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Custom Steel Fabrication Suppliers in China - High Strength Steel Parts from Reliable Factory
Hot rolled plate (Q235B)
Mingli Metal offers Q235B type hot-rolled steel plates as an option. Through processing techniques such as laser cutting, bending forming, and argon arc welding, we can produce metal products that meet ASTM A36 grade standards and have cost advantages for you. They can be used in building frames, construction machinery parts, container shells, etc.
Key Properties
Yield strength ≥235MPa | carbon content 0.12-0.20% | surface oxide scale
Advantages
Low cost | excellent plasticity | easy to weld | ASTM A36 class
Processing Purpose
Custom laser-cut Q235B hot-rolled steel building frames, welded Q235B hot-rolled steel construction machinery parts, bending-formed Q235B hot-rolled steel container shells
Classic Case
Laser-cut and welded Q235B hot-rolled steel container corner parts
Processing Method
Laser cutting → bending and forming → arc welding
Processing Characteristics
Bending R Angle ≥2t (plate thickness) to prevent cracking
Product Advantages
Impact load 50 tons, through CSC certification
Cold rolled sheets (SPCC)
Mingli Metal offers SPCC type cold-rolled steel plates as an option. Through processing techniques such as laser cutting and CNC bending, and with the surface treatment of electro-galvanizing, we can produce metal products that meet the IEC 61439 standard and have a smooth surface. These products can be used in electrical appliance casings, precision structural parts, automotive interiors, etc.
Advantages
High dimensional accuracy ±0.1mm | smooth surface | suitable for electroplating
Processing Purpose
Custom laser-cut SPCC cold-rolled steel electrical appliance shells, CNC-bent SPCC cold-rolled steel precision structural parts, electro-galvanized SPCC cold-rolled steel automotive interior parts
Classic Case
Laser-cut and CNC-bent SPCC cold-rolled steel distribution box housings
Processing Method
Laser cutting → CNC bending → electro-galvanizing
Processing Characteristics
Bending rebound Angle <0.5° needs to be compensated
Product Advantages
No corrosion for 96h salt spray, in line with IEC 61439 standard
Hot-dip galvanized sheet (SGCC)
Mingli Metal offers SGCC type hot-dip galvanized steel sheets as an option. Through processing techniques such as die stamping and riveting assembly, and with surface treatment of local zinc supplementation, we can produce metal products that meet the JIS G3302 standard and have an outdoor lifespan of up to 20 years. They can be used for roof panels, ventilation ducts, outdoor cabinets, etc.
Key Properties
Zinc layer weight 60-180g/㎡ | Hardness of alloy layer HV250 | Self-repair
Advantages
No spray anticorrosion | Outdoor life 20 years + | JIS G3302 standard
Processing Purpose
Die-stamped SGCC hot-dip galvanized steel roof panels, riveted SGCC hot-dip galvanized steel ventilation ducts, custom SGCC hot-dip galvanized steel outdoor cabinets
Classic Case
Die-stamped and riveted SGCC hot-dip galvanized steel 5G base station waterproof boxes
Processing Method
Die punching → riveting and assembly → local zinc patching
Processing Characteristics
Avoid welding (zinc layer porosity)
Product Advantages
IP67 protection class, salt spray 1000h standard
Low alloy steel (Q355)
Mingli Metal offers Q355 type low alloy steel as an option. Through processing techniques such as laser cutting and welding, we can manufacture metal products that meet the EN 10025 S355 standard of the same level, with a yield strength of ≥355MPa. These products can be used in crane booms, wind power towers, new energy vehicle frames, etc.
Key Properties
Yield strength ≥355MPa | low temperature impact energy ≥34J (-20℃) | microalloying of molybdenum and vanadium
Advantages
Weight loss of 20% vs Q235 | Welding without preheating | EN 10025 S355 class
Processing Purpose
Laser-cut Q355 low alloy steel crane booms, welded Q355 low alloy steel wind power towers, custom Q355 low alloy steel new energy vehicle frames
Classic Case
Laser-cut and welded Q355 low alloy steel logistics forklift masts
Processing Method
Laser cutting → robot welding → vibration aging
Processing Characteristics
Thermal input ≤25kJ/cm anti-embrittlement
Product Advantages
Fatigue life > 1 million cycles
Tool steel (45#)
Mingli Metal offers 45# tool steel as an option. Through processing techniques such as laser cutting, vacuum quenching, and fine grinding, we can produce metal products that meet the GB/T 699 standard and offer high cost performance. These products can be used in stamping dies, cutting tools, fixtures, etc.
Key Properties
Carbon content 0.45% | hardened hardness HRC 50-55 | wear resistance coefficient 0.8
Advantages
High cost-effective mold steel | excellent cutting performance | GB/T 699 standard
Processing Purpose
Laser-cut 45# tool steel stamping dies, quenched 45# tool steel cutting tools, precision-ground 45# tool steel fixtures
Classic Case
Laser-cut and quenched 45# tool steel sheet metal punching dies
Processing Method
Laser cutting → vacuum quenching → precision grinding
Processing Characteristics
Reserve 0.2% quenching deformation allowance
Product Advantages
Blade life 100,000 punches (SPCC 1.5mm)
High strength steel (HSS)
Mingli Metal offers HSS type high-strength steel as an option. Through processing techniques such as fiber laser cutting, hot forming, and riveting, we can produce metal products with a tensile strength of ≥700MPa, which are the preferred choice for lightweight applications. These products can be used in automotive anti-collision beams, safes, military product boxes, etc.
Key Properties
Tensile strength ≥700MPa | yield strength ratio 0.85-0.95 | rebound Angle <3°
Advantages
30% thinner while maintain strength | Excellent impact energy absorption | Light weight first choice
Processing Purpose
Fiber laser-cut HSS high-strength steel automotive anti-collision beams, hot-formed HSS high-strength steel safes, riveted HSS high-strength steel military product boxes
Classic Case
Fiber laser-cut and hot-formed HSS high-strength steel electric vehicle battery trays
Processing Method
Fiber laser cutting → thermoforming → SPR riveting
Processing Characteristics
It needs a press above 1000T to form
Product Advantages
40% weight loss, passed ECE R94 crash test
Product Display
Frequently Asked Questions (FAQ)
What standards and grades do Mingli Metal's hot rolled plates meet?
Our Q235B hot-rolled steel plates meet ASTM A36 grade standards through precise processing techniques like laser cutting, bending forming, and argon arc welding, offering cost-effective structural performance.
How does the SPCC cold rolled sheet perform in terms of precision and corrosion resistance?
SPCC sheets provide high dimensional accuracy of ±0.1mm and a smooth surface suitable for electroplating. They feature an electro-galvanized surface treatment that guarantees no corrosion for 96 hours in salt spray testing, adhering to the IEC 61439 standard.
What is the expected outdoor lifespan of the SGCC hot-dip galvanized sheets?
SGCC sheets have an outdoor lifespan of over 20 years without needing spray anticorrosion. They feature a zinc layer weight of 60-180g/㎡, self-repair properties, and conform to the JIS G3302 standard with an IP67 protection class.
What are the benefits of using Q355 low alloy steel over standard Q235?
Q355 low alloy steel provides a weight reduction of approximately 20% compared to Q235 while offering a superior yield strength of ≥355MPa. It allows welding without preheating and meets the EN 10025 S355 standard.
What hardness levels can be achieved with 45# tool steel?
Through vacuum quenching and fine grinding, our 45# tool steel achieves a hardened hardness of HRC 50-55. It provides excellent cutting performance and a long blade life of up to 100,000 punches on 1.5mm SPCC sheets.
Why is High Strength Steel (HSS) preferred for lightweight applications?
HSS features a high tensile strength of ≥700MPa, allowing components to be 30% thinner while maintaining structural integrity. It achieves a 40% weight reduction and has successfully passed the ECE R94 crash test for safety.