Plymouth Tube Company Air 21-6-9 Stainless Steel
Tubing
PTCA 21-6-9 Stainless Steel Tubing is manufactured by Plymouth Tube Company for the aerospace industry where toughness matters. PTCA 21-6-9 is the first choice for applications experiencing the most wear and tear,
where Titanium will be damaged and in some cases leak. Plymouth Tube Company is the only approved supplier of 21-6-9 tubing to Boeing 787 program, making it the sure choice in your next highly sensitive, damage prone application.
Remember the only way to Fly with Integrity is to specify PTCA!
PTCA
21-6-9
Size Range
(Please call or
email for
specific Inquires)
OD:
.188" through
4"
Wall Thickness:
.016" through
.0218"
Specifications:
AMS: 5561, BMS 7-185
PTCA 21-6-9 Properties
Material Type and
UNS# :
21-6-9 /
S21904
Modulus of
Elasticity 106
psi (Gpa) {at 1000˚
F (540˚ C)}:
28.5
(196)
Tensile Strength
1000 psi (mPa):
100 (690)
Yield Strength 1000
psi 0.2% offset
(mPa):
60 (415)
Elongation %:
40
Maximum Hardness
Rockwell B :
--
Condition:
A
Casting Alloy
Equivalent:
--
Minimum order size subject to change based on
OD/Wall/Grade combination
