High Tensile Nm 550 Wear Steel Sheet refers to special plate products designed for use in large-area wear conditions. The commonly used High Tensile Nm 550 Wear Steel Sheet is a plate product made of a certain thickness of alloy wear-resistant layer with high hardness and excellent wear resistance on the surface of ordinary low-carbon steel or low-alloy steel with good toughness and plasticity by surfacing method. In addition, there are cast wear-resistant steel plates and alloy quenched wear-resistant steel sheets.
The High Tensile Nm 550 Wear Steel Sheet is composed of a low-Carbon Steel Plate and an alloy wear-resistant layer. The alloy wear-resistant layer is generally 1/3~1/2 of the total thickness. When working, the matrix provides comprehensive properties such as strength, toughness and plasticity against external forces, and the alloy wear-resistant layer provides wear-resistant properties that meet the requirements of specified working conditions.
There is a metallurgical bond between the wear-resistant steel plate alloy wear-resistant layer and the substrate. Through special equipment and automatic welding process, the high-hardness self-protected alloy welding wire is uniformly welded on the substrate, and the number of composite layers is one to two or even multiple layers. During the composite process, due to the different shrinkage ratio of the alloy, uniform transverse cracks appear. It is a distinctive feature of wear-resistant steel plate.
The Nm 550 is mainly composed of chromium alloy, and other alloy components such as manganese, molybdenum, niobium, and nickel are also added. The carbides in the metallographic structure are distributed in fibers, and the fiber direction is perpendicular to the surface. The microhardness of carbide can reach HV1700-2000 or more, and the surface hardness can reach HRC58-62. Alloy carbide has strong stability at high temperature, maintains high hardness, and also has good oxidation resistance, and can be used normally within 500 ℃.
Description:
Product Name
| NM 550 Wear Resistant Steel Plate |
Standard
| ASTM DIN JIS GB |
Material
| Corten A/B,A588 Gr A/B/C,A242 Type 1,A606 Type 4 SPA-H,Q345GNHL ,Q235NH,Q355NH ,09CuPS235JOW,S235J2W,S355JOWP,S355J2WP,S355JOW NM360, NM400, NM450, NM500,NR360, NR400,B-HARD360, B-HARD400, B-HARD450 KN-55, KN-60, KN-63,AR400, AR450, AR500, AR600 |
Technology
| Hot Rolled ,Cold Rolled |
Tolerance
| Control with in the standard, OD:+/-1%, WT:+/-5%
|
Application
| Widely used in marine components, building steel structure components, substation auxiliary facilities, light industry, etc. |
Payment Terms
| 1.FOB 30%T/T,70% Before shipment
2.CIF 30% Pre-payment , Balance must be paid before shipment
3.Irrevocable 100% L/C at sight
|
Third Party Inspection
| SGS ,BV, MTC
|
Advantages
| 1.Short delivery time 2.Quality assurance 3.Competitive price, 4.Free Sample |
Delivery Time
| Within 25 days after receipt of advance payment |
Wear/Abrasion Resistant Steel --- Chinese Standard
| Wear/Abrasion Resistant Steel Equivalent Standards |
| Steel Grade | SSAB | JFE | DILLIDUR | ThyssenkKrupp | Ruukki |
| NM360 | - | EH360 | - | - | - |
| NM400 | HARDOX400 | EH400 | 400V | XAR400 | Raex400 |
| NM450 | HARDOX450 | - | 450V | XAR450 | Raex450 |
| NM500 | HARDOX500 | EH500 | 500V | XAR500 | Raex500 |
| Chemical Composition (%) of NM Wear Resistant Steel |
| Steel Grade | C | Si | Mn | P | S | Cr | Mo | B | N | H | Ceq |
| NM360/NM400 | ≤0.20 | ≤0.40 | ≤1.50 | ≤0.012 | ≤0.005 | ≤0.35 | ≤0.30 | ≤0.002 | ≤0.005 | ≤0.00025 | ≤0.53 |
| NM450 | ≤0.22 | ≤0.60 | ≤1.50 | ≤0.012 | ≤0.005 | ≤0.80 | ≤0.30 | ≤0.002 | ≤0.005 | ≤0.00025 | ≤0.62 |
| NM500 | ≤0.30 | ≤0.60 | ≤1.00 | ≤0.012 | ≤0.002 | ≤1.00 | ≤0.30 | ≤0.002 | ≤0.005 | ≤0.0002 | ≤0.65 |
| NM550 | ≤0.35 | ≤0.40 | ≤1.20 | ≤0.010 | ≤0.002 | ≤1.00 | ≤0.30 | ≤0.002 | ≤0.0045 | ≤0.0002 | ≤0.72 |
| Mechanical Properties of NM Wear Resistant Steel |
| Steel Grade | Yield Strength /MPa | Tensile Strength /MPa | Elongation A50 /% | Hardess (Brinell) HBW10/3000 | Impact/J （-20℃） |
| NM360 | ≥900 | ≥1050 | ≥12 | 320-390 | ≥21 |
| NM400 | ≥950 | ≥1200 | ≥12 | 380-430 | ≥21 |
| NM450 | ≥1050 | ≥1250 | ≥7 | 420-480 | ≥21 |
| NM500 | ≥1100 | ≥1350 | ≥6 | ≥470 | ≥17 |
| NM550 | - | - | - | ≥530 | - |
Wear/Abrasion Resistant Steel --- USA Standard
| Abrasion Resistant Steel Plate Availabillity |
| Grade | Thickness | Width | Length |
| AR200 / AR 235 | 3/16" – 3/4" | 48" – 120" | 96" – 480" |
| AR400F | 3/16" – 4" | 48" – 120" | 96" – 480" |
| AR450F | 3/16" – 2 " | 48" – 96 " | 96" – 480" |
| AR500 | 3/16" – 2 " | 48" – 96 " | 96" – 480" |
| AR600 | 3/16" – 3/4" | 48" – 96 " | 96" – 480" |
| Chemical Composition of Abrasion Resistant Steel Plate |
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | B |
| AR500 | 0.3 | 0.7 | 1.7 | 0.025 | 0.015 | 1 | 0.7 | 0.5 | 0.005 |
| AR450 | 0.26 | 0.7 | 1.7 | 0.025 | 0.015 | 1 | 0.7 | 0.5 | 0.005 |
| AR400 | 0.25 | 0.7 | 1.7 | 0.025 | 0.015 | 1.5 | 0.7 | 0.5 | 0.005 |
| AR300 | 0.18 | 0.7 | 1.7 | 0.025 | 0.015 | 1.5 | 0.4 | 0.5 | 0.005 |
| Mechanical Properties of Abrasion Resistant Steel Plate |
| Grade | Yield Strength MPa | Tensile Strength MPa | Elongation A | Impact Strength Charpy V 20J | Hardness Range |
| AR500 | 1250 | 1450 | 8 | -30C | 450-540 |
| AR450 | 1200 | 1450 | 8 | -40C | 420-500 |
| AR400 | 1000 | 1250 | 10 | -40C | 360-480 |
| AR300 | 900 | 1000 | 11 | -40C | - |
Product Show：
The steel plate is a flat steel that is cast with molten steel and pressed after cooling.
The steel sheet is flat, rectangular and can be directly rolled or cut from wide steel strips.
The steel plates is divided according to the thickness, the thin steel plate is less than 4 mm (the thinnest is 0.2 mm), the medium-thick steel plate is 4-60 mm, and the extra-thick steel plate is 60-115 mm.
Steel sheets are divided into hot rolling plate and cold rolling plate according to rolling.
Production Process：
1. Hot Rolled Steel Plate
Hot rolling processing methods include hot rolling, forging, extrusion and other methods.
2. Cold Rolled Steel Plate
Cold rolling processing methods include cold rolling, cold drawing and cold drawing, cold bending, cold extrusion and other methods.
The cold rolling method is to continue processing the hot rolled steel below the recrystallization temperature to make it cold rolled steel. Using cold rolling processing method can improve the mechanical properties of steel, and obtain products with high dimensional accuracy and certain smoothness.
Appliction:
Packing and Shipping:
FAQ：
Q: Are you a manufacturer?
A: Yes , we are a Carbon Steel Sheet manufacturer, We have own factory, which is located in Shandong,China. We have a leading power in producing and exporting carbon steel plate,Cold Rolled Steel Sheet, etc. We promise that we are what you are looking for.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we can accept BV, SGS third inspection .
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-35 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Contact Now
