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AMS SA-268 S44735 Details

AMS SA-268 S44735 Standard Download

SA-268 S44735 Application:Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Category	Type	Grade	Microstructure	Designations
Grades	Stainless Steels	SA-268 S44735	Ferrite	USA - AMS , SA-268/SA-268M - Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Chemical composition(wt.%) of SA-268 S44735 grade: SA-268/SA-268M

Elements	Min.（≥）	Max.（≤）
C	-	0.03
Mn	-	1.00
Si	-	1.00
P	-	0.04
S	-	0.03
Cr	28.00	30.00
Ni	-	1.00
Mo	3.60	4.20
N	-	0.045

Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Mechanical properties of grade SA-268 S44735 SA-268/SA-268M

Proof strength R_p0.2 (MPa)	Tensile strength R_m (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
336 (≥)	125 (≥)	23	43	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	111

Physical properties of grade SA-268 S44735 SA-268/SA-268M

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2
276 (≥)	994 (≥)	11	42	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	121
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
329	844	961

SA-268 S44735 - Form of Supply

Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)WL	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm*L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting,
Coil / Strip	Steel Coil /Steel Strip	0.03-16.0x1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion, Cold Drawn, Welded	Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade	Standard	Country	Application
0Cr13Al	GB	China	Heat-resisting steel sheets and plates
0Cr17Ni7Al	GB	China	Heat-resisting steel sheets and plates
0Cr15Ni7Mo2Al	GB	China	Stainless steel bars
0Cr17Ni7Al	GB	China	Heat-resisting steel sheets and plates
A 240 S20161	SAE	USA	Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 276 S20161	SAE	USA	Stainless Steel Bars and Shapes
A 314 S20161	SAE	USA	Stainless Steel Billets and Bars for Forging
A 479 S20161	SAE	USA	Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 580 S20161	SAE	USA	Stainless Steel Wire
A 959 S20161	SAE	USA	Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
F 899 S20161	SAE	USA	Standard Specification for Wrought Stainless Steels for Surgical Instruments
S20161	AISI	USA	Austenitic Chromium Manganese Nickel Silicon Stainless Steel
SA-240 S20161	AMS	USA	Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-276 S20161	AMS	USA	Specification for Stainless Steel Bars and Shapes
SA-479 S20161	AMS	USA	Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
B 688 N08366	SAE	USA	Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip
B 690 N08366	SAE	USA	Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Seamless Pipe and Tube
B 691 N08366	SAE	USA	Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 and UNS N08367) Rod, Bar, and Wire
N08366	AISI	USA	Austenitic Ni-Cr-Mo Stainless Steel
SB-688 N08366	AMS	USA	Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip