Name: China ST14 Material Cold-rolled Steel Sheet Manufacturers Suppliers Factory - Gnee Steel
Brand: GNEE
SKU: 300383124

What is ST14 material?

ST14 cold-rolled steel sheet is a high-quality, deep-drawing grade cold-rolled carbon steel sheet, engineered to deliver exceptional formability, consistent mechanical properties, and superior surface finish. As a specialized cold-rolled steel product compliant with DIN EN 10130 standards, ST14 is the material of choice for complex deep drawing, stamping, and forming applications across automotive, home appliance, electronics, and precision hardware industries.

At GNEE STEEL, we provide premium ST14 cold-rolled steel sheets with tight dimensional tolerances, reliable performance, and customizable specifications to meet the most demanding manufacturing requirements.

ST14 cold-rolled steel sheet is a low-carbon, high-plasticity cold-rolled steel grade, designed specifically for intricate forming operations where ordinary steel grades would crack or wrinkle. Its balanced chemical composition and advanced cold-rolling process deliver a unique combination of ductility, strength, and surface quality.

Core Advantages

Exceptional Deep Drawability: Ultra-high elongation (≥36%) and optimal r-value (≥1.5) enable flawless deep drawing of complex shapes without defects

Superior Surface Quality: Smooth, clean, and defect-free surface finish, ideal for painting, electroplating, and coating applications

Precision Dimensional Tolerance: Tight thickness, width, and flatness tolerances ensure consistent performance in automated production lines

Excellent Mechanical Uniformity: Stable yield and tensile strength across entire coils/sheets, minimizing production rejects

Outstanding Weldability: Compatible with all common welding techniques, supporting diverse fabrication processes

Versatile Formability: Performs exceptionally well in bending, flanging, stretching, and complex stamping operations

Chemical & Mechanical Properties

Chemical Composition (WT. %)

Element	C	Si	Mn	P	S	Al (Total)	N
Min	-	-	-	-	-	0.025	-
Max	0.08	0.03	0.40	0.020	0.030	0.07	0.005

Mechanical Properties

Property	Yield Strength (Rp0.2)	Tensile Strength (Rm)	Elongation (A5, 80mm)	Hardness	r-value (Plastic Strain Ratio)	n-value (Work Hardening Index)
Standard	140-220 MPa	270-350 MPa	≥36%	≤57 HRB	≥1.5	≥0.20
Typical	150-190 MPa	290-320 MPa	38-42%	45-52 HRB	1.6-1.9	0.22-0.25

Request Latest Steel Price Today

Available Specifications

Standard Dimensions

Thickness Range: 0.3mm – 2.5mm

Width Range: 800mm – 1830mm (standard: 1000mm, 1250mm, 1500mm)

Length: Cut-to-length sheets (2000mm, 2500mm, 3000mm) or coils

ID (Coil Inner Diameter): 508mm (20"), 610mm (24")

Surface Quality

FC: High-quality finish, suitable for visible parts and coating

FB: General-quality finish, ideal for forming and non-visible components

Edge Condition

Slit edge (mill edge)

Deburred edge

Square cut edge

Applications of ST14 Cold-rolled Steel Sheet

ST14 cold-rolled steel sheet's exceptional formability and quality make it indispensable for manufacturing products requiring complex shapes and high precision:

Automotive Industry

Body Panels: Inner door panels, hood inner parts, trunk lids, and floor reinforcements

Chassis Components: Complex structural brackets, seat frames, and safety-related parts

Interior Parts: Instrument panel substrates, door inner structures, and trim components

Automotive Industry

Automotive Industry

Home Appliances

White Goods: Refrigerator inner/outer casings, washing machine drums, dishwasher components

Small Appliances: Microwave oven cavities, coffee maker housings, and precision metal parts

Electronics: TV/monitor backplates, electrical enclosures, and precision chassis

Home Appliances

Home Appliances

Precision Hardware & General Engineering

Metal Furniture: Chair components, table frames, and decorative hardware

Electrical Equipment: Switchgear cabinets, distribution boxes, and motor housings

Decorative & Daily Use: Kitchenware, metal containers, and high-quality metal casings

Precision Hardware General Engineering

Precision Hardware & General Engineering

GNEE's partners

GNEE's Partners

Frequently Asked Questions (FAQ)

1. What is the difference between ST14 and other cold-rolled steel grades (ST12, ST13)?

ST14 is a deep-drawing grade with higher plasticity (elongation ≥36%) compared to ST12 (commercial grade, elongation ≥28%) and ST13 (drawing grade, elongation ≥32%). ST14 offers superior formability for the most complex deep drawing applications.

2. Is ST14 cold-rolled steel sheet equivalent to other international grades?

Yes. ST14 (DIN) is equivalent to DC04 (EN), SPCE (JIS), and 08AL (Chinese GB) grades, sharing similar chemical composition and mechanical properties.

3. What thickness and width ranges are available for ST14 cold-rolled steel sheet?

We supply ST14 cold-rolled steel sheet in thicknesses from 0.3mm to 2.5mm and widths from 800mm to 1830mm. Standard widths are 1000mm, 1250mm, and 1500mm, with custom sizes available.

4. What surface finishes are available for ST14 cold-rolled steel sheet?

We offer two standard surface qualities: FC (high finish) for visible components and coating applications, and FB (general finish) for standard forming operations.

5. Can ST14 cold-rolled steel sheet be welded?

Absolutely. ST14's low carbon content and controlled chemistry provide excellent weldability using all common welding methods, including MIG, TIG, resistance, and spot welding.

6. What is the typical delivery time for ST14 cold-rolled steel sheet orders?

For in-stock items, delivery is 7-15 days worldwide. Custom or large orders typically require 15-30 days depending on specifications and quantity.

7. Does ST14 cold-rolled steel sheet require special storage conditions?

ST14 should be stored in dry, ventilated conditions to prevent moisture-induced oxidation. We recommend indoor storage with proper packaging (anti-rust paper, plastic film) to maintain surface quality.