010203
Professional Custom Steel Fabrication Factory in China - Quality Suppliers for Automotive Parts and Machinery Frames
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 grade standards do Mingli Metal's steel plate products meet?
Our different steel options meet various international standards, including ASTM A36 for Q235B hot-rolled plate, IEC 61439 for SPCC cold-rolled sheets, JIS G3302 for SGCC hot-dip galvanized sheet, and EN 10025 S355 for Q355 low alloy steel.
How long is the outdoor lifespan of SGCC hot-dip galvanized sheets?
SGCC hot-dip galvanized sheets feature a zinc layer weight of 60-180g/㎡ and require no spray anti-corrosion, providing an outdoor lifespan of up to 20 years or more.
What are the main advantages of choosing Q355 low alloy steel over Q235B?
Q355 low alloy steel offers a higher yield strength (≥355MPa) and provides up to a 20% weight reduction compared to Q235B. Additionally, it allows for welding without preheating, making it ideal for structural applications like crane booms and wind power towers.
What precautions should be taken when processing SGCC hot-dip galvanized sheets?
It is recommended to avoid welding during the processing of SGCC sheets to prevent zinc layer porosity. Instead, we utilize die punching, riveting assembly, and local zinc patching to maintain structural and protective integrity.
Why is High Strength Steel (HSS) suitable for lightweight designs?
HSS has a tensile strength of ≥700MPa, which allows for a 30% reduction in thickness while maintaining the same structural strength. It achieves a 40% overall weight loss and has passed the ECE R94 crash test, making it the premier choice for automotive and protective casings.