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Products/Alloy Steel/EN39B

EN39B Alloy Steel Round Bar

4.25% Nickel-Chromium-Molybdenum Heavy-Duty Case-Hardening Steel

Standard
BS 970 (835M15 / 835H15 / EN39B)
Werkstoff / UNS
Werkstoff: 1.6723 / 1.5920UNS: G93106
Common Equivalents
835M15835H1515NiCrMo16-5X19NiCrMo4SAE 9310
Overview

About EN39B Alloy Steel

C P Steel Suppliers supplies EN39B Alloy Steel for engineering, industrial machinery and manufacturing applications. It is classified as 4.25% Nickel-Chromium-Molybdenum Heavy-Duty Case-Hardening Steel. Common equivalents include 835M15, 835H15, 15NiCrMo16-5, X19NiCrMo4, SAE 9310. Available forms include ROUND BAR.

Contact our Mumbai team with your required size and quantity to confirm availability, documentation and delivery.

EN39B Round Bar Suppliers, EN39B Stockist, EN39B Big Dia, EN39B Cut to size as per requirement, EN39B vs 835M15, 835H15, 15NiCrMo16-5, X19NiCrMo4, SAE 9310, EN39B Flat Bar, EN39B Small Quantity, EN39B Larger Dia, EN39B Circle, Ring. EN39B Mumbai, Chennai, Tamil Nadu, Gujarat, Pune, Maharashtra, India etc.

Specification

Chemical Composition

ElementComposition (wt%)
CCarbon
0.12 - 0.18%
MnManganese
0.25 - 0.50%
SiSilicon
0.10 - 0.35%
NiNickel
3.90 - 4.30%
CrChromium
1.00 - 1.40%
MoMolybdenum
0.15 - 0.30%
PPhosphorus
max 0.025%
SSulfur
max 0.025%
FeIron
Balance
Performance

Mechanical, Physical & Processing Properties

PropertyValue / Reading
Tensile Strengthmin 1310 MPa (Core after Case Hardening)
Yield Strengthmin 1000 MPa (Core)
Elongationmin 9 - 12 %
Hardness Brinellmax 277 HBW (Sub-critical Annealed) / 58 - 63 HRC (Carburized Case)
PropertyValue / Reading
Density7.86 g/cm³
Melting Point1430 °C
Modulus Of Elasticity205 GPa
Thermal Conductivity34.0 W/m·K
PropertyValue / Reading
WeldabilityWeldable in annealed state with preheating; do not weld after carburizing.
MachinabilityMachined in sub-critical annealed condition; finish ground after hardening.
Case HardeningUltimate core strength and shock toughness among carburizing steels for aerospace and racing gears.
Corrosion ResistanceGood atmospheric resistance relative to low-alloy steels.
Cross Reference

Equivalent Grades by Standard

Standard / RegionEquivalent Grade
Indian IS15Ni4Cr1Mo1 (IS 1570)
European EN14NiCrMo13-4 / 15NiCrMo16-5 (EN 10084)
Germany DIN14NiCrMo13-4 / 18CrNi8
Japan JISSNCM815 (JIS G4053)
UK (BS)835M15 / 835H15 / EN39B (BS 970)
USA (SAE / AISI)SAE 9310 / AISI 9310
Availability

Available Forms & Sizes

  • ROUND BAR
Form TypeSize Range Available
Black Round BarsOD 16MM - OD 200MM
FAQ

EN39B — frequently asked questions

What is the equivalent of EN39B?
Common equivalents include 835M15, 835H15, 15NiCrMo16-5, X19NiCrMo4, SAE 9310. Standards: Indian IS: 15Ni4Cr1Mo1 (IS 1570); European EN: 14NiCrMo13-4 / 15NiCrMo16-5 (EN 10084); Germany DIN: 14NiCrMo13-4 / 18CrNi8; Japan JIS: SNCM815 (JIS G4053); UK (BS): 835M15 / 835H15 / EN39B (BS 970); USA (SAE / AISI): SAE 9310 / AISI 9310.
Which forms of EN39B are available?
EN39B is available as ROUND BAR.
Where can I buy EN39B Alloy Steel in Mumbai or across India?
C P Steel Suppliers supplies EN39B Alloy Steel from Mumbai. Contact us with your size and quantity to confirm availability and delivery.

Interested in Alloy Steel EN39B?

Tell us the size and quantity you need and we will get back to you.

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