321 stainless aerospace tubing is made from an austenitic stainless steel offering an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 321 stainless steel is resistant to chromium carbide formation due to the addition of titanium.

SKU	Description	OD	Wall	Specification
36321	SMLS CD 321 8808 3/8 OD X .065 WA	0.3750	0.0650	MIL-T-880 AMS5570
36284	SMLS CD 321 8808 3/8 OD X .049 WA	0.3750	0.0490	MIL-T-880 AMS5570
36254	SMLS CD 321 8808 3/8 OD X .035 WA	0.3750	0.0350	MIL-T-880 AMS5570
36203	SMLS CD 321 8808 3/8 OD X .028 WA	0.3750	0.0280	MIL-T-880 AMS5570
36152	SMLS CD 321 8808 3/8 OD X .020 WA	0.3750	0.0200	MIL-T-880 AMS5570
36548	SMLS CD 321 8808 1/2 OD X .065 WA	0.5000	0.0650	MIL-T-880 AMS5570
36522	SMLS CD 321 8808 1/2 OD X .049 WA	0.5000	0.0490	MIL-T-880 AMS5570
36488	SMLS CD 321 8808 1/2 OD X .035 WA	0.5000	0.0350	MIL-T-880 AMS5570
36434	SMLS CD 321 8808 1/2 OD X .028 WA	0.5000	0.0280	MIL-T-880 AMS5570
36407	SMLS CD 321 8808 1/2 OD X .020 WA	0.5000	0.0200	MIL-T-880 AMS5570

Stock Size Range:

• OD: .062"- 6.5"
• Walls: .006" - .120"
• Tempers: Annealed
• Specifications: MI-L-T 8808, MIL-T-8606, AMS 5557, AMS 5570

Typical Chemical Composition %
Weight %	Ni	Cr	Mn	C	Si	S	P
Minimum	9.00	17.00
Maximum	12.00	19.00	2.00	.080	1.00	.030	.045

 

Typical Mechanical Properties
Nominal OD	Nominal Wall	Ultimate KSI	Yield KSI	Elongation
.188 and less	.016 and less	75-120 max		35%
		75-105 max	30 min
	Over .016			35%
Over .188	.010 and	75-115 max	30 min	35%
Thru .500	Less
incl	Over .010	75-105 max		35%
Over .500	All	75-100 max	30 min	35%