EN3B

EN3B is a general engineering steel which is suitable in
applications where heavy stresses and heat treatment are
not involved. It is a bright drawn / turned mild steel with
good machinability but poor hardenability, and is used in a
variety of general engineering applications. EN3B can be
case hardened and is normally used in the supplied
condition. The material promotes good weldability
characteristics.

International Standard

BS 970 1991 BS 970 1955 EN AISI/SAE Werkstoff
070M20 EN3B 1020 1.0402

Available Types & Range

Form of Supply Size(mm) Length(mm)
Rolled  bar Φ20-Φ 125 Standard or As your request
Square bar 25 x 25 – 450 x 450 Standard or As your request
Plate/Sheet Thickness :6 – 300
Width:80-1,250		 Standard or As your request
Forging Φ 140 – 560 Standard or As your request

EN 3 B – ROLLED

Size – 16 mm to 200 mm Dia

Brand – JSW, VSP, ASP, SAIL, SLR

EN 3B SHEET

Thickness :1 – 300 ( mm)
Width:80-1,250 & 2500 ( mm )

(As per your Requirement)

EN 3B FORGED ROUNDS

Dia – 140 – 560 mm

Length – 3 – 5.5 mtr

Brand – Kolkatta & Punjab Main Make

(As per your Requirement)

Chemical Composition & Technical Specification EN 3 B

C Si Mn Ni Cr Mo S P
% % % % % % % %
0.25 Max 0.35 Max 1.0 Max – – – 0.06 Max 0.06 Max

Mechanical Properties

Condition Tensile StrengthMPa Min. Yield StrengthMPa Min. Elongation %
Cold drawn 560 440 10
Turned & Polished 430 215 21

Weldability
Good.

Key features:
• Suitable for low stress engineering applications
• Can be case hardened
• Good for general machining
• For general engineering use
• Good weldability
Machinability
Good general machining

Applications
• Shafts & rollers
• Machinery parts
• Threaded bars
• Spindles & axles
• Low stress engineering applications