Otai Special Steel supplies alloy steel for more than 20 years. Otai has built a sound name as professional supplier of high quality alloy steel for engineering industry.
Otai Special Steel – a reputation for quality combining quality of product, speed of delivery. Otai Special Steel is the supplier of choice for many companies worldwide. We provide alloy steel with wide range of choice as below:
4140 (42CrMo4 / SCM440 / EN19)
AISI 4140 steel? It’s this low alloy mix with chromium, molybdenum, and manganese. Tons of industries are all over it because it’s super tough and doesn’t wear out easily. Plus, it can really take a hit. Honestly, there aren’t many steel types out there that are as versatile and handy as 4140.
4340 (34CrNiMo6 / EN24)
What is 4340 steel? It’s this medium carbon, low alloy steel that’s super tough and strong, especially in bigger sections. Plus, it’s got this mix of nickel, chromium, and molybdenum. Most of the time, you’ll find it hardened and tempered, and it has a strength range between 930 – 1080 Mpa.
5140 (41Cr4)
5140 steel is a kind of structural alloy steel. This 5140 steel plate is a big deal in places with low to moderate stress, like parts for vehicles, engines, and machines. Wherever a tough, wear-resistant surface is the name of the game, this steel steps up to the plate.
8620 (1.6523)
What is AISI 8620 Steel? It’s this cool low alloy mix with nickel, chromium, and molybdenum, and it’s perfect for case hardening. They usually roll it out with a hardness that doesn’t go past HB 255.
18CrNiMo7-6 (1.6587)
DIN 1.6587 steel? It’s this case-hardening alloy that’s super in demand, especially where people want really hard surfaces. Thanks to its unique chemical makeup, it’s not only durable but also stands up great against everyday wear and tear.
30CrNiMo8 (1.6580)
Look for DIN 30CrNiMo8 material ? It’s this structural steel with a decent hardenability, crafted for the heavy-duty stuff. What makes it stand out is its high bounce-back and strength properties.
