Sweden: Hardox 550
Germany: DILLIDUR 550
Germany: XAR 550
Japan: JFE EH550
Japan: ABREX 550
Finland: Raex 500
USA: AR550
Austria: Creusabro series
NM550 ASTM/AISI Alloy Hot Rolled Wear Resistant Steel Plate & Sheet has a complete range of specifications, with thickness ranging from 3mm to 100mm. It supports customized cutting and composite processing, meeting various needs from mining machinery to engineering structural components. The width range is 1200 – 2200mm, the length range is 6000 – 12000mm, and the tolerance standards are: thickness ±0.3mm, width ±5mm, length ±20mm.
Proprietà meccanica
Mark | Drawing Direction | Strength of Extension(MPa) | Ductility(A50%) | Brinell Hardness (HBW) | Regular Size |
NM550 | Crosswise | ≥1650 | ≥6 | ≥530 | 5-60mm |
Chemical Component
(C):0.12~0.25%)
(Si):0.20~0.55%
(Mn):0.80~1.60%
(P):≤0.025%
(S):≤0.020%
(Cr):0.50~1.40%
(Mo):0.20~0.50%
(Ni):≤0.30%
(Cu):≤0.25%
Delivery Status
Quenching & Quenching + Tempering (quenching and tempering) & TMCP + Tempering & Tempering & Hot-rolled state
Applicazione
Mining machinery # Construction machinery # Metallurgical machinery # Other fields
Wear-Resisting Property
High hardness / Abrasion resistance / Impact resistance / Resistenza alla corrosione
Wear-resistant Steel Plate 550 Processing and Welding Techniques:
NM550 significantly surpasses NM500 in hardness and stress sensitivity; after cutting, all cut edges and corners must be thoroughly ground to relieve stress and remove the surface hardened layer, thereby preventing cracking, edge chipping, or spalling during subsequent assembly and heavy-load operations.
In which challenging scenarios can the NM550 Wear Resistant Steel Plate be used?
What are the advantages of NM550 compared to NM450?
70mm, 50mm, 40mm, 60mm Wear Resistant Steel Plate Nm500. Under the same extreme working conditions, the wear resistance lifespan is increased by 20% – 30% compared to Nm500, and by more than 50% compared to Nm450. It is the exclusive material for high-end working conditions with extremely high load, 24-hour continuous operation, and strict requirements for the lifespan of components.
What makes the NM550 chemical element formula special?
Anti-Wear Abrasion Resistant Steel Plate 550: This steel plate is formulated with a high-hardness micro-alloying strengthening recipe. It precisely optimizes the ratios of carbon, chromium, molybdenum, and boron elements, strictly controls harmful impurities such as sulfur and phosphorus, and refines the martensite wear-resistant matrix structure. This significantly enhances the hardness e wear resistance stability of the base material, avoiding problems such as coarse grain size, brittleness, and insufficient quenching property in ultra-high hardness steel.
What are the standards for the NM550 steel plate?
GB/T 24186
What are some maintenance tips for the NM550?
Hot Rolled Nm550 Wear Resistant Plate, 7mm, 16mm, 18mm, 20mm Thick Steel Plate. During use, regularly check for wear conditions and replace damaged parts in time. If there is slight wear on the surface, it can be repaired by grinding and continue to be used; in case of severe wear, it must be replaced immediately to avoid affecting the overall performance of the equipment.
NM550 Purchase and Usage Tips:
1. Choose a reputable manufacturer:JBLstainless
2. Reasonable calculation of thickness: Select the appropriate thickness based on the specific working conditions. Generally, for mining equipment, a thickness of 8-12mm is recommended; for cement plants, a thickness of 15mm or more can be chosen.
3. Welding process requirements: Professional.
In response to the demands of special-shaped devices, what processing services can JBL offer?
What is the processing performance of NM550?
Raw Material Plant
↓
Coking & Sintering Workshop
↓
Blast Furnace Workshop
↓
EAF, BOF, Oxygen Station & Continuous Casting Workshop
↓
Hot Rolling, Cold Rolling & High-speed Wire Rod Workshop
一 : Left Upper Raw Material Inlet
Iron Ore → Ball Mill → Sintering→ Crushing → blast furnace
Limestone → Crushing→ blast furnace
Coal → Coking→ blast furnace → Slag
二. Blast Furnace Section Process
Broken materials, sintered ore, coke → Blast Furnace
The iron water produced by the blast furnace is sent out by → Hot Metal Ladle Car and divided into two routes:
The iron water is sent to the converter
Supporting materials: Scrap Steel → Limestone → Oxygen Station are supplied simultaneously to the steelmaking process
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