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Carbon Steel Coil

Home > Product > Carbon Steel > Carbon Steel Coil > Q215 Carbon Steel Coil
Q215 Carbon Steel Coil

Product Introduction

Carbon Steel Coil Technical Specifications
SpecificationDetails
Common Grades & StandardsCommercial Quality (CQ, ASTM A366/A619): Good formability for general fabrication.
Drawing Quality (DQ, ASTM A620/A621): Superior ductility for deep drawing and severe forming.
Structural Quality (ASTM A36, A570 Gr. 50): For structural applications requiring specified mechanical properties.
High Strength Low Alloy (HSLA, ASTM A607, A715): Enhanced strength-to-weight ratio via micro-alloying.
JIS G3141 SPHC/SPHD/SPHE: Japanese standards for hot/cold rolled coils (SPHE for extra deep drawing).
Available ConditionsHot Rolled (HR): As-rolled at high temperature, with mill scale, for structural/industrial use.
Hot Rolled Pickled & Oiled (HRPO): Scale removed via acid pickling, then oiled for protection and weldability.
Cold Rolled (CR): Further rolled at room temperature, smooth surface, precise dimensions, higher strength.
Annealed (Full Hard, Half Hard, Quarter Hard, Soft): Cold rolled coils heat-treated to specific hardness/temper levels.
Thickness RangeHot Rolled Coil: 1.5 mm (0.059") to 25 mm (0.984")
Cold Rolled Coil: 0.3 mm (0.012") to 3.0 mm (0.118")
Ultra-Thin CR Coil: Down to 0.15 mm (0.006") for specialized applications.
Standard Width RangeNarrow Strip: 20 mm (0.79") to 300 mm (12")
Medium Width: 300 mm (12") to 1500 mm (59")
Wide Coil: 1500 mm (59") to 2000 mm (79")+
Coil ParametersInner Diameter (ID): 508 mm (20") or 610 mm (24") standard.
Outer Diameter (OD): Typically 1200 mm (47") to 1800 mm (71") maximum.
Coil Weight: 5,000 kg to 30,000 kg (standard), up to 40,000 kg for heavy gauge HR.
Key Mechanical Properties (Typical)ASTM A36 (HR): Yield: 250 MPa (36 ksi), Tensile: 400-550 MPa (58-80 ksi).
ASTM A570 Gr. 50 (HR): Yield: 345 MPa (50 ksi) min.
DQ SK (CR, Soft): Yield: 170-240 MPa, Tensile: 280-350 MPa, Elongation: 38-45%.
HSLA Gr. 50 (CR): Yield: 345 MPa (50 ksi) min, Tensile: 415 MPa (60 ksi) min.
Surface Finish (CR Coils)Matte Finish: Standard dull surface from rolling.
Bright Finish: Smoother, more reflective surface.
Galvanized (GI) / Galvannealed (GA): Zinc-coated for corrosion protection (separate product category).
Electro-Galvanized (EG): Thin zinc coating via electroplating.
Pre-Painted/Coated: Coil coated with primer, paint, or laminate.
Standard SpecificationsHot Rolled: ASTM A1011, ASTM A569 (CQ), JIS G3131 (SPHC).
Cold Rolled: ASTM A1008, ASTM A109, JIS G3141 (SPCC/SPCD/SPCE).
HSLA: ASTM A1008/A1011 with Grade designations (e.g., 45, 50, 60, 70).
Fabrication PropertiesFormability: Excellent for DQ and annealed CR coils; good for CQ and HR.
Weldability: Excellent for low-carbon grades; may require special procedures for HSLA.
Paintability: Good, may require surface preparation (cleaning, phosphating).
Primary ApplicationsAutomotive: Body panels, chassis components, structural parts, wheels.
Appliances: Washer/dryer drums, refrigerator liners, oven cavities.
Construction: Light structural members, roofing, wall panels, purlins.
Furniture & Storage: Shelving, cabinets, lockers, office furniture.
General Manufacturing: Stampings, enclosures, tubes, pipes, roll-formed sections.
Grade / StandardCommon Name / TypeThickness (mm)Width (mm)Coil Weight (kg)Inner Diameter (ID) mmCondition / Surface FinishKey Characteristics & Surface Finish
ASTM A1011 CS Type BCommercial Steel (CS) - Hot Rolled1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0900, 1219, 1524, 1800, 20005,000 - 30,000508, 610, 760Hot Rolled (HR), Pickled & Oiled (P&O), Mill FinishGood formability for moderate bending, economical
ASTM A1011 DDS Type BDrawing Steel (DS) - Cold Rolled0.5, 0.7, 0.9, 1.2, 1.5, 2.0600, 900, 1219, 15243,000 - 20,000508, 610Cold Rolled (CR), Annealed, OiledExcellent deep drawing quality, smooth surface
ASTM A1008 SS GradesStructural Steel (SS) - Hot Rolled2.5, 3.0, 4.0, 5.0, 6.0, 8.0, 10.01219, 1524, 1800, 200010,000 - 35,000508, 610, 760Hot Rolled (HR), As-RolledHigher strength than CS grades, good weldability
ASTM A653 / A1008Galvanized Steel (GI, EG)0.4, 0.6, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5600, 900, 1219, 15243,000 - 25,000508, 610Hot-Dipped Galvanized (HDG), Electro-Galvanized (EG), Spangle/RegularZinc coating for corrosion resistance, paintable
ASTM A1008 / A109Cold Rolled (CR) Full Hard0.3, 0.5, 0.7, 0.9, 1.2300, 600, 900, 12191,000 - 15,000508, 610Cold Rolled, Full Hard TemperHigh yield strength, minimal elongation, for simple bending
ASTM A1011 HSLAS Gr. 50High-Strength Low-Alloy (HSLA)1.8, 2.3, 2.8, 3.5, 4.51219, 1524, 18008,000 - 25,000508, 610Hot Rolled, Pickled & OiledHigher strength-to-weight than CS, good formability & weldability
ASTM A366 / A619Electrolytic Tinplate (ETP)0.15, 0.18, 0.20, 0.23, 0.28600, 700, 800, 9003,000 - 12,000400, 508Cold Rolled, Tin Coated (Electrolytic)Excellent corrosion resistance, solderable, decorative
EN 10111 DD11 / DC01Cold Forming Steel (European)0.7, 1.0, 1.5, 2.0, 2.51000, 1250, 15005,000 - 20,000508, 610Cold Rolled, AnnealedDeep drawing quality per European standards, similar to DS
ASTM A1008 CR, GalvannealedGalvannealed Steel (GA)0.6, 0.8, 1.0, 1.2, 1.5, 2.0900, 1219, 15244,000 - 20,000508, 610Cold Rolled, Galvannealed (Zn-Fe alloy coating)Excellent paint adhesion & weldability, corrosion resistant

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