Stainless Steel Pipe grades comparison

SPEC. NO. TITLE SCOPE

ASTM A 213
ASME SA 213

Seamless Ferritic Stainless Steel and Austenitic  Stainless  Steel  Boiler, Superheater, Heat-Exchanger, and Condenser Tubes. Pressure tubes, made from 16 grades of austenitic stainless steel and from 12 grades of ferritic Cr-Mo Alloy Steel.

ASTM A 249
ASME SA 249

Welded  Austenitic   Stainless  Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes. Pressure tubes, made from austenitic stainless steels, (Types 304, 304H, 304L, 305, 309, 310,316, 316H, 316L, 317, 321, 321H, 347, 347H, 348, 348H, and XM grades.)

ASTM A 268
ASME SA 268

Seamless and Welded Ferritic Stain-less Steel Tubing for General Service. 15 grades of ferritic stainless steel tubing for general corrosion resistance and high temperature service. (Types 329, 405, 409, 410, 429, 430, 430Ti, 443, 446, XMs & others).

ASTM A 269

Seamless  and  Welded  Austenitic Stainless Steel Tubing for General Service. 13 grades of austenitic stainless,steel tubing for general  corrosion- resisting and  high-temperature service. (Types 304, 304L, 316, 316L, 317, 321,347, 348 and XM grades).

ASTM A 270

Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. Austenitic stainless steel   intended for usein the diary and food industry in sizes up”to andincluding 4 in. in outside diameter.

ASTM  A312
ASME SA 312

Seamless and Welded Austenitic Stainless Steel Pipe. Austenitic stainless steel pipe intended for high temperature and general corrosive service.22 grades are covered.

ASTM A 358
ASME SA 358

Electric-Fusion-Welded Austenitic Chromium-Nickel Altoel for  High-Temperature For corrosion and high temperature service, normally not less than 8 in. nominal diameter. Types 304, 316, 309, 310, 321, 321, 347, 304L; 316L, 304H, 316H.

ASTM A 376
ASME SA 376

Seamless Austenitic Stainless Steel Pipe for High-Temp Central-Station Service. Austenitic stainless steel pipe intended for high temperature and general corrosive service. Better surface than A312 pipe.

ASTM A 409
ASME SA 409

Welded Large Outside Diameter Light- Wall Austenitic Chromium-Nickel .Alloy Steel Pipe for Corrosive or High-Temperature Service. Nominal diameter 14-30 in. in Schedules SS and 105. Types 304, 309, 310, 316, 317, 321, 347, 348, 304L, 316L.

ASTM A 450
ASME SA 450

General Requirements for Alloy Steel Tubes. Common requirements for ASTM tubular specifications.

ASTM A 511

Seamless Stainless Steel Mechanical Tubing. 27 grades are covered for mechanical applications.  Primarily round tubing.

ASTM A 530
ASME SA 530

General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Pipe. Common requirements for ASTM pipe specifications as listed.

ASTM A 554

Welded Stainless Steel MechanicalTubing. Nineteen grades are covered for mechanical applications. Rounds, squares, rectangles, and special shapes are included.

ASTM A 632

Seamless and Welded Austenitic Stainless Steel Tubing for General Service. Small Diameter. 9 grades of austenitic stainless steel tubing for general corrosion-resisting and high-temperature service.

AMS 556

Steel Tubing, Corrosion and Heat Resistant 18 Cr; 11 Ni; (Cb + Ta) (SAE 30347) Hydraulic. Annealed type 347 hydraulic Iin6 tubing.
Type 1—Seamless
Type 2—Welded & Drawn

AMS 5557

Steel Tubing,  Corrosion  and  Heat Resistant  18 Cr; 11 Ni; Ti (SAE30321) Hydraulic. Annealed type 347 hydraulic line tubing.
Type 1—Seamless
Type 2—Welded & Drawn

AMS 5558

Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr; 11 Ni, (Cb  + Ta) (SAE 30348) Thin  Wall. High pressure ducting, wall thickness  or less. Weld bEAD controlled, X-ray.

AMS 5559

Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr, 10 Ni, Ti, (SAE 30321) Thin Wall. High pressure ducting, wall thickness or less. Weld bead controlled, X-ray.

AMS 5560

Steel Tubing, Seamless CorrosionResistant 19 Cr; 9 Ni (SAE 30304). Annealed type 304 aircraft hydraulic line tubing. (Not subject to high pressure). Structural.

AMS 5561

Steel Tubing, Welded and DrawnHigh Pressure Hydraulic. For parts and assemblies such as fluid lines subject to high pressure and requiring corrosion

AMS 5562

Steel Tubing, Seamless Corrosion Resistant 21 Cr; 6 Ni; 9 Mn Annealed. Parts and assemblies requiring both corrosion and heat resistance, and having higher strength than 18-8 types.

AMS 5565

Steel Tubing, Welded, Corrosion Resistant 19 Cr; 9 Ni (SAE 30304). Annealed type 304 aircraft hydraulic line tubing. (Not subject to high pressure). Structural.

AMS 5566

Steel Tubing,  Seamless  or Welded Corrosion Resistant 19 Cr; 10 Ni (SAE 30304) High Pressure Hydraulic. Cold drawn type 304, high pressure, aircraftType 1   SeamlessType 2—Welded Drawn

AMS 5567

Steel Tubing, Seamless or Welded Corrosion Resistant 19 Cr; 10 Ni (SAE 30304) Hydraulic, Solution Treated. Fluid lines subject to medium high pressures requiring corrosion resistance. Annealed.(1) Seamless     (2) Welded & Drawn

AMS 5570

Steel Tubing, Seamless Corrosion and Heat Resistant 18 Cr; 10 Ni; Ti tSAE 30321). Annealed Structural. Parts and assemblies requiring both corrosion and heat resistance especially when such partsare welded during fabrication. Requiring oxidation resistance up to approximately 1500°F., but useful at that temperature only when stresses are low.

AMS  5571

Steel Tubing, Seamless Corrosion andHeai Resistant  18 Cr; 11 Ni; (Cb  + Ta)‹SAE 30347). Annealed Structural. Parts and assemblies requiring both corrosion and heat resistance especially when such parts are welded during fabrication. Requiring oxidation resistance up to approximately 1500°F., but useful at that temperature only when stresses are low.

AMS 5572

Steel  Tubing,  Seamless  Corrosion  and Heat Resistant 25 Cr; 20 Ni (SAE 30310).  Annealed  Structural. Parts and assemblies requiring both corrosion and  heat  resistance  especially  when  welded during fabrication.  Requiring oxidation resistance up to approximately 2000°F., but useful at that temperature  only when  stresses  are low.

AMS 5573

Seamless Type 316
Annealed  Structural. Parts & assemblies requiring both corrosion and heat resistance up to 1600ºF.

AMS 5574

Seamless Type 309S
Annealed  Structural. Parts & assemblies requiring both cofrosion and heat resistance up to 2000°F., especially welded assemblies.

AMS 5575

Steel Tubing, Seamless Corrosion and Heat Resistant 16 Cr; 11 Ni; (Cb + Ta) (SAE 30347). Annealed Structural. Parts and assemblies requiring both corrosion and heat resistance espec[ially when such parts are welded during fabrication. Requiring oxidation resistance up to approximately 1500ºF., but useful at that temperature only when stresses are low.

AMS 5576

Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr; 10 Ni; Ti (SAE 30321).  Annealed  Structural. Parts and assemblies requiring both corrosion and heat resistance especially when such parts are welded during fabrication. Requiring oxidation resistance up to approximately 1500°F., but useful at that temperature only when stresses are low.

A EBS  5577

Steel Tubing, Welded, Corrosion and Heat Resistant 25 Cr; 20 Ni; (SAE 30310). Annealed Structural. Parts and assemblies requiring both corrosion and heat resistance especially when welded during fabrication.  Requiring oxidation resistance up to approximately 2000°F., but useful at that temperature only when stresses are low.

AMS 5639

Seamless Type 304 Cold Finished Mechanical Tube
Rockwell 90B max Hardness Corrosion Embrittlement  Capability

AMS 5645

Seamless Type 321 Cold Finished Mechanical Tube
Rockwell 90B  max Hardness
Corrosion Embrittlement Capability

AMS 5646

Seamless Type 347 Cold Finished Mechanical Tube
Rockwell 90B max     Hardness
Corrosion  Embrittlement  Capability

AMS 5647

Seamless Type 304L Cold Finished Mechanical Tube
Rockwell  90B maxHardness
Corrosion Embrittlement Capability

AMS 5648

Seamless Type 316 Cold Finished Mechanical Tube
Rockwell 90B max Hardness

MIL-T-5695

Tubing, Steel, Corrosion Resistant(304),Cold Drawn (1/2 or 1/4 hard Smls or W & D.  Intended for use in fabrication of aircraft structural part requiring a high fegree of resisitance to corrosion.

MIL-T-6737 (T 321)

Tubing, Steel, Corrosion and Heat Resistant (18-8 Stabilized), Welded. Annealed. Type 321 and 347 tubing intended   use in the manufacture of exhaust stacks, manifolds, blast tubes,  ring collector  and similar  applications where a weldable corrosion and heat resisting steel is required or for use at 800º – 1500°F.

MIL-T-6845 (T 304)

Tubing, Steel, Corrosion Resistant 304) Aerospace Vehicle Hydraulic ³/  Hard, Seamless, Weldsd Drawn. Intended for use in high pressdre hydraulic and pneumatic systems in which corrosion resistant materials are required. The tubing is not suitable for use in applications assembled by weldin   or brazing or exposed to temperatures higher 800°F.,   because  of   impaired   resistance  to corrosion, where subsequent anneal not possible.

MIL-T-8504 (T 304)

Tubing, Steel, Corrosion Resistant 18-8) Annealed, Aircraft Hydraulic Seamless, Welded. Intended for use in high pressure hydraulic and pneumatic systems in which corrosion resistant materials are required. This tubing is of lower strength and higher ductility than tubin  Speci- fication  MIL-T-6845.  May be used to MIL-T-6845 tubing but heavier wall thicknesses must be used. Same qualifications regarding welding, brazing & temperature.

MIL-T-8506 (T 304)

Tubing, Steel, Corrosion Resistant (304) Annealed. Seamless, Welded. Intended for use in the fabrication of aircraft parts requiring a high degree of resistance to corrosion. Not to be used in high pressure hydraulic control systems.

MIL-T-8606
(T 304L)
(T 321)
(T 347)

Tubin , steel, Corrosion Resistant 18-8 Annealed. Welded & Drawn. Intended for use in applications which require a high degree of resistance to corrosion or to temperatures in the range of 800°F.—1500°F., or in applications which involve welding. Suitable for use In tank-automotive  equipment for hydraulic and mechanical applications.

MIL-T-8808
(T 321)
(T 347)

Tubing, Steel, Corrosion Resistant (18-8 Stabilized), Aircraft Hydraulic Quality. Annealed. Seamless, Welded  &  Drawn. Intended for use in high hydraulic and pneumatic systems where and heat resistance are required and in which welding or brazing may be involved during fabrication. Resists oxidation at temperatures to 1200°F., but is useful at that  temperature  only when  stresses are low.

MIL-T-8973
(T304L)
(T 316L)
(T 321)
(T 347)

Tubing,  Steel,  Corrosion  Resistant, Aerospace Vehicle Hydraulic System. ³/  Hard. Seamless, Welded & Drawn. Intended for use in high pressure hydraulic and pneumatic systems  corrosion and heat resistance are required and in which welding or brazing  may  be  involved  during  fabrication. Suitable for use in temperatures to 1200°F., when stresses  are  low.

MIL-P•1144
(T 304) (T 304L)
(T 316) (T 316L)
(T-321) (T 347)

Pipe, Stainless Steel, (Corrosion Resisting). Seamless or Welded. Annealed. Pipe is intended for high-temperature and hy- draulic or other pressure service under general corrosive conditions.