straps + wooden pallets.
• Flexible Options‌: OEM packaging or bulk shipments.
• Global Logistics‌: FOB, CIF, or door-to-door delivery with real-time tracking.

Contact Us‌

Ready to order or need a quote? Email or call us for more information.

Q: What is your company’s main products/services?

A: We are a professional manufacturer for Carbon Steel, Alloy Steel and Profile products. We have the experience of steel business for more than 10 years and our products are exported to Mid East,South America,Southeast Asia,Africa,South and East Asia etc.

Q: Can I go to your factory for a visit?

A: Of course, we welcome customers from all over the world to visit our factory.

Q: What are your terms of payment?

A: 30% T/T deposite and 70% balance before shipment.

Q: What is your delivery time?

A: For stocks,we could transport the goods to loading port within 7 days after we received the deposit; For production,it usually takes about 15-30 days after receiving the deposit.

Q: Do you provide samples? Are they free or paid?

A: Samples are available for free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?

A:Yes, we fully accept ‌third-party inspections.

Q: Why should I buy from you not from other suppliers?

A: Integrating the superior resources of China’s steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

Q:How can you guarantee quality?

A: Always a pre-production sample before mass production;Always 100% inspected before shipment