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Type Ⅰ
Category Type Steel grade Standard Country
Grades Special Alloy Type Ⅰ GBT USA

Chemical composition % of the ladle analysis of grade Type Ⅰ

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) N(%)
0.20-0.45 Max 1.75 Max 2.50 Max 0.05 Max 0.05 23.0-28.0 10.0-14.0 Max 0.20
Type Ⅰ
Mechanical properties of grade Type Ⅰ
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)
621 (≥) 479 (≥) 42 43 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 133
Physical properties of grade Type Ⅰ
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
943 (≥) 659 (≥) 12 21 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 234
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
139 272 351
Type Ⅰ Range of products
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 240 S21600 GBT USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 492 S21600 GBT USA
Stainless Steel Rope Wire
S21600 GBT USA
Austenitic Chromium Manganese Nickel Molybdenum Stainless Steel
SA-240 S21600 GBT USA
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 240 S21603 GBT USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 492 S21603 GBT USA
Stainless Steel Rope Wire
S21603 GBT USA
Austenitic Chromium Manganese Nickel Molybdenum Stainless Steel
SA-240 S21603 GBT USA
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 240 S30940 GBT USA
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 S30940 GBT USA
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 276 S30940 GBT USA
Stainless Steel Bars and Shapes
A 314 S30940 GBT USA
Stainless Steel Billets and Bars for Forging
A 358 S30940 GBT USA
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 409 S30940 GBT USA
Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service
A 478 S30940 GBT USA
Chromium-Nickel Stainless Steel Weaving and Knitting Wire
A 580 S30940 GBT USA
Stainless Steel Wire
A 813 S30940 GBT USA
Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814 S30940 GBT USA
Cold-Worked Welded Austenitic Stainless Steel Pipe
S30940 GBT USA
Austenitic Chromium Nickel Columbium Heat Resisting Stainless Steel
SA 249 S30940 GBT USA
Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Relevant products

Type Ⅰ Equivalent Grade 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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