309 Stainless Steel Screws

F2281 Type 309, 1.4833, 309, S30909, X7CrNi23-14

309 Stainless Steel Screws are austenitic stainless steel screw manufactured from alloy containing chromium and nickel. Stainless Steel 309 Set Screw are used for low temperature service and highly corrosive environments. TorqBolt is an eminent 309 Stainless Steel screw supplier in India.

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309 Stainless Steel Screws Properties

309 Stainless Steel Screws Classification

Alloy Grade	UNS Designation
ASTM F2281 309 Type II	S30900

309 Stainless Steel Screws Chemical Requirements

Alloy	C	Mn	P	S	Si	Cr	Ni	Cu	Mo	Other
ASTM F2281 309 Type II	0.20	2.00	0.045	0.030	1.00	22.0-24.0	12.0-15.0	. . .	. . .	. . .

309 Stainless Steel Screws Mechanical Requirements

Alloy Grades	Condition	Marking	Nominal Diameter, in.	Full-Size Tests		Rockwell Hardness	Machined Specimen Tests
Alloy Grades	Condition	Marking	Nominal Diameter, in.	Tensile Strength, min, ksi	Yield Strength, min, ksi	Rockwell Hardness	Tensile Strength, min, ksi	Yield Strength, min, ksi	Elongation 4D, min %
ASTM F2281 309, 310 Type II, Class A	A	F2A	All diameters	75	30	85 to 95 HRB	75	30	30
	CWA	F2B	All diameters	75	30	65 to 95 HRB	75	30	30
	HWA	F2C	All diameters	75	30	65 to 95 HRB	75	30	30

309 Stainless Steel Screws Heat Treatment

Alloy Grade	Safe Scaling Temperature at Continuous Service Application	Safe Scaling Temperature at Continuous Service Application
ASTM F2281 309 Type II	2000°F (1093°C)	1850°F (1010°C)

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