Alloy Steel Round Bar

Forged Or Hot Rolled JIS SCM420/GB 20CrMO/DIN 1.7218 Alloy Steel Round Bar With Black Surface Description: 1.JIS SCM420/GB 20CrMO/DIN 1.7218 alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤210HBS ; 4 Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS C/C 6.Production leadtime: 7~10 days 7. Chemical composition: Grade C Si Mn Cr

Wear Resistence JIS SCM420 / GB 20CrMO / DIN 1.7218 Alloy Steel Round Bar Description: 1.JIS SCM420/GB 20CrMO/DIN 1.7218 alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤210HBS ; 4 Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS C/C 6.Production leadtime: 7~10 days 7. Chemical composition: Grade C Si Mn Cr Mo 20CrMo 0.17-0.24

Hot Rolled Or Forged AISI 4340 / GB40CrNiMo / DIN 1.6511 Alloy Steel Round Bar Description: 1. AISI 4340/GB40CrNiMo/DIN 1.6511 alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤220HBS ; 4 Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS D/D or E/E 6.Production leadtime: 7~10 days 7. Chemical composition: C Si Mn S P Cr Ni Mo 0

AISI 4135/JIS SCM435/GB 35CrMo/DIN 1.7220 Alloy Steel Round Bar For Turbine Components Description: 1.AISI 4135/JIS SCM435/GB 35CrMo/DIN 1.7220alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤210HBS ; 4 Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS C/C 6.Production leadtime: 7~10 days 7. Chemical composition: C SI Mn Cr P S

Forged Or Hot Rolled AISI 4135/JIS SCM435/GB 35CrMo/DIN 1.7220 Alloy Steel Round Bar Description: 1. AISI 4135/JIS SCM435/GB 35CrMo/DIN 1.7220alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤210HBS ; 4 Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS C/C 6.Production leadtime: 7~10 days 7. Chemical composition: C SI Mn Cr P S

Hot Rolled 16 ~ 205 MM AISI 4135 / JIS SCM435 / GB 35CrMo / DIN 1.7220 Alloy Steel Round Bar Description: 1. AISI 4135/JIS SCM435/GB 35CrMo/DIN 1.7220alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤210HBS ; 4 Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS C/C 6.Production leadtime: 7~10 days 7. Chemical composition: C SI Mn

150 ~ 600 AISI 5140 / ASTM 5140 / JIS SCR440/GB 40Cr Alloy Steel Round Bar For Machine Elements Description: 1 AISI 5140/ASTM 5140/JIS SCR440/GB 40Cr alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤210HBS ; 4.Machine Capability Tensile strength (N/mm2Mpa): >=835 Elongation %: >=10 Yield strength: >=540 Hardness: HBS<=179 Reduction of area: >=40% 5.Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging

EN31 Alloy Steel Round Bar Hot Rolled / Forged For Construction Description: 1. EN31/Gcr15/SAE52100 Alloy Steel Round Bar 2. Hot rolled or forged condition, annealing or harden, black or milled surface 3. Pre-heat treatment: Annealing: heat to 840-860c, keep 2H, furnace cold, hardness≤217HBS High temperature tempering : heat to 680-700c, air cold, hardness ≤217HBS 4. Heat treatment: Normalization: heating to 840 to 880 C, maintenance, furnace cooling to 600 C, then in air.

Hot Rolled Aisi 4340 Alloy Steel Round Bar With Machined Surface Description: 1.AISI 4340/GB40CrNiMo/DIN 1.6511 alloy steel round bar 2.Hot rolled or forged condition, annealing , black or machined surface 3.Hardness: ≤220HBS ; 4 Hot rolled technology: EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS D/D or E/E 6.Production leadtime: 7~10 days 7. Chemical composition: C Si Mn S P Cr Ni Mo 0.37~0.44 0.17

Hot Rolled Alloy Steel Round Bar For Boiler Heat Exchangers Description: 1.EN31/Gcr15/SAE52100 Alloy Steel Round Bar 2.Hot rolled or forged condition, annealing or harden, black or milled surface 3.Pre-heat treatment: Annealing : heat to 840-860c, keep 2H, furnace cold, hardness≤217HBS High temperature tempering : heat to 680-700c, air cold, hardness ≤217HBS 4.Heat treatment: Normalization: heating to 840 to 880 C, maintenance, furnace cooling to 600 C, then in air. Stress

Alloy Steel Round Bar AISI 4140 / DIN 1.7225 With Forged Condition Alloy steel / Alloy tool steel / tool steel Forged 150 ~ 600 MM AISI 4140 / JIS SCM440 / GB 42CrMo / DIN 1.7225 Alloy Steel Round Bar with Milled surface Description: 1.DIN1.7225/SAE4140/GB42CrMo,JIS SCM440 alloy steel round bar 2.Forged condition, annealing or harden, milled surface 3.Pre-heat treatment: Annealing : heat to 840-860c, keep 2H, furnace cold, hardness≤217HBS High temperature tempering : heat to

Black Surface Hot Rolled Alloy Steel Round Bar With High Tenacity Description: 1.EN31/Gcr15/SAE52100 Alloy Steel Round Bar 2.Hot rolled or forged condition, annealing or harden, black or milled surface 3.Pre-heat treatment: Annealing : heat to 840-860c, keep 2H, furnace cold, hardness≤217HBS High temperature tempering : heat to 680-700c, air cold, hardness ≤217HBS 4.Heat treatment: Normalization: heating to 840 to 880 C, maintenance, furnace cooling to 600 C, then in air.

Forged Alloy Steel Plate AISI 4340 With QT Machined Surface Description: 1.AISI 4340/GB40CrNiMo/DIN 1.6511 alloy steel plate 2.Hot rolled or forged condition, annealing , black or machined surface 3.Hardness: ≤220HBS ; 4 Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS D/D or E/E 6.Production leadtime: 7~10 days 7. Chemical composition: C Si Mn S P Cr Ni Mo 0.37~0.44 0.17-0.37 0.5~0

DIN1.7225 / SAE4140 / GB42CrMo, JIS SCM440, Alloy Steel Round Bar Description: 1.DIN1.7225/SAE4140/GB42CrMo,JIS SCM440 alloy steel plate 2.Hot rolled or forged condition, annealing or harden, black or milled surface 3.Pre-heat treatment: Annealing : heat to 840-860c, keep 2H, furnace cold, hardness≤217HBS High temperature tempering : heat to 680-700c, air cold, hardness ≤217HBS 4.Heat treatment: Normalization: heating to 840 to 880 C, maintenance, furnace cooling to 600 C,

Forged DIN1.7225 / SAE4140 / GB42CrMo,JIS SCM440, Alloy Steel Bar With 150 ~ 600 MM Description: 1.DIN1.7225/SAE4140/GB42CrMo,JIS SCM440 alloy steel plate 2.Hot rolled or forged condition, annealing or harden, black or milled surface 3.Pre-heat treatment: Annealing : heat to 840-860c, keep 2H, furnace cold, hardness≤217HBS High temperature tempering : heat to 680-700c, air cold, hardness ≤217HBS 4.Heat treatment: Normalization: heating to 840 to 880 C, maintenance, furnace

Annealing AISI 5140/ASTM 5140/JIS SCR440/GB 40Cr Alloy Steel Round Bar Description: 1. AISI 5140/ASTM 5140/JIS SCR440/GB 40Cr alloy steel round bar 2.Hot rolled or forged condition, annealing , black or milled surface 3.Hardness: ≤210HBS ; 4.Machine Capability Tensile strength (N/mm2Mpa): >=835 Elongation %: >=10 Yield strength: >=540 Hardness: HBS<=179 Reduction of area: >=40% 5. Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface

High strength Alloy Steel Flat Bar AISI 4340 Hot rolled / Forged Description: 1.AISI 4340/GB40CrNiMo/DIN 1.6511 alloy steel 2.Hot rolled or forged condition, annealing , black or machined surface 3.Hardness: ≤220HBS ; 4.Hot rolled technology:EAF+LF+VD Forged technology: EAF+LF+VD+ESR+Forging+QT+Machined surface 5.Ultrasonic test standard: SPE1921-GR3, CLASS D/D or E/E 6.Production leadtime: 7~10 days 7.Chemical composition: C Si Mn S P Cr Ni Mo 0.37~0.44 0.17-0.37 0.5~0.8 ≤0

Milled Surface DIN1.7225 / SAE4140 / GB42CrMo,JIS SCM440, Alloy Steel Round Plate Description: 1.DIN1.7225/SAE4140/GB42CrMo,JIS SCM440 alloy steel plate 2.Hot rolled or forged condition, annealing or harden, black or milled surface 3.Pre-heat treatment: Annealing : heat to 840-860c, keep 2H, furnace cold, hardness≤217HBS High temperature tempering : heat to 680-700c, air cold, hardness ≤217HBS 4.Heat treatment: Normalization: heating to 840 to 880 C, maintenance, furnace