EN31 Alloy Steel – Premium-Grade Wear-Resistant Steel

EN31 is a high-carbon, high-strength alloy steel known for its exceptional toughness, ductility, and wear resistance. Enriched with chromium, nickel, and molybdenum, EN31 undergoes hardening and tempering prior to delivery, making it a preferred choice for parts that demand superior tensile strength and shock resistance.

Its strong internal structure and surface hardness ensure outstanding performance under high stress, even in low-temperature conditions, while still being reliable in applications involving elevated heat.

---

Chemical Composition of EN31

---

Physical Properties of EN31 Steel

---

Heat Treatment of EN31

EN31 requires careful heat treatment depending on the component’s size and application. Typical process:

• Tempering Temperature: 150°C to 300°C, based on desired mechanical properties.

• Soaking Time: Minimum 1 hour per 25mm of section thickness.

• Cooling: Controlled air cooling is preferred post-tempering for uniform hardness.

---

Forging Characteristics

• Forging Temperature Range: 1000°C to 1050°C

• Ensure the material is heated thoroughly and avoid forging below 850°C.

• After forging, cool slowly in a furnace to minimize internal stresses and cracking.

---

Available Forms & Dimensions

EN31 Steel Pipes

• Outer Diameter (OD): Up to 550mm

• Inner Diameter (ID): Up to 400mm

• Length: Up to 6000mm

EN31 Flat Bars

• Rolled Flat Bar: Thickness up to 50mm, Width up to 455mm

• Forged Flat Bar: Thickness up to 305mm, Width up to 455mm

EN31 Round Bars

• Rolled Round Bar: 16mm – 250mm

• Heavy Forged Round: 200mm – 450mm

• Machined Round: 260mm – 620mm

EN31 / SAE 52100 Plates

• Length: Up to 6300mm

• Thickness: Up to 120mm

EN 19 Steel

Forged Forms Available:

1. Shaft

2. Circle

3. Rings

4. Backup Rolls

5. Gear Blank

6. Die Block

7. Block

8. Flat

9. Round

---

Applications of EN31 Steel

EN31 is widely used for components requiring wear resistance and toughness under high loads. Key applications include:

• Taps

• Ejector pins

• Gauges

• Roller bearings

• Swaging dies

• Press tools and other machine components

---

Other Grades Available

We also stock a wide range of engineering steels: C45, EN8, EN9, EN19, EN24, EN36C, EN41B, EN47, EN353, IS2062, 42CrMo4, HCHCR, OHNS, D2, D3, H11, H13, M2, M35, M42, P20 (variants), SAE 4340, 8620, 52100, 16MnCr5, 20MnCr5, CK45, S355J2G3, and more.

---

Delivery Across Major Cities

We supply EN31 steel products across industrial zones in:

Uttar Pradesh

Kanpur, Lucknow, Ghaziabad, Agra, Varanasi, Prayagraj, Meerut, Noida, Bareilly, Moradabad, Aligarh, Gorakhpur, and more.

Rajasthan

Jaipur, Bhiwadi, Kota, Jodhpur, Udaipur, Bhilwara, Bikaner, Ajmer, Sikar, Sri Ganganagar, Alwar, and others.

Haryana

Gurgaon, Faridabad, Panipat, Hisar, Rohtak, Karnal, Ambala, Sonipat, Yamunanagar, Sirsa, Rewari, and nearby towns.