{"id":707,"date":"2026-04-29T20:51:24","date_gmt":"2026-04-29T12:51:24","guid":{"rendered":"https:\/\/metalstampingparts.ltd\/steel-stamping-parts-guide\/"},"modified":"2026-06-09T17:06:13","modified_gmt":"2026-06-09T09:06:13","slug":"steel-stamping-parts-guide","status":"publish","type":"post","link":"https:\/\/metalstampingparts.ltd\/fil\/steel-stamping-parts-guide\/","title":{"rendered":"Steel Stamping Parts: Grade Selection, Design Tips & Manufacturing Guide"},"content":{"rendered":"

Steel Stamping Parts: Grade Selection, Design Tips & Manufacturing Guide<\/h1>\n

Steel stamping parts are metal components formed from flat steel sheet or coil by pressing, blanking, bending, or drawing in a stamping press. They appear in virtually every manufactured product \u2014 from automotive body panels and structural brackets to appliance housings and industrial equipment. Selecting the right steel grade is the single most important decision in steel stamping, because it determines formability, strength, cost, weldability, and surface finish.<\/p>\n

\"Carbon<\/figure>\n

This guide walks through more than 20 common steel grades used in stamping, compares hot-rolled and cold-rolled sheet, addresses the challenges of high-strength steel, and covers surface treatment options and design-for-manufacturing (DFM) best practices. Metal Stamping Parts Ltd processes thousands of tons of steel annually across automotive, industrial, and consumer-product applications.<\/p>\n

\n

Steel Grade Selection for Stamping<\/h2>\n

Choosing the correct steel grade requires balancing mechanical properties, formability, surface quality, and cost. The tables below cover the most widely used grades in the global stamping industry.<\/p>\n

Cold-Rolled Steel Grades (JIS \/ EN \/ ASTM)<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
Grade (JIS)<\/th>\nEN Equivalent<\/th>\nASTM Equivalent<\/th>\nC (%)<\/th>\nMn (%)<\/th>\nYield Strength (MPa)<\/th>\nTensile Strength (MPa)<\/th>\nElongation (%)<\/th>\nr-value<\/th>\nApplication<\/th>\n<\/tr>\n<\/thead>\n
SPCC<\/td>\nDC01<\/td>\nA1008 CS Type B<\/td>\n\u22640.12<\/td>\n\u22640.50<\/td>\n140\u2013280<\/td>\n270\u2013410<\/td>\n\u226537<\/td>\n\u2014<\/td>\nGeneral-purpose panels, brackets<\/td>\n<\/tr>\n
SPCD<\/td>\nDC03<\/td>\nA1008 CS Type A<\/td>\n\u22640.10<\/td>\n\u22640.45<\/td>\n140\u2013260<\/td>\n270\u2013390<\/td>\n\u226539<\/td>\n\u22651.3<\/td>\nDrawing applications, shallow draws<\/td>\n<\/tr>\n
SPCE<\/td>\nDC04<\/td>\nA1008 DS Type A<\/td>\n\u22640.08<\/td>\n\u22640.40<\/td>\n120\u2013240<\/td>\n270\u2013370<\/td>\n\u226541<\/td>\n\u22651.6<\/td>\nDeep drawing, automotive inner panels<\/td>\n<\/tr>\n
SPCF<\/td>\nDC05<\/td>\nA1008 DDS<\/td>\n\u22640.06<\/td>\n\u22640.35<\/td>\n110\u2013220<\/td>\n270\u2013350<\/td>\n\u226543<\/td>\n\u22651.9<\/td>\nExtra-deep drawing, complex shapes<\/td>\n<\/tr>\n
SPCG<\/td>\nDC06<\/td>\nA1008 EDDS<\/td>\n\u22640.02<\/td>\n\u22640.25<\/td>\n100\u2013200<\/td>\n270\u2013330<\/td>\n\u226545<\/td>\n\u22652.1<\/td>\nUltra-deep drawing, exposed panels<\/td>\n<\/tr>\n
SPFH490<\/td>\n\u2014<\/td>\nA1011 HSLA 50<\/td>\n\u22640.12<\/td>\n\u22641.60<\/td>\n\u2265325<\/td>\n\u2265490<\/td>\n\u226523<\/td>\n\u2014<\/td>\nStructural parts, seat frames<\/td>\n<\/tr>\n
SPFH540<\/td>\n\u2014<\/td>\nA1011 HSLA 60<\/td>\n\u22640.12<\/td>\n\u22641.80<\/td>\n\u2265355<\/td>\n\u2265540<\/td>\n\u226520<\/td>\n\u2014<\/td>\nChassis reinforcements<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Hot-Rolled Steel Grades<\/h3>\n\n\n\n\n\n\n\n\n\n\n
Grade (JIS)<\/th>\nEN Equivalent<\/th>\nC (%)<\/th>\nYield Strength (MPa)<\/th>\nTensile Strength (MPa)<\/th>\nElongation (%)<\/th>\nApplication<\/th>\n<\/tr>\n<\/thead>\n
SPHC<\/td>\nDD11 \/ HR1<\/td>\n\u22640.15<\/td>\n\u2265205<\/td>\n\u2265270<\/td>\n\u226527<\/td>\nGeneral forming, non-critical parts<\/td>\n<\/tr>\n
SPHD<\/td>\nDD12 \/ HR2<\/td>\n\u22640.10<\/td>\n\u2014<\/td>\n\u2265270<\/td>\n\u226530<\/td>\nDrawing applications<\/td>\n<\/tr>\n
SPHE<\/td>\nDD13 \/ HR3<\/td>\n\u22640.06<\/td>\n\u2014<\/td>\n\u2265270<\/td>\n\u226533<\/td>\nDeep drawing, automotive structural<\/td>\n<\/tr>\n
SS400<\/td>\nS235JR<\/td>\n\u22640.22<\/td>\n\u2265205<\/td>\n400\u2013510<\/td>\n\u226521<\/td>\nStructural brackets, heavy-gauge parts<\/td>\n<\/tr>\n
SS490<\/td>\nS275JR<\/td>\n\u22640.25<\/td>\n\u2265245<\/td>\n490\u2013610<\/td>\n\u226519<\/td>\nHeavy-duty structural components<\/td>\n<\/tr>\n
SM490A<\/td>\nS355JR<\/td>\n\u22640.20<\/td>\n\u2265275<\/td>\n490\u2013610<\/td>\n\u226522<\/td>\nStructural members requiring weldability<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Advanced High-Strength Steel (AHSS) Grades<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Grade<\/th>\nType<\/th>\nYield (MPa)<\/th>\nUTS (MPa)<\/th>\nElongation (%)<\/th>\nBend Radius (\u00d7t)<\/th>\nApplication<\/th>\n<\/tr>\n<\/thead>\n
DP590<\/td>\nDual Phase<\/td>\n330\u2013410<\/td>\n\u2265590<\/td>\n\u226520<\/td>\n1.0<\/td>\nCrash-resistant brackets, reinforcements<\/td>\n<\/tr>\n
DP780<\/td>\nDual Phase<\/td>\n440\u2013560<\/td>\n\u2265780<\/td>\n\u226514<\/td>\n1.5<\/td>\nB-pillars, bumper beams<\/td>\n<\/tr>\n
DP980<\/td>\nDual Phase<\/td>\n600\u2013740<\/td>\n\u2265980<\/td>\n\u226510<\/td>\n2.5<\/td>\nStructural reinforcements<\/td>\n<\/tr>\n
DP1180<\/td>\nDual Phase<\/td>\n850\u20131050<\/td>\n\u22651,180<\/td>\n\u22655<\/td>\n4.0<\/td>\nUltra-high-strength brackets<\/td>\n<\/tr>\n
TRIP590<\/td>\nTRIP<\/td>\n380\u2013460<\/td>\n\u2265590<\/td>\n\u226524<\/td>\n1.0<\/td>\nEnergy-absorbing structures<\/td>\n<\/tr>\n
TRIP780<\/td>\nTRIP<\/td>\n450\u2013550<\/td>\n\u2265780<\/td>\n\u226518<\/td>\n1.5<\/td>\nCrash structures<\/td>\n<\/tr>\n
CP780<\/td>\nComplex Phase<\/td>\n620\u2013750<\/td>\n\u2265780<\/td>\n\u226510<\/td>\n2.0<\/td>\nChassis reinforcements<\/td>\n<\/tr>\n
CP1180<\/td>\nComplex Phase<\/td>\n900\u20131100<\/td>\n\u22651,180<\/td>\n\u22655<\/td>\n3.5<\/td>\nAnti-intrusion beams<\/td>\n<\/tr>\n
MS1200<\/td>\nMartensitic<\/td>\n950\u20131150<\/td>\n\u22651,200<\/td>\n\u22654<\/td>\n5.0<\/td>\nBumper reinforcements, door beams<\/td>\n<\/tr>\n
FB590<\/td>\nFerrite-Bainite<\/td>\n380\u2013480<\/td>\n\u2265590<\/td>\n\u226518<\/td>\n1.0<\/td>\nWheels, chassis parts<\/td>\n<\/tr>\n
TWIP980<\/td>\nTWIP<\/td>\n400\u2013500<\/td>\n\u2265980<\/td>\n\u226550<\/td>\n0.5<\/td>\nFuture lightweight structures<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Stainless Steel Grades for Stamping<\/h3>\n\n\n\n\n\n\n\n\n\n
Grade<\/th>\nType<\/th>\nYield (MPa)<\/th>\nUTS (MPa)<\/th>\nElongation (%)<\/th>\nMagnetic?<\/th>\nApplication<\/th>\n<\/tr>\n<\/thead>\n
SUS304<\/td>\nAustenitic<\/td>\n205<\/td>\n520<\/td>\n\u226540<\/td>\nNo<\/td>\nAppliance panels, food equipment<\/td>\n<\/tr>\n
SUS301<\/td>\nAustenitic<\/td>\n205\u2013510<\/td>\n520\u20131,270<\/td>\n\u226540\u201310<\/td>\nNo<\/td>\nSprings, clips (work-hardens)<\/td>\n<\/tr>\n
SUS430<\/td>\nFerrite<\/td>\n205<\/td>\n450<\/td>\n\u226522<\/td>\nYes<\/td>\nDecorative trim, exhaust components<\/td>\n<\/tr>\n
SUS410<\/td>\nMartensitic<\/td>\n205<\/td>\n440<\/td>\n\u226520<\/td>\nYes<\/td>\nCutlery, valve parts<\/td>\n<\/tr>\n
SUS316L<\/td>\nAustenitic<\/td>\n175<\/td>\n480<\/td>\n\u226540<\/td>\nNo<\/td>\nMarine, chemical, medical<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

For more information on stainless steel stamping capabilities, see our stainless steel stamping<\/a> page.<\/p>\n

\n

Hot-Rolled vs Cold-Rolled Steel: Which to Choose?<\/h2>\n

The rolling process fundamentally changes steel’s surface quality, dimensional accuracy, and mechanical behavior. The comparison below helps you select the right starting material for your steel stamping<\/a> application.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Property<\/th>\nHot-Rolled (HR)<\/th>\nCold-Rolled (CR)<\/th>\n<\/tr>\n<\/thead>\n
Surface quality<\/strong><\/td>\nMill scale, rough (Ra 3\u20138 \u00b5m)<\/td>\nSmooth, clean (Ra 0.5\u20131.5 \u00b5m)<\/td>\n<\/tr>\n
Thickness tolerance<\/strong><\/td>\n\u00b10.10\u20130.15 mm<\/td>\n\u00b10.02\u20130.05 mm<\/td>\n<\/tr>\n
Width tolerance<\/strong><\/td>\n\u00b11.0\u20132.0 mm<\/td>\n\u00b10.2\u20130.5 mm<\/td>\n<\/tr>\n
Typical gauge range<\/strong><\/td>\n1.6\u201312.0 mm<\/td>\n0.4\u20133.2 mm<\/td>\n<\/tr>\n
Yield strength<\/strong><\/td>\nLower (as-rolled)<\/td>\nHigher (work-hardened)<\/td>\n<\/tr>\n
Elongation<\/strong><\/td>\nHigher<\/td>\nLower<\/td>\n<\/tr>\n
Cost per ton<\/strong><\/td>\n15\u201325% lower<\/td>\nHigher<\/td>\n<\/tr>\n
Best for<\/strong><\/td>\nStructural parts, heavy brackets, non-visible components<\/td>\nVisible panels, precision parts, shallow-to-medium draws<\/td>\n<\/tr>\n
Typical stamping operations<\/strong><\/td>\nBlanking, bending, forming<\/td>\nBlanking, drawing, forming, piercing<\/td>\n<\/tr>\n
Paint adhesion<\/strong><\/td>\nRequires descaling<\/td>\nExcellent after cleaning<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Rule of thumb<\/strong>: Use cold-rolled for anything visible, dimensionally critical, or requiring drawing. Use hot-rolled for structural parts where surface finish is not critical and gauge exceeds 3 mm.<\/p>\n

\n

High-Strength Steel Stamping: Challenges and Solutions<\/h2>\n

As automotive lightweighting drives adoption of AHSS grades, stampers face new challenges that traditional mild-steel tooling and processes cannot handle.<\/p>\n

Challenge 1: Excessive Springback<\/h3>\n

High-strength steels have yield-to-tensile ratios of 0.65\u20130.90 (vs. 0.50\u20130.60 for mild steel), causing significant elastic recovery after forming.<\/p>\n

Solutions:<\/strong>
\n– Overbend by 2\u20135\u00b0 depending on grade (trial-and-error or FEA-simulated compensation).
\n– Use rotary bending tools that control material flow through the bend zone.
\n– Apply servo presses with programmable dwell at bottom dead center to stress-relieve the part in the die.
\n– Design parts with stiffening beads or embossments to lock in shape.<\/p>\n

Challenge 2: Accelerated Tool Wear<\/h3>\n

Hard microstructures (martensite, bainite) in AHSS abrade tool surfaces 3\u201310\u00d7 faster than mild steel.<\/p>\n

Solutions:<\/strong>
\n– Use D2 or DC53 tool steel with PVD coating (TiAlN or CrN) for moderate volumes.
\n– Switch to carbide inserts or PM (powder metallurgy) tool steels (ASP-23, VANADIS 4E) for high-volume production.
\n– Increase die clearance to 10\u201312% of material thickness (vs. 5\u20137% for mild steel).
\n– Apply dry-film or high-pressure lubricants to reduce friction.<\/p>\n

Challenge 3: Welding Requirements<\/h3>\n

AHSS grades require careful welding parameter control to avoid heat-affected zone (HAZ) softening.<\/p>\n

Solutions:<\/strong>
\n– Use resistance spot welding with adaptive current control.
\n– Optimize electrode force and hold time for each grade.
\n– Consider laser welding for butt joints where HAZ control is critical.
\n– Validate weld strength per AWS D8.1M or OEM-specific standards.<\/p>\n

Challenge 4: Cracking at Tight Radii<\/h3>\n

DP and martensitic grades have limited elongation (4\u201314%), making tight-radius bends prone to cracking.<\/p>\n

Solutions:<\/strong>
\n– Design minimum bend radius \u2265 2\u00d7 material thickness for DP780; \u2265 4\u00d7 for DP1180.
\n– Orient bends perpendicular to the rolling direction when possible.
\n– Use warm forming (200\u2013300 \u00b0C) for the most demanding geometries.
\n– Consider tailored welded blanks \u2014 use AHSS only where strength is needed and mild steel in the formed zone.<\/p>\n

\n

Surface Treatment Options for Steel Stamping Parts<\/h2>\n

Surface treatment protects against corrosion, improves appearance, and enhances paint adhesion. The table below compares the four most common options for stamped steel parts.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Treatment<\/th>\nProcess<\/th>\nCoating Weight \/ Thickness<\/th>\nSalt Spray Resistance (hours)<\/th>\nPaint Adhesion<\/th>\nWeldability After Treatment<\/th>\nRelative Cost<\/th>\nTypical Application<\/th>\n<\/tr>\n<\/thead>\n
Electro-galvanized (EG)<\/strong><\/td>\nElectrodeposition of zinc<\/td>\n5\u201315 \u00b5m<\/td>\n200\u2013500<\/td>\nExcellent<\/td>\nGood<\/td>\nLow-Medium<\/td>\nAutomotive exposed panels<\/td>\n<\/tr>\n
Hot-dip galvanized (GI)<\/strong><\/td>\nImmersion in molten zinc<\/td>\n45\u201390 g\/m\u00b2 (both sides)<\/td>\n300\u20131,000<\/td>\nGood (after treatment)<\/td>\nFair<\/td>\nMedium<\/td>\nAppliance panels, HVAC, construction<\/td>\n<\/tr>\n
Phosphating (iron or zinc)<\/strong><\/td>\nChemical conversion<\/td>\n1\u20133 \u00b5m<\/td>\n50\u2013150<\/td>\nExcellent<\/td>\nGood<\/td>\nVery Low<\/td>\nPre-paint treatment for all steel parts<\/td>\n<\/tr>\n
Electro-coat (e-coat)<\/strong><\/td>\nElectrophoretic paint<\/td>\n15\u201325 \u00b5m<\/td>\n500\u20131,000<\/td>\nN\/A (is the paint)<\/td>\nPoor<\/td>\nMedium<\/td>\nAutomotive underbody, brackets<\/td>\n<\/tr>\n
Dacromet \/ Geomet<\/strong><\/td>\nZinc-aluminum flake<\/td>\n6\u201310 \u00b5m<\/td>\n500\u20131,000+<\/td>\nFair<\/td>\nFair<\/td>\nMedium-High<\/td>\nFasteners, suspension parts, high-corrosion<\/td>\n<\/tr>\n
Powder coat<\/strong><\/td>\nElectrostatic spray + bake<\/td>\n60\u201380 \u00b5m<\/td>\n1,000+<\/td>\nN\/A (is the finish)<\/td>\nN\/A<\/td>\nMedium<\/td>\nOutdoor equipment, furniture, enclosures<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Selection guide:<\/strong>
\n– For automotive Class A exposed surfaces: EG + e-coat + topcoat.
\n– For structural parts in corrosive environments: GI or Dacromet.
\n– For cost-sensitive interior brackets: phosphate + powder coat.
\n– For high-corrosion fasteners: Dacromet or Geomet.<\/p>\n

\n

DFM Tips for Steel Stamping Parts<\/h2>\n

Design-for-manufacturing principles reduce die cost, improve part quality, and shorten lead times. Apply these guidelines during the concept phase to avoid expensive die revisions later.<\/p>\n

Geometry Rules<\/h3>\n