Low-Alloy Steel Grades Chart

Low-Alloy Steel Grades Chart

Low-carbon quenched and tempered steels

Low-Alloy Steel Grade List

  • AISI 4130
  • AISI 4140
  • AISI 4145
  • 13cr (13 chrome)
  • API 5CT T95
  • API 5CT Q125
  • SM-C110
  • API 5CT L80
  • API 5CT P110

ASTM Specification of Low Alloyed Steel Flat and Long Products

Check Low Alloy Steel ASTM Grades and Specification for PIpes, Fittings, Plates, Flanges, Bars and Nut Bolts

Low-Alloy Steel Pipe ASTM A335 / SA 335 P5, P9, P11, P12, P22 and P91, ASTM A423
Alloy Steel Plate ASTM A656 HSLA Grade 50, 60, 70, 80, 100, A387, A542, A852/A852M
Low-Alloyed Steel Fittings ASTM A420, A234 WP5, WP9, WP11, WP12, WP22, WP91, A592 Forged and Buttweld Fittings
Low Alloy Carbon Steel Flanges ASTM A105, A105N, ASTM A182, ASTM A350 LF2, LF3, ASTM A694
Low Alloys Fasteners ASTM A193, A307, F835, A574 / A574M, ASTM A320 Grade L7, L7M
High-Strength Low Alloy Steel Round Bars ASTM A0006, A588/A588M, A29, ASTM A105, A572, A579, A514
Low Alloy Steel Valves ASTM A217 Gr WC1, WC6, WC9, A148

Types of Low Alloy Steel

  • Low-alloy steels
  • Low-carbon quenched and tempered steels
  • Micro alloyed steels
  • Molybdenum steels
  • Pearlite reduced steel
  • Tool steel
  • High strength low alloy steels (HSLA steel)
  • Bake hardenable low alloy steels
  • Weathering steel
  • Acicular ferrite steel
  • Dual phase steel

Low Alloy steel (Cr – Mo Steel) grades and suitable welding consumables

Steel category ASTM / ASME standard    
  Low Alloy Steel Plate Low Alloy Steel Pipe SMAW Electrode/ Rod Flux Cored Wires
0.5%Mo A204 Grade A,B,C A336 Grade F1 A209 Grade T1 A335 Grade P1 GL76/78A1 GMX 811A1
0.5%Cr-0.5%Mo A387 Grade 2 CI.1,2 A213 Grade T2 A335 Grade P2 GL86/88B1  
1.25%Cr-0.5%Mo A387 Grade 12 Cl.1,2 A387 Grade 11 CI.1,2 A336 Grade F11 A213 Grade T11, 12 A335 Grade P11, 12 A182 Grade F11 GL86/88B2 GMX 811B2
2.25%Cr-1.0%Mo A387 Grade 22 CI.1,2 A336 Grade F22 A213 Grade T22 A335 Grade P22 A182 Grade F22 GL86/88B3 GMX 911B3
5.0%Cr-0.5%Mo A387 Grade 5 CI.1,2 A335 Grade P5 GL86/88B6  
9.0%Cr-1.0%Mo A387 Grade 9 CI.1,2 A335 Grade P9 GL86/88B8  

American Standad of Low Temperature Steel Grades

Pipes, Seamless and Welded ASTM A333 Grade 6
Buttweld Fittings A420 Grade WPL6
Pipe Flanges ASTM A350 LF2
LTCS Valves and Casting ASTM A352 LCB, LCA, LCC, BS 3100 Grade AL1, AL2, AL3

Heat Resistant High Alloy Steel

  • High-Speed Tool Steels
  • Stainless Steel
  • Ferritic Stainless Steel
  • Martensitic Stainless Steel
  • Austenitic Stainless Steel
  • Maraging Steel
  • Manganese Steel
Titanium

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