JIS SPHD Nonresulfurized Carbon Steel Foil/Strip

JIS SPHD Nonresulfurized Carbon Steel Foil Product Information -:- For detailed product information, please contact sales. -: JIS SPHD Nonresulfurized Carbon Steel Foil Synonyms -:- For detailed product information, please contact sales. -:

JIS SPHD Nonresulfurized Carbon Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Name:** JIS SPHD Nonresulfurized Carbon Steel, Hot Rolled (Drawing Quality) **Overview** JIS SPHD is a **drawing quality, nonresulfurized, low-carbon steel** specified in the Japanese Industrial Standards (JIS). As part of the commercial hot-rolled steel family, it offers **superior ductility and more consistent formability** compared to the basic SPHC grade. The "D" in SPHD stands for **Drawing**, indicating its enhanced suitability for more demanding cold-forming operations, particularly pressing and drawing. Like SPHC, it is characterized by its nonresulfurized chemistry, meaning it has controlled, low sulphur content. SPHD is a versatile, formability-focused steel used in applications where the material must undergo significant plastic deformation without failure, and where a higher level of consistency in properties is desired over SPHC. **Key International Standards & Designation** * **Primary Standard:** **JIS G 3131:2022** - Hot-rolled mild steel plate, sheet and strip. * **Grade Designation:** **SPHD** * **S:** Steel (Kō). * **P:** Plate (板, Ita). * **H:** Hot rolled (熱間圧延, Nekkan Atsuen). * **D:** **Drawing** quality. * **Quality Hierarchy:** SPHD represents an intermediate quality level between **SPHC (Commercial)** and **SPHE (Extra-Deep Drawing)**. It provides a better balance of consistent formability and cost than SPHE. * **Common International Equivalents:** * **ASTM:** **A620** (Drawing Quality, Hot-Rolled Sheet) is a close functional equivalent. Also comparable to **SAE 1006** with drawing quality controls. * **DIN/EN:** **DC03** (cold-rolled equivalent) or **DD11** (hot-rolled equivalent, drawing quality). * **GB/T:** **SPHD** (directly adopted designation) or **08Al** (for deep drawing applications). **Chemical Composition (Ladle Analysis, % by weight, typical/guaranteed ranges for SPHD)** Chemistry is controlled more tightly than SPHC to ensure formability. * **Carbon (C):** **≤ 0.10%** (Very low, maximizes ductility). * **Manganese (Mn):** **≤ 0.50%** (Low and controlled). * **Phosphorus (P):** **≤ 0.040%** (Tighter than SPHC for better formability). * **Sulphur (S):** **≤ 0.035%** (Lower than SPHC, contributing to better edge formability and ductility - this is the "nonresulfurized" characteristic). * **Note:** Some mills may offer a narrower compositional range or apply microalloying (e.g., Ti, Nb) for better control of aging and grain size. **Physical & Mechanical Properties (Typical for hot-rolled, drawing quality)** While JIS G 3131 does not mandate guaranteed mechanical properties for SPHC/SPHD/SPHE, SPHD as a drawing quality grade is typically supplied with **agreed-upon or typical mechanical properties** to ensure performance in forming dies. * **Yield Strength (YP):** **≈ 160 - 220 MPa** (Tends to be lower and more consistent than SPHC). * **Tensile Strength (TS):** **≈ 270 - 350 MPa**. * **Elongation (El):** **≥ 35% - 42%** (Typically guaranteed minimums are agreed upon; values are higher and more consistent than SPHC). * **r-value (Plastic Strain Ratio):** May be reported or targeted by mills (e.g., typical average >1.0) to indicate drawing performance. * **n-value (Strain Hardening Exponent):** May also be controlled for consistent forming behavior. **Product Features** 1. **Enhanced & Consistent Formability:** The primary feature. Controlled chemistry and processing result in higher, more uniform elongation and better performance in **moderate to severe drawing, stretching, and forming** operations compared to SPHC. Reduces the risk of splitting or cracking in complex parts. 2. **Good Surface for Forming:** While still supplied with mill scale, the substrate is more homogeneous, leading to more consistent behavior in presses. 3. **Good Weldability:** Excellent weldability due to very low carbon content. 4. **Non-Aging or Stabilized Options:** Often available as **"Stabilized"** (e.g., with Titanium or Niobium treatment) to minimize yield point elongation and prevent stretcher strain marks (Lüders lines) during forming, providing a better surface finish on formed parts. **Typical Applications** SPHD is used for components that require more reliable forming than SPHC can guarantee. * **Automotive Components:** **Inner door panels, wheel housings, seat frames, brackets, and other moderately complex pressed parts**. * **Appliance & Furniture:** **Washing machine tubs, refrigerator liners, cabinet parts, and furniture frames** requiring deep draws or complex bends. * **General Metal Goods:** **Electrical enclosures, switch boxes, containers, and deeper-drawn housings**. * **Pipe & Profiles:** As feedstock for **welded tubes and roll-formed sections** where consistent ductility is key. **Available Forms & Processing** * **Forms:** **Hot-rolled sheets and strips** in coils, commonly used as feedstock for pickling and cold rolling, or supplied directly for hot-rolled forming. * **Surface Condition:** **Hot-rolled, with mill scale**. It is the preferred feedstock for **pickling lines** to produce high-quality Pickled & Oiled (PO) or hot-rolled annealed (HRA) material for critical forming. * **Processing:** **Excellent for pressing, deep drawing, stamping, and bending.** Can be welded and cut easily. --- **Critical Selection & Procurement Note** * **Formability-Driven Selection:** Choose SPHD over SPHC when part design involves **significant stretching, drawing, or complex multi-stage forming** where SPHC might exhibit inconsistent behavior or higher scrap rates. * **Agreed Properties:** Unlike structural steels, procurement often involves agreeing on **typical or minimum mechanical properties (especially Elongation)** with the supplier. These should be documented. * **Stabilized vs. Non-Stabilized:** For parts requiring a smooth, defect-free surface after forming (without Lüders lines), specify **"Stabilized" SPHD**. This may involve a slight cost premium. * **Surface Consideration:** For critical formed parts, the hot-rolled mill scale surface is often removed via pickling prior to forming. * **Not a Structural Grade:** Like SPHC, it is not a property-guaranteed structural steel. Do not use it for load-bearing calculations where minimum yield strength is required. * **Procurement Specification:** Clearly state **JIS G 3131 SPHD**, thickness, width, and any special requirements (e.g., stabilized, agreed elongation minimum, coil weight). -:- For detailed product information, please contact sales. -: JIS SPHD Nonresulfurized Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5846 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: JIS SPHD Nonresulfurized Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of JIS SPHD Nonresulfurized Carbon Steel Foil -:- For detailed product information, please contact sales. -: Chemical Identifiers JIS SPHD Nonresulfurized Carbon Steel Foil -:- For detailed product information, please contact sales. -:

Packing of JIS SPHD Nonresulfurized Carbon Steel Foil/Strip -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Foil/Strip drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2317 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition