Product Details

Product Description

1. Commodity: Boiler steel plate

2.Grade: A387 Gr.12/22,Q275R,Q345R, A515GR60/70,A516GR60/GR70 and so on.

3. Standard: GB, JIS, ASTM, BS, DIN, AISI, ASME, EN.

4. Certification: ISO9001;CE;FPC;JIS;ASTM;EN;ASME;JIS;BS.

Boiler steel plate Chemical Composition

Grade	Rank	Chemical Composition( %)
Grade	Rank	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
Q215	B	0.09~0.15	0.25~0.55	≤0.3	≤0.045	≤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	≤0.3	≤0.045	≤0.045
	C	≤0.18	0.35~0.80	-	≤0.04	≤0.04
	D	≤0.17	0.35~0.80	-	≤0.035	≤0.035
Q255	A	0.18~0.28	0.40~0.70	≤0.3	≤0.05	≤0.045
Q255	B	0.18~0.28	0.40~0.70	≤0.3	≤0.045
Q275		0.28~0.38	0.50~0.80	≤0.35	≤0.05	≤0.045

Boiler steel plate Standard

Executed 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	Black Condition
ASTM A516	A516Gr70	5-20 * 2300-2500 * C	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	Black Condition

Product Process

Boiler steel plate process

Forging	Forge by heating slowly and uniformly to 1000°C. After forging cool slowly in furnace or thermoinsulating material.
Annealing	Heat slowly to 780°C. Cool slowly in furnace at a slow rate to 600°C and then cool in air.
Stress Relieving	When heavy machining and/or grinding has been carried out, stress relieving is advisable to minimise the danger of distortion or cracking during the subsequent heat treatment. To stress relieve, heat the tools slowly to 650°C, soak for a minimum of two hours per 25mm of section and allow to cool down in the furnace to 500°C then continue to cool freely in air. The tools can then be finish machined, leaving on an allowance for final grinding after hardening and tempering.
Hardening	Pre heat the 600-700°C until heated through. Continue heating the to the final hardening temperature of 980-1050°C and allow the component to be heated through. Protect the component against decarburisation by using a neutral salt bath, controlled atmosphere furnace or vacuum. Air cool or quench in oil.
Tempering	Heat the 1.2083 uniformly and thoroughly to the selected tempering temperature and hold at heat for one hour per 25mm of total thickness. Double tempering is recommended. To achieve the best permutation of hardness, toughness and corrosion resistance it is recommended to temper at 250°C.
Heat Treatment	Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each s136 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of stainless tool steel.

Packing & Delivery

Packing Details :If tonnage is less, proposaling use container
20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High)
40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High)
If the goods is more,by bulk is more convenient and save money
Delivery Details : within 10 days after the order

MTC

Product Application

Applicate of different grade Boiler steel plate

1>.Q195,Q215
Because of low strength,good plasticity and toughness,easy to processing,so widely used in Building,structure,motorcycle bodywork steel nails,rivets,bolts and iron wire,etc.
2>.Q255, Q275
high strength, but plasticity,weldability and toughness is not very good, not easy to weld and cold bending processing, so they widely used for rolling reinforcing steel bar or bolt accessories, but more in the mechanical parts and tools, etc.
3>.Q235
Widely used in Building engineering. carbon content is 0.14% ~ 0.22%, with high strength, good plasticity and toughness and weldability, comprehensive performance is good,socan meet general steel structure and steel reinforced concrete requirements,and low cost..
So it also widely used to make reinforcing steel bar or building room frame, high-voltage transmission tower, Bridges, vehicles, boiler, containers, ship,

Our Company

Henan Juou Trading Co., Ltd was established in 2006, adheres to the tenet of "survival by quality, build brand by reputation, win market by price and innovate to develop". Our products are high-ranking and well sold both at home and abroad, for example, Hong Kong, South America, Europe, Japan, The Middle East, Africa, etc.

Our company specializes in steel coil & sheet, steel sections, steel structure, etc, are widely used in national defense, aerospace, transportation equipment manufacturing, marine platforms, oil pipelines, high-rise buildings and other industries. All of our products can be custom-made according to your requirement.

We can supply high quality(Grade A), competitive price, prompt delivery and excellent after-sale service. Because we have a professional technical team, which not only have decades working experience in steel industry, but also have large quantities of various products in stock.

Hope we can cooperate with your esteemed company!

FAQ

Q: How can I get some samples?
Small samples in store and can provide the samples for free. Catalog is available, most patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q: How can I get your price list?
Please send us your email or fax and order information – Quantity, Specification (steel type, thickness, width, surface finish), then I can send you the price list.
Q:How long is your delivery time?
Different products have different delivery time.The products will be delivered as soon as possible on the basis of the quality assurance.Usually the delivery time is within 10-15 days after we receive your payment.
Q:What are the advantages of your company?
We have many professional technical personnel. And we have more competitive prices and better after-sales service than other companies.
Q: How about the quality guarantee?
Visit Our factory is the best way to know each other more.
ISO9001:2008 by international quality system Certificate and The Third Inspection can prove our quality.
We will attach some relevant photos via email so show our factory, machine and products for you.
Q: If I can visit your company and factory?
You can come to henan for visiting at any time if you like, our sales colleague will meet you at the airport, then take action according to schedule.