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GRADES.
Chemical equivalences and steel grade matrices. Engineered compliance across international EN, DIN, and SAE/AISI standards.
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As an integrated steelmaker, Subhlaxmi Steel And Alloys can supply a comprehensive range of standard and exotic grades suited to customer specifications. Standard steel grades are readily available and most grades can be supplied within a short lead time.
We can make several exotic and special grades on demand. In aggregate terms, we possess the metallurgical capability to manufacture and certify over 1000 grades of steel.
1000+
Metallurgical Formulas
Full compliance with major global standard organizations. Tested for chemical composition, internal soundess, and mechanical integrity in our state-of-the-art testing laboratories.
ALLOY STEELS
| EN Standard | DIN Equivalent | SAE / AISI Equivalent |
|---|---|---|
| EN 18 | 34Cr4 | SAE 5140 |
// EN Standard EN 18 Composition Carbon (C)0.35 - 0.45% Manganese (Mn)0.60 - 0.95% Silicon (Si)0.10 - 0.35% Chromium (Cr)0.85 - 1.15% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% Medium carbon chromium steel suited for gears, pins, and shafts requiring moderate toughness. // DIN Equivalent 34Cr4 Composition Carbon (C)0.30 - 0.37% Manganese (Mn)0.60 - 0.90% Silicon (Si)0.05 - 0.40% Chromium (Cr)0.90 - 1.20% Sulfur (S)max 0.030% Phosphorus (P)max 0.035% German standard chromium alloy steel. Highly specified in European automotive engineering for low-stress rod components. // SAE Equivalent SAE 5140 Composition Carbon (C)0.38 - 0.43% Manganese (Mn)0.70 - 0.90% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.70 - 0.90% Sulfur (S)max 0.040% Phosphorus (P)max 0.035% American standard medium-carbon chromium steel. Suitable for light-duty gears, axles, and steering pins. | ||
| EN 19 | 42Cr4Mo2 | SAE 4142 |
// EN Standard EN 19 Composition Carbon (C)0.35 - 0.45% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.10 - 0.35% Chromium (Cr)0.90 - 1.50% Molybdenum (Mo)0.20 - 0.40% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% High-tensile Chrome-Moly steel, ideal for high-stress gears, axles, and drive shafts. // DIN Equivalent 42Cr4Mo2 Composition Carbon (C)0.38 - 0.45% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.90 - 1.20% Molybdenum (Mo)0.15 - 0.30% Sulfur (S)max 0.030% Phosphorus (P)max 0.035% German designation of 42CrMo4 steel. Provides exceptional mechanical properties and toughness after heat treatment. // SAE Equivalent SAE 4142 Composition Carbon (C)0.40 - 0.45% Manganese (Mn)0.75 - 1.00% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.80 - 1.10% Molybdenum (Mo)0.15 - 0.25% American medium-carbon Cr-Mo alloy steel, widely utilized for high-strength adapters and heavy-duty drilling bars. | ||
| EN 24 | 41Cr4 | SAE 4340 |
// EN Standard EN 24 Composition Carbon (C)0.35 - 0.45% Manganese (Mn)0.45 - 0.70% Silicon (Si)0.10 - 0.35% Chromium (Cr)0.90 - 1.40% Nickel (Ni)1.30 - 1.80% Molybdenum (Mo)0.20 - 0.35% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% Ultra-high strength Nickel-Chrome-Moly steel with excellent shock and impact resistance. // DIN Equivalent 41Cr4 Composition Carbon (C)0.38 - 0.45% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.90 - 1.20% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German direct-hardening chromium steel. High wear resistance, commonly used for connecting rods. // SAE Equivalent SAE 4340 Composition Carbon (C)0.38 - 0.43% Manganese (Mn)0.60 - 0.80% Silicon (Si)0.15 - 0.30% Chromium (Cr)0.70 - 0.90% Nickel (Ni)1.65 - 2.00% Molybdenum (Mo)0.20 - 0.30% Sulfur (S)max 0.035% Phosphorus (P)max 0.040% American Ni-Cr-Mo structural steel offering deep hardenability and high strength in large cross-sections. | ||
| EN 353 | 42CrMO4 | SAE 4320 |
// EN Standard EN 353 Composition Carbon (C)max 0.20% Manganese (Mn)0.50 - 1.00% Silicon (Si)max 0.35% Chromium (Cr)0.75 - 1.25% Nickel (Ni)1.00 - 1.50% Molybdenum (Mo)0.08 - 0.15% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% Case-hardening steel that combines a wear-resistant surface with a high-strength core. // DIN Equivalent 42CrMO4 Composition Carbon (C)0.38 - 0.45% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.90 - 1.20% Molybdenum (Mo)0.15 - 0.30% Sulfur (S)max 0.030% Phosphorus (P)max 0.035% German standard Chrome-Moly steel, widely specified for gears, pressure vessels, and heavy axles. // SAE Equivalent SAE 4320 Composition Carbon (C)0.17 - 0.22% Manganese (Mn)0.45 - 0.65% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.40 - 0.60% Nickel (Ni)1.65 - 2.00% Molybdenum (Mo)0.20 - 0.30% Sulfur (S)max 0.035% Phosphorus (P)max 0.040% American case-hardening steel. Offers superior core toughness and resistance to contact fatigue for heavy gears. | ||
| EN 354 | 35XRCA | SAE 8620 |
// EN Standard EN 354 Composition Carbon (C)0.15 - 0.21% Manganese (Mn)0.50 - 0.90% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.80 - 1.20% Nickel (Ni)0.80 - 1.20% Molybdenum (Mo)0.10 - 0.20% Heavy-duty case-hardening steel providing extreme wear resistance for heavy gears and pins. // DIN Equivalent 35XRCA Composition Carbon (C)0.32 - 0.39% Manganese (Mn)0.80 - 1.10% Silicon (Si)1.10 - 1.40% Chromium (Cr)0.80 - 1.10% High-strength structural chromoly steel with added silicon for elasticity and high tensile resilience. // SAE Equivalent SAE 8620 Composition Carbon (C)0.18 - 0.23% Manganese (Mn)0.70 - 0.90% Silicon (Si)0.20 - 0.35% Chromium (Cr)0.40 - 0.60% Nickel (Ni)0.40 - 0.70% Molybdenum (Mo)0.15 - 0.25% Sulfur (S)max 0.040% Phosphorus (P)max 0.040% American case-hardening steel with low Ni-Cr-Mo content. Very cost-efficient for carburized gears. | ||
| EN 8 | SCM435H | SAE 1020 |
// EN Standard EN 8 Composition Carbon (C)0.35 - 0.45% Manganese (Mn)0.60 - 1.00% Silicon (Si)0.05 - 0.35% Sulfur (S)max 0.060% Phosphorus (P)max 0.060% General-purpose medium carbon steel suitable for shafts, keys, and low-stress machinery parts. // DIN Equivalent SCM435H Composition Carbon (C)0.32 - 0.39% Manganese (Mn)0.55 - 0.90% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.85 - 1.25% Molybdenum (Mo)0.15 - 0.35% Sulfur (S)max 0.030% Phosphorus (P)max 0.030% Japanese standard alloy standard showing high strength and reliable fatigue limits for bolts and fasteners. // SAE Equivalent SAE 1020 Composition Carbon (C)0.18 - 0.23% Manganese (Mn)0.30 - 0.60% Silicon (Si)max 0.15% Sulfur (S)max 0.050% Phosphorus (P)max 0.040% American standard low carbon steel. Highly weldable and machinable, perfect for cold drawn components. | ||
| EN 8D | 20MNCR5 | SAE 52100 |
// EN Standard EN 8D Composition Carbon (C)0.40 - 0.45% Manganese (Mn)0.70 - 0.90% Silicon (Si)0.05 - 0.35% Sulfur (S)max 0.060% Phosphorus (P)max 0.060% Controlled medium carbon steel offering good strength and wear resistance for gears and fasteners. // DIN Equivalent 20MNCR5 Composition Carbon (C)0.17 - 0.22% Manganese (Mn)1.10 - 1.40% Silicon (Si)0.15 - 0.40% Chromium (Cr)1.00 - 1.30% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German case-hardening steel with manganese and chromium for elevated core hardenability and toughness. // SAE Equivalent SAE 52100 Composition Carbon (C)0.98 - 1.10% Manganese (Mn)0.25 - 0.45% Silicon (Si)0.15 - 0.30% Chromium (Cr)1.30 - 1.60% Sulfur (S)max 0.025% Phosphorus (P)max 0.025% American high-carbon chromium steel. Standard for anti-friction bearings and extreme compression rolls. | ||
| EN 31 | 16MNCR5 | SAE 4130 |
// EN Standard EN 31 Composition Carbon (C)0.90 - 1.20% Manganese (Mn)0.30 - 0.75% Silicon (Si)0.10 - 0.35% Chromium (Cr)1.00 - 1.60% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% High-carbon chromium bearing steel offering extreme surface hardness and wear resistance. // DIN Equivalent 16MNCR5 Composition Carbon (C)0.14 - 0.19% Manganese (Mn)1.00 - 1.30% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.80 - 1.10% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German standard case-hardening steel, used for piston pins, camshafts, and transmission gears. // SAE Equivalent SAE 4130 Composition Carbon (C)0.28 - 0.33% Manganese (Mn)0.40 - 0.60% Silicon (Si)0.20 - 0.30% Chromium (Cr)0.80 - 1.10% Molybdenum (Mo)0.15 - 0.25% Sulfur (S)max 0.040% Phosphorus (P)max 0.040% American Cr-Mo alloy steel, widely utilized in aerospace and motorsports for high strength-to-weight structural tubes. | ||
| EN 45 | CK45 | SAE 4140 |
// EN Standard EN 45 Composition Carbon (C)0.50 - 0.65% Manganese (Mn)0.70 - 1.00% Silicon (Si)1.50 - 2.00% Silicon-Manganese spring steel featuring high elasticity and resistance to deformation. // DIN Equivalent CK45 Composition Carbon (C)0.42 - 0.50% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.15 - 0.35% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German high-quality medium carbon steel. Great response to induction hardening, widely used for shafts. // SAE Equivalent SAE 4140 Composition Carbon (C)0.38 - 0.43% Manganese (Mn)0.75 - 1.00% Silicon (Si)0.15 - 0.30% Chromium (Cr)0.80 - 1.10% Molybdenum (Mo)0.15 - 0.25% Sulfur (S)max 0.040% Phosphorus (P)max 0.035% American general-purpose Cr-Mo alloy. Excellent balance of strength, fatigue resistance, and toughness. | ||
| EN 47 | C55 | SAE1141 |
// EN Standard EN 47 Composition Carbon (C)0.45 - 0.55% Manganese (Mn)0.50 - 0.80% Silicon (Si)max 0.50% Chromium (Cr)0.80 - 1.20% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% Chrome-Vanadium steel offering excellent fatigue resistance and high toughness for heavy-duty springs. // DIN Equivalent C55 Composition Carbon (C)0.52 - 0.60% Manganese (Mn)0.60 - 0.90% Silicon (Si)max 0.40% German high-carbon machinery steel. Well suited for wear-resistant components like gears and coupling pins. // SAE Equivalent SAE1141 Composition Carbon (C)0.37 - 0.45% Manganese (Mn)1.35 - 1.65% Sulfur (S)0.080 - 0.130% Phosphorus (P)max 0.040% American free-cutting steel with manganese and sulfur. High machinability, used for automatic lathe parts. | ||
| EN9 | SCM420 | SAE1140 |
// EN Standard EN9 Composition Carbon (C)0.50 - 0.60% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.05 - 0.35% Sulfur (S)max 0.060% Phosphorus (P)max 0.060% Medium-high carbon steel with excellent wear resistance, ideal for sprockets, cams, and rollers. // DIN Equivalent SCM420 Composition Carbon (C)0.17 - 0.23% Manganese (Mn)0.55 - 0.90% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.85 - 1.25% Molybdenum (Mo)0.15 - 0.35% Sulfur (S)max 0.030% Phosphorus (P)max 0.030% Alloy steel matching metallurgical standards. // SAE Equivalent SAE1140 Composition Carbon (C)0.37 - 0.44% Manganese (Mn)0.70 - 1.00% Sulfur (S)0.080 - 0.130% Phosphorus (P)max 0.040% American free-machining carbon steel. Excellent for screw-machine operations requiring mild strength. | ||
| EN15 | - | SAE1160 |
// EN Standard EN15 Composition Carbon (C)0.30 - 0.40% Manganese (Mn)1.30 - 1.70% Silicon (Si)0.10 - 0.35% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% Carbon-Manganese steel combining high tensile strength with good weldability for structural rods. // SAE Equivalent SAE1160 Composition Carbon (C)0.55 - 0.65% Manganese (Mn)0.70 - 1.00% Sulfur (S)0.08 - 0.13% Phosphorus (P)max 0.040% American high-carbon free-machining steel. Highly suitable for springs, guides, and hardened pins. | ||
| EN36C | - | - |
// EN Standard EN36C Composition Carbon (C)0.12 - 0.18% Manganese (Mn)0.30 - 0.60% Silicon (Si)0.10 - 0.35% Chromium (Cr)0.60 - 1.10% Nickel (Ni)3.00 - 3.75% Molybdenum (Mo)0.10 - 0.25% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% Premium case-hardening steel delivering high core toughness and wear resistance for heavy gears. | ||
| 16MnCr5 | 16MnCr5 | SAE 5115 |
// EN Standard 16MnCr5 Composition Carbon (C)0.14 - 0.19% Manganese (Mn)1.00 - 1.30% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.80 - 1.10% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German standard case-hardening manganese-chromium steel, widely used for piston pins, shafts, and gears. // DIN Equivalent 16MnCr5 Composition Carbon (C)0.14 - 0.19% Manganese (Mn)1.00 - 1.30% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.80 - 1.10% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German standard case-hardening manganese-chromium steel, widely used for piston pins, shafts, and gears. // SAE Equivalent SAE 5115 Composition Carbon (C)0.13 - 0.18% Manganese (Mn)0.70 - 0.90% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.70 - 0.90% American case-hardening chromium steel. Highly machinable, ideal for light gears and pinions. | ||
| 20MnCr5 | 20MnCr5 | SAE 8620 |
// EN Standard 20MnCr5 Composition Carbon (C)0.17 - 0.22% Manganese (Mn)1.10 - 1.40% Silicon (Si)0.15 - 0.40% Chromium (Cr)1.00 - 1.30% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German case-hardening steel with high manganese and chromium, offering good core toughness and hardenability. // DIN Equivalent 20MnCr5 Composition Carbon (C)0.17 - 0.22% Manganese (Mn)1.10 - 1.40% Silicon (Si)0.15 - 0.40% Chromium (Cr)1.00 - 1.30% Sulfur (S)max 0.035% Phosphorus (P)max 0.035% German case-hardening steel with high manganese and chromium, offering good core toughness and hardenability. // SAE Equivalent SAE 8620 Composition Carbon (C)0.18 - 0.23% Manganese (Mn)0.70 - 0.90% Silicon (Si)0.20 - 0.35% Chromium (Cr)0.40 - 0.60% Nickel (Ni)0.40 - 0.70% Molybdenum (Mo)0.15 - 0.25% Sulfur (S)max 0.040% Phosphorus (P)max 0.040% American case-hardening steel with low Ni-Cr-Mo content. Very cost-efficient for carburized gears. | ||
| 42CrMo4 | 42CrMo4 | SAE 4140 |
// EN Standard 42CrMo4 Composition Carbon (C)0.38 - 0.45% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.90 - 1.20% Molybdenum (Mo)0.15 - 0.30% Sulfur (S)max 0.030% Phosphorus (P)max 0.035% German standard Chrome-Moly structural steel, highly specified for heavy engineering gear assemblies. // DIN Equivalent 42CrMo4 Composition Carbon (C)0.38 - 0.45% Manganese (Mn)0.50 - 0.80% Silicon (Si)0.15 - 0.40% Chromium (Cr)0.90 - 1.20% Molybdenum (Mo)0.15 - 0.30% Sulfur (S)max 0.030% Phosphorus (P)max 0.035% German standard Chrome-Moly structural steel, highly specified for heavy engineering gear assemblies. // SAE Equivalent SAE 4140 Composition Carbon (C)0.38 - 0.43% Manganese (Mn)0.75 - 1.00% Silicon (Si)0.15 - 0.30% Chromium (Cr)0.80 - 1.10% Molybdenum (Mo)0.15 - 0.25% Sulfur (S)max 0.040% Phosphorus (P)max 0.035% American general-purpose Cr-Mo alloy. Excellent balance of strength, fatigue resistance, and toughness. | ||
| 34CrNiMo6 | 34CrNiMo6 | SAE 4340 |
// EN Standard 34CrNiMo6 Composition Carbon (C)0.30 - 0.38% Manganese (Mn)0.50 - 0.80% Silicon (Si)max 0.40% Chromium (Cr)1.30 - 1.70% Nickel (Ni)1.30 - 1.70% Molybdenum (Mo)0.15 - 0.30% Premium European Ni-Cr-Mo alloy steel. Delivers exceptional strength and ductility for aircraft parts and rotors. // DIN Equivalent 34CrNiMo6 Composition Carbon (C)0.30 - 0.38% Manganese (Mn)0.50 - 0.80% Silicon (Si)max 0.40% Chromium (Cr)1.30 - 1.70% Nickel (Ni)1.30 - 1.70% Molybdenum (Mo)0.15 - 0.30% Premium European Ni-Cr-Mo alloy steel. Delivers exceptional strength and ductility for aircraft parts and rotors. // SAE Equivalent SAE 4340 Composition Carbon (C)0.38 - 0.43% Manganese (Mn)0.60 - 0.80% Silicon (Si)0.15 - 0.30% Chromium (Cr)0.70 - 0.90% Nickel (Ni)1.65 - 2.00% Molybdenum (Mo)0.20 - 0.30% Sulfur (S)max 0.035% Phosphorus (P)max 0.040% American Ni-Cr-Mo structural steel offering deep hardenability and high strength in large cross-sections. | ||
| H11 | 1.2343 | SAE H11 |
// EN Standard H11 Composition Carbon (C)0.33 - 0.43% Manganese (Mn)0.20 - 0.50% Silicon (Si)0.80 - 1.20% Chromium (Cr)4.75 - 5.50% Molybdenum (Mo)1.10 - 1.60% Vanadium (V)0.30 - 0.60% Sulfur (S)max 0.030% Phosphorus (P)max 0.030% Chromium hot-work tool steel. Outstanding resistance to thermal shock cracking and high structural strength. // DIN Equivalent 1.2343 Composition Carbon (C)0.33 - 0.41% Manganese (Mn)0.25 - 0.50% Silicon (Si)0.80 - 1.20% Chromium (Cr)4.80 - 5.50% Molybdenum (Mo)1.10 - 1.50% Vanadium (V)0.30 - 0.50% German hot-work steel with high thermal conductivity, excellent toughness, and crack resistance. // SAE Equivalent SAE H11 Composition Carbon (C)0.33 - 0.43% Manganese (Mn)0.20 - 0.50% Silicon (Si)0.80 - 1.20% Chromium (Cr)4.75 - 5.50% Molybdenum (Mo)1.10 - 1.60% Vanadium (V)0.30 - 0.60% Sulfur (S)max 0.030% Phosphorus (P)max 0.030% American standard H11 hot-work steel. Outstanding fatigue limits for heavy die forging blocks. | ||
| H13 | 1.2344 | SAE H13 |
// EN Standard H13 Composition Carbon (C)0.32 - 0.45% Manganese (Mn)0.20 - 0.50% Silicon (Si)0.80 - 1.20% Chromium (Cr)4.75 - 5.50% Molybdenum (Mo)1.10 - 1.75% Vanadium (V)0.80 - 1.20% Sulfur (S)max 0.030% Phosphorus (P)max 0.030% Chromium-Molybdenum-Vanadium hot-work steel. Strong fatigue resistance and thermal crack toughness. // DIN Equivalent 1.2344 Composition Carbon (C)0.37 - 0.43% Manganese (Mn)0.25 - 0.50% Silicon (Si)0.80 - 1.20% Chromium (Cr)4.80 - 5.50% Molybdenum (Mo)1.20 - 1.50% Vanadium (V)0.90 - 1.15% German hot-work steel featuring outstanding resistance to thermal fatigue cracking and high wear resistance. // SAE Equivalent SAE H13 Composition Carbon (C)0.32 - 0.45% Manganese (Mn)0.20 - 0.50% Silicon (Si)0.80 - 1.20% Chromium (Cr)4.75 - 5.50% Molybdenum (Mo)1.10 - 1.75% Vanadium (V)0.80 - 1.20% Sulfur (S)max 0.030% Phosphorus (P)max 0.030% American standard H13 hot-work tool steel. Perfect for aluminum extrusion dies and high-pressure moulds. | ||
| EN 36 | 15CrNi6 | SAE 3115 |
// EN Standard EN 36 Composition Carbon (C)0.12 - 0.18% Manganese (Mn)0.30 - 0.60% Silicon (Si)0.10 - 0.35% Chromium (Cr)0.60 - 1.10% Nickel (Ni)3.00 - 3.75% Molybdenum (Mo)0.10 - 0.25% Sulfur (S)max 0.050% Phosphorus (P)max 0.050% Alloy steel matching metallurgical standards. // DIN Equivalent 15CrNi6 Composition Carbon (C)0.14 - 0.20% Manganese (Mn)0.40 - 0.60% Silicon (Si)0.15 - 0.35% Chromium (Cr)1.40 - 1.70% Nickel (Ni)1.40 - 1.70% German standard chrome-nickel case hardening steel. Possesses high core tensile strength and toughness. // SAE Equivalent SAE 3115 Composition Carbon (C)0.13 - 0.18% Manganese (Mn)0.30 - 0.60% Silicon (Si)0.15 - 0.35% Chromium (Cr)0.50 - 0.80% Nickel (Ni)1.00 - 1.50% American standard nickel-chromium gear steel. Great toughness and deep casing response. | ||
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