Stainless Steel Coil (available in cold-rolled and hot-rolled conditions) is an indispensable primary raw material widely specified across metal stamping, automotive manufacturing, architectural cladding, kitchenware production, welded pipe manufacturing, and chemical processing equipment. Offering outstanding corrosion resistance, high tensile strength, superior surface quality, and excellent formability for deep drawing and bending, stainless steel coils provide high-efficiency continuous feeding for automated manufacturing lines.

As a leading direct factory supplier, XQJ Metal (xqjmetal.com) manufactures and supplies a comprehensive inventory of premium stainless steel coils across austenitic, ferritic, and duplex grades—including 304, 304L, 316, 316L, 201, 430, 310S, and 2205. Produced in full compliance with global quality standards (ASTM A240, EN 10088, JIS G4305), our stainless steel coils feature precise gauge control, custom slitting capabilities, and tailored surface finishes.

Popular Alloy Grades & Surface Finishes:

• 304 & 304L Stainless Steel Coil: The ultimate general-purpose austenitic stainless steel coil offering excellent corrosion resistance, high ductility, and superior weldability. Ideal for deep-drawn kitchenware, appliance panels, tube welding, and industrial stampings.

• 316 & 316L Stainless Steel Coil: Marine-grade molybdenum-alloyed coil engineered for extreme corrosion resistance against chlorides, acids, and harsh chemical environments. Essential for marine hardware, pharmaceutical vessels, chemical storage tanks, and coastal architecture.

• 201 Stainless Steel Coil: High-manganese cost-effective alternative providing higher yield strength and good formability. Widely specified for indoor decorative trim, kitchen accessories, hose clamps, and budget-conscious metal fabrication.

• 430 Stainless Steel Coil: Magnetic ferritic stainless steel coil featuring high thermal conductivity, oxidation resistance, and excellent polished aesthetics. Popular for refrigerator doors, dishwasher interiors, stove trim, and automotive decorative moldings.

Technical Specifications & Parameters:

• Material Alloy Grades: Austenitic (304, 304L, 316, 316L, 321, 310S), Ferritic (430, 409), Duplex (2205, 2507)

• Processing Condition: Cold Rolled (CR) / Hot Rolled (HR)

• Thickness Range: 0.3 mm – 6.0 mm (Cold Rolled) / 3.0 mm – 16.0 mm (Hot Rolled)

• Width Options: 1000 mm, 1219 mm (4 ft), 1500 mm (5 ft), Custom Precision Slit Widths (from 20 mm)

• Coil Inner Diameter (ID): 508 mm (20 in) / 610 mm (24 in)

• Surface Finishes: 2B (Cold Rolled), BA (Bright Annealed), No.1 (Hot Rolled), No.4 Satin / Brushed, Hairline (HL), 8K Mirror, Embossed

• Processing Services: Precision Rotary Slitting, Cut-to-Length (Flattened Sheets), Edge Conditioning (Slit/Mill Edge), Paper Interleaved, Laser PVC/PE Protective Film

• Quality Standards: ASTM A240, ASTM A480, EN 10088-2, JIS G4305, ISO 9001

Frequently Asked Questions (FAQ):

Q: What is the primary difference between 2B finish and BA finish on stainless steel coils?

A: 2B finish is a smooth, slightly reflective, cold-rolled mill finish achieved through heat treatment and pickling, followed by a light pinch pass. BA (Bright Annealed) finish is heat-treated in a controlled atmosphere furnace, resulting in a mirror-like, highly reflective, and bright surface appearance preferred for decorative applications.

Q: Does XQJ Metal offer precision coil slitting and custom cut-to-length processing?

A: Yes, we operate high-speed rotary slitting lines and automatic cut-to-length leveling machines. We can slit wide master coils into narrow strips (down to 20 mm width) or flatten and shear coils into precise sheet sizes according to your exact production requirements.

Q: Do you supply official Mill Test Certificates (MTC) and quality inspection reports?

A: Yes, every XQJ Metal stainless steel coil shipment is supplied with an official EN 10204 3.1 Mill Test Certificate detailing heat numbers, chemical composition, tensile strength, yield strength, hardness, and elongation test values.

Q: What is the MOQ and standard delivery lead time for wholesale stainless steel coil orders?

A: Our standard MOQ for stock grades and master coil dimensions is 1 to 3 metric tons. Standard delivery lead time for in-stock coils is 5–7 business days, while custom slitted, bright annealed, or special alloy orders typically require 10–15 business days.