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AMS SA-312 TP309HCb Details

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SA-312 TP309HCb Application:Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Category Type Grade Microstructure Designations
Grades Stainless Steels SA-312 TP309HCb Austenite USA - AMS , SA-312/SA-312M - Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Chemical composition(wt.%) of SA-312 TP309HCb grade: SA-312/SA-312M

Elements Min.（≥） Max.（≤） Similar Remarks
C 0.04 0.10
Si - 0.75
Mn - 2.00
P - 0.045
S - 0.03
Cr 22.0 24.0
Ni 12.0 16.0
Nb - 1.100
Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Mechanical properties of grade SA-312 TP309HCb SA-312/SA-312M

Proof strength
Rp0.2 (MPa)		 Tensile strength
Rm (MPa)		 Impact energy
KV (J)		 Elongation at fracture
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
542 (≥) 693 (≥) 33 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical properties of grade SA-312 TP309HCb SA-312/SA-312M

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		 Expansion rate
766 (≥) 283 (≥) 41 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
311 287 426

SA-312 TP309HCb - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L 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
A 213 TP309HCb SAE USA
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A 240 Type 309HCb SAE USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 TP309HCb SAE USA
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 312 TP309HCb SAE USA
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 943 TP309HCb SAE USA
Spray-Formed Seamless Austenitic Stainless Steel Pipes
A 959 Type 309HCb SAE USA
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
SA-213 TP309HCb AMS USA
Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
SA-240 309HCb AMS USA
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-249 TP309HCb AMS USA
Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
SA-312 TP309HCb AMS USA
Specification for Seamless and Welded Austenitic Stainless Steel Pipes
Y1Cr18Ni9 GB China
Improve the machinability, ablation resistance. Suitable for automatic lathe production of bolt and nut
1Cr18Ni9 GB China
High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts
1Cr18Mn10Ni5Mo3N GB China
Of urea with good corrosion resistance, can produce urea corrosion of the equipment.
1Cr17Ni7 GB China
High strength after cold forming. Used in railway vehicle, conveyor belt, bolt and nut, etc
Y1Cr18Ni9Se GB China
Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
0Cr18Ni9 GB China
Seamless stainless steel tubes for boiler and heat exchanger
00Cr19Ni10 GB China
Carbon content lower than 0Cr19ni9 steel, excellent intergranular corrosion resistance, is used for welding after the class is not processed parts
1Cr17Mn6Ni5N GB China
Nickel steel grade, instead of number 1 cr17ni7 and magnetism after cold working, used in railway vehicle, etc
1Cr18Mn8Ni5N GB China
Nickel steel, instead of 1cr18ni9
0Cr19Ni9N GB China
Based on 0cr19ni9 plus N, strength increase and the plastic is not down. Reduce the thickness of the material. As a structure with strength components

Relevant products

SA-312 TP309HCb Steel Stock

Steel grade Dimension Shape Unit Quantity Delivery state Query
SkD-11 Round Bar Stock Φ30-Φ350 Round Bar Kgs 3102 Hot-Rolled+Annealed+black Enquiry
17-4PH Coil Stock 0.08*200mm Coil or Strip Kgs 1623 Cold-Rolled+Annealed Enquiry
D2 Round bar Φ25-Φ380mm Round Bar Kgs 45325 Hot-Rolled+Annealed+black Enquiry
Cr8 flat bar 12*355*L Flat or Square bar Kgs 3965 Forged+Annealed+black Enquiry
17-4PH Round Bar Φ5-300mm*L Round Bar Kgs 46958 Hot-Rolled+Annealed+black Enquiry
17-4PH plate 8-45*1200*3000mm Plate or Sheet Tons 4.9 Hot-Rolled+Annealed+black Enquiry
Cr12MoV 12-160(T)*310-610(W)*L Plate or Sheet Tons 12.38 Hot-Rolled+Annealed+black Enquiry
1.2601 12-160(T)*310-610(W)*L Plate or Sheet Tons 11.22 Hot-Rolled+Annealed+black Enquiry
IncoloyA-286 / GH 2132 Stock Φ8-65mm*L Round Bar Kgs 489 Hot-Rolled+Annealed+black Enquiry
Incoloy800 round bar Φ115*1400 Round Bar Kgs 169 Hot-Rolled+Annealed+black Enquiry
17-7PH / 631 Coil & Strip, Sheet Stock 0.3-3.0*10-180mm Coil or Strip Kgs 1236.22 Cold-Rolled+Annealed Enquiry
X22CrMoV12-1 / 1.4923 Φ17mm Round Bar Kgs 300 Hot-Rolled+Annealed+black Enquiry
1.2083 Forged Plate T:105-185mm*W:510*L Plate or Sheet Tons 26 Forged+QT Enquiry
X22CrMoV12-1 / 1.4923 Φ30mm Round Bar Kgs 300 Hot-Rolled+Annealed+black Enquiry
1.4882 strip/sheet/plate stock 3.5x200x1000-2000mm Coil or Strip Kgs 200 Cold-Rolled+Annealed Enquiry
A387 F5 & Grade 5 sheet Coil strip 0.5mmx200mmxC Coil or Strip Tons 3 Cold-Rolled+Annealed Enquiry
A387 F5 & Grade 5 Hot Coil stock Select Tons 3 Hot-Rolled+Annealed+black Enquiry
T45Cr5Si3 Round Bar Dia.40mm Round Bar Kgs 500 Hot-Rolled+Annealed+black Enquiry
UNS K30960(VIM+ESR) Bright Round Bar Dia.22mm Round Bar Kgs 50 Hot-Rolled+Annealed+black Enquiry
SA-437 Grade B4B/SUS 616 /422 Forged Bar Dia.160xL Round Bar Kgs 2120 Forged+QT Enquiry

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