METAL GRADES

HY-100 Military Grade Submarine Steel

Steel is a high-performance material. Modern alloying technology and post processing techniques have advanced the material science considerably over the last century. The military presents some of the biggest challenges to steel quality and, as a result, the steel industry has responded with some of the highest quality steel yet produced. Certified to the MIL-S-21952 C/D and T9074-BD-GIB-010/0300 specifications, HY-100 steel represents some of the finest performance features ever developed for steel fabrication projects, and exhibits excellent strength, weldability, impact resistance, and pressure integrity. Because of the corrosive marine environment, the need to ensure absolute integrity of the submarine vessel surface, and the potentially explosive impact forces a military vessel may encounter, steel quality must be top notch, and designed to be corrosion resistant, highly weldable, and exhibit the best impact resistance available. HY-100 is a premium steel with all these characteristics.

Yield/Tensile Strength

Metric

Imperial

Tensile Strength, Ultimate

792 - 930 MPa

115 - 135 ksi

Tensile Strength, Yield

690 - 897 MPa

100 - 120 ksi

Elongation

18

18

Material Chemistry

C

MN

P

S

SI

NI

CR

MO

CU

V

TI

NB

0.13 - 0.18%

0.1 - 0.4%

0.015%

0.008%

0.15 - 0.38%

2.5 - 3.5%

1.4 - 1.8%

.035- .06%

0.25%

0.03%

0.02%

N/A