SS 321 Stainless Steel Angles Manufacturer

Precision Alloy is a trusted manufacturer and global supplier of SS 321 stainless steel angles, engineered to meet high-temperature, welded, and structurally demanding applications. Our angles conform to ASTM A276, ASME SA276, EN 10088, and DIN 1.4541, making them ideal for use in exhaust systems, heat exchangers, aerospace, and refinery structures.

What are SS 321 Stainless Steel Angles?

SS 316 stainless steel angles are molybdenum-bearing austenitic stainless profiles that provide excellent resistance to pitting, crevice corrosion, and chloride attack, particularly in marine and chemical environments.
SS 316L is the low-carbon variant of SS 316, offering the same corrosion resistance with enhanced weldability and reduced risk of intergranular corrosion post-welding.

Both grades are available in equal and unequal leg angles, and are ideal for structural reinforcement, bracing, frames, and supports in corrosive or high-purity applications.

SS 321 Stainless Steel Angles Specifications

Property	Specification
Material Grade	SS 321
UNS Number	S32100
EN / WNR	1.4541 / X6CrNiTi18-10
Sizes	20×20 mm to 150×150 mm (Equal & Unequal Angles)
Thickness	3 mm – 12 mm
Length	3m, 6m, or custom cut sizes
Surface Finishes	Hot Rolled, Pickled, No. 1, No. 4, Polished
Standards	ASTM A276, ASME SA276, EN 10088, DIN 1.4541

Types of SS 321 Stainless Steel Angles

Chemical Composition of SS 321 Stainless Steel Angles

Element	% Composition
Carbon (C)	0.08 max
Manganese (Mn)	2.00 max
Silicon (Si)	1.00 max
Chromium (Cr)	17.0 – 19.0
Nickel (Ni)	9.0 – 12.0
Titanium (Ti)	≥5x C (min)
Phosphorus (P)	0.045 max
Sulfur (S)	0.030 max