Name: Np550 Wear Resistant Sheet Hot Rolled Steel Plate
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Np550 Wear Resistant Sheet Hot Rolled Steel Plate

Hot rolled steel is steel that has been roll-pressed at very high temperatures-over 1,700, which is above the re-crystallization temperature for most steels. This makes the steel easier to form, and resulting in products that are easier to work with. To process hot rolled steel, manufacturers first start with a large, rectangular length of metal, called a billet. The billet is heated and then sent for pre-processing, where it is flattened into a large roll. From there, it is kept at a high temperature and run through a series of rollers to achieve its finished dimensions. Steel shrinks slightly as it cools. Since hot rolled steel is cooled after processing, there is less control over its final shape, making it less suitable for precision applications. Hot rolled steel is often used in applications where minutely specific dimensions aren't crucial.

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◉ PRODUCT SPECIFICATION

There are three types of carbon steel: low, medium, and high carbon steel. Generally, the higher the carbon content, the stronger and more durable the plate is, but also less ductile and weldable. Low carbon steel is sometimes known as "mild steel" and contains between 0.04% and 0.30% carbon. Medium carbon steel ranges in carbon content from 0.31% to 0.60% and manganese content from 0.060% to 1.65%. While it is stronger than low carbon steel, it is more difficult to weld, form, and cut. You'll frequently see medium carbon steels hardened and tempered with heat treatment. High carbon steel is also called "carbon tool steel" and ranges in carbon content from 0.61% to 1.50%.

Product Parameters

Product Name	Mild Carbon Steel Plate / Mild Carbon Steel Sheet
Standard	ASTM, AISI, DIN, EN, BS, SUS, JIS
Material	Q235, A36, SS400, Q345, St52, Gr60, Gr70, A283, Gr A, Gr B, Gr C, etc.
Thickness	1mm~100mm
Width	600mm-1500mm or as customer required
Length	1-12m or as required
Packaging	Standard export seaworthy package,suit for all kinds of transport, or as required
Delivery Time	According to the quantity you ordered or upon negotiation
Price Terms	EX-Working, FOB, C&F, CIF, CNF or others
Application	steel plate are widely used in shipping building, engineer construction, mechanical manufacturing, the size of alloy steel sheet can be made according to clients required.

Different classifications of carbon steel standards and grade information--FYI

Type	Grade	Standard
Carbon structural steel	Q195-Q275(A B C D )	GB
	SS330-SS540	Jis G3101
	S185-S275J2G3	En 10025
	1010-1030	Astm A29M
High quality Carbon structural steel	08F-70Mn	GB
	S09CK-S70C	Jis G4051
	C10E-C85E	En 10083-1 etc
	1008-1572	Astm A29M
Low alloy high strength Carbon structural steel	Q295A-Q460E	GB
Low alloy high strength Carbon structural steel	S355N-P460NL	En 10028
Alloy Carbon structural steel	20Mn2-25Cr2Ni4WA	GB
	SMn420-SNCM420	Jis G4106
	1524-3316	Astm A29M
	18NiCr5-4--36CrNiMo4 etc	En 10084
Weld Weather-resistance steel	Q235NH-Q390GNH	GB
Weld Weather-resistance steel	SMA400BP-SPA-H	Jis G3114
Wear-resistance steel	NM350-NM600, etc	GB
Pressure vessels steel	Q245R-Q370R, 15CrMoR-14Cr1MoR etc	GB
Ship steel plate	A32-AH36(ADEF) series, CCS series etc	GB

Chemical composition

Steel grade	C	Si	Mn	P	S	Als
Grade AH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015
Grade DH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015
Grade EH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015
Grade FH36	≤0.18	≤0.50	0.9-1.6	≤0.035	≤0.035	≥0.015

Mechanical properties

Steel grade	Yield point/MPa	Tensile point /MPa	Elongation/%	Temperature/° C	V-type impact test
					Akv/J
					≤50MM	50-70MM	70-100MM
Grade AH36	≥355	490-630	≥21	0	34/24	41/27	50/34
Grade DH36	≥355	490-630	≥21	-20	34/24	41/27	50/34
Grade EH36	≥355	490-630	≥21	-40	34/24	41/27	50/34
Grade FH36	≥355	490-630	≥21	-60	34/24	41/27	50/34

◉ Surfcae selection

SURFACE	CHARACTERISTIC	SUMMARY OF MANUFACTURING METHOD	APPLICATION
NO.1	Silvery white	Hot rolled to specified thickness	Do not need to have a glossy surface use
NO.1	lackluster	Hot rolled to specified thickness	Do not need to have a glossy surface use
NO.2D	Silvery white	After cold rolling, heat treatment and pickling are carried out	General material, deep material
NO.2B	Gloss is stronger than No.2D	After No.2D treatment, the final light cold rolling is carried out through the polishing roller	The general material
BA	As bright as a sixpence	No standard, but usually a bright annealed surface with high reflectivity.	Building materials, kitchen utensils
NO.3	Rough lapping	Grind with 100~200# (unit) strop tape	Building materials, kitchen utensils
NO.4	Intermediate grinding	Polished surface obtained by grinding with 150~180# strop abrasive tape	Building materials, kitchen utensils
NO.240	Fine lapping	Grinding with 240# strop abrasive tape	kitchenware
NO.320	Very fine grinding	Grinding was carried out with 320# strop abrasive tape	kitchenware
NO.400	The luster is close to BA	Use 400# polishing wheel to grind	General timber, building timber, kitchen appliances
HL	Hairline grinding	Suitable particle material for hair stripe grinding (150~240#) with many grains	Building, construction material
NO.7	It's close to mirror grinding	Use a 600# rotary polishing wheel to grind	For art or decoration
NO.8	Mirror ultrafinish	The mirror is ground with a polishing wheel	Reflector, for decoration

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