What is CrNiMo steel?

What is CrNiMo steel?

UNS ID: 1.4401. X 5 CrNiMo 17 12 2 Stainless Steels consists of Chromium (16.5% – 18.5%), Nickel (10.5% – 13.5%), Molybdenum (2% – 2.5%), Carbon (0% – 0.07%), Iron (Bal) as primary components.

What are the grades in stainless steel?

The two most common stainless steel grades are 304 and 316. The key difference is the addition of molybdenum, an alloy which drastically enhances corrosion resistance, especially for more saline or chloride-exposed environments. 316 stainless steel contains molybdenum. 304 stainless steel does not.

What is hardness of stainless steel?

Stainless Steel (C Scale)

Rockwell Hardness Number C Scale, 150 Kgf (HRC) Rockwell Hardness Number A Scale, 60 Kgf (HRA) Rockwell Superficial Hardness No. 15N Scale, 15 Kgf (15N)
28 64.3 73.9
27 63.8 73.4
26 63.3 72.9
25 62.8 72.4

Is specification for stainless steel?

The most common grade of austenitic stainless steel is 304 (1.4301). A common name for 304 stainless is 18/8. This name refers to the average composition, 18% chromium and 8% nickel. It is sometimes used generically for austenitic stainless steel other than 304, even if the actual composition is vastly different.

What is the lowest grade stainless steel?

Martensitic Grades They are magnetic and can be hardened by heat treating. The martensitic grades are mainly used where hardness, strength, and wear resistance are required. Basic martensitic grade, containing the lowest alloy content of the three basic stainless steels (304, 430, and 410).

What is Grade 2 stainless steel?

A2 grade stainless steel is also often referred to as type 304 or 18/8 – this latter label denotes the fact that A2 grade stainless steel containing approximately 8% nickel and 18% chromium. With a high hardness level and consistent dimensional stability, A2 stainless steel shows good resistance to wear & tear.

Is 304 SS annealed?

Type 304/304L is the modern version of “18-8” stainless steel containing approximately 18% chromium and 8% nickel and is the most commonly specified stainless steel used throughout the world. Type 304/304L is non-magnetic in the annealed condition but may become slightly magnetic as a result of cold working.

What stainless steel is normally nonmagnetic?

Austenitic stainless steels contain nickel and are non-magnetic.

Is code for SS railing?

HSN Code 7302

HS Code Description GST%
730210 Rails of iron or steel, for railway or tramway track (excluding check-rails) ,Products include: Stainless Steel Railing 18%
73021020 TRAMWAY RAILS ,Products include: Stainless Steel Railing 18%