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Strength. Quality. Efficiency

Case hardening steel rods with a dark core and slightly hardened outer surface. multiple r
ravi-65-x-65-steel-billet.jpg

Billet

stainless-steel-round-bar-316-ti.jpg

Bright Bars

bright-bars.png

Round Bars

billets-bar-500x500.webp

Blooms

images (11).jpeg

Wire Rods

Different Types of Case Hardening Steel

Chemical Composition of Case Hardening Steel

Grade
%C
%Mn
%Si
%S
%P
%Cr.
%Ni
%Mo.
EN-36B
0.12 - 0.18
0.30 - 0.60
0.10 - 0.35
0.050 max
0.050 max
0.60 - 1.10
3.00 - 3.75
EN-36C
0.12 - 0.18
0.30 - 0.60
0.10 - 0.35
0.050 max
0.050 max
0.60 - 1.10
3.00 - 3.75
0.10 - 0.25
EN-39B
0.12 - 0.18
0.50 max
0.10 - 0.35
0.050 max
0.050 max
1.00 - 1.40
3.80 - 4.50
0.15 - 0.35
EN-352
0.20 max
0.50 - 1.00
0.35 max
0.050 max
0.050 max
0.60 - 1.00
0.85 - 1.25
0.10 max
EN-353
0.20 max
0.50 - 1.00
0.35 max
0.050 max
0.050 max
0.75 - 1.25
1.00 - 1.50
0.08 - 0.15
EN-354
0.20 max
0.50 - 1.00
0.35 max
0.050 max
0.050 max
0.75 - 1.25
1.50 - 2.00
0.10 - 0.20
EN-355
0.20 max
0.40 - 0.70
0.35 max
0.050 max
0.050 max
1.40 - 1.70
1.80 - 2.20
0.15 - 0.25
815M17
0.14 - 0.20
0.60 - 0.90
0.10 - 0.35
0.035 max
0.035 max
0.80 - 1.20
1.20 - 1.70
0.10 - 0.20
SAE-4320
0.17 - 0.22
0.45 - 0.65
0.15 - 0.30
0.040 max
0.035 max
0.40 - 0.60
1.65 - 2.00
0.20 - 0.30
SAE-8615
0.13 - 0.18
0.70 - 0.90
0.20 - 0.35
0.040 max
0.040 max
0.40 - 0.60
0.40 - 0.70
0.15 - 0.25
SAE-8620
0.18 - 0.23
0.70 - 0.90
0.15 - 0.30
0.040 max
0.035 max
0.40 - 0.60
0.40 - 0.70
0.15 - 0.25
SAE-8620H
0.17 - 0.23
0.60 - 0.95
0.15 - 0.30
0.025 max
0.025 max
0.35 - 0.65
0.35 - 0.75
0.15 - 0.25
16MNCR5
0.14 - 0.19
1.00 - 1.30
0.10 - 0.40
0.035 max
0.035 max
0.80 - 1.10
20MNCR5
0.17 - 0.22
1.10 - 1.40
0.15 - 0.40
0.035 max
0.035 max
1.00 - 1.30
17CRNIMO6
0.14 - 0.19
0.50 - 0.90
0.40 max
0.035 max
0.025 max
1.50 - 1.80
1.40 - 1.70
0.25 - 0.35
18CRNIMO6
0.15 - 0.21
0.50 - 0.90
0.40 max
0.035 max
0.025 max
1.50 - 1.80
1.40 - 1.70
0.25 - 0.35
SCM-415
0.13 - 0.18
0.60 - 0.90
0.15 - 0.35
0.030 max
0.030 max
0.90 - 1.20
0.15 - 0.25
SCM-420
0.18 - 0.23
0.60 - 0.90
0.15 - 0.35
0.030 max
0.030 max
0.90 - 1.20
0.15 - 0.25
SCM-420H
0.17 - 0.23
0.55 - 0.95
0.15 - 0.35
0.030 max
0.030 max
0.85 - 1.25
0.25 max
0.15 - 0.30
SCR-415
0.13 - 0.18
0.60 - 0.90
0.15 - 0.35
0.030 max
0.030 max
0.90 - 1.20
SCR-420
0.18 - 0.23
0.60 - 0.90
0.15 - 0.35
0.030 max
0.030 max
0.90 - 1.20

Different Types of Mild Steels

ravi-65-x-65-steel-billet.jpg

Billet

stainless-steel-round-bar-316-ti.jpg

Bright Bars

bright-bars.png

Round Bars

billets-bar-500x500.webp

Blooms

images (11).jpeg

Wire Rods

Case Hardening Steel

Case hardening steel is specially treated through a heat process to form a hard, wear-resistant outer layer while retaining a tough, ductile core. This dual characteristic allows it to resist surface wear while absorbing impact and shock internally. It is commonly used for components like gears, shafts, and other parts that demand both surface durability and inner strength.

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