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{"id":1818,"date":"2023-08-31T14:13:35","date_gmt":"2023-08-31T14:13:35","guid":{"rendered":"https:\/\/waldunsteel.com\/?post_type=portfolio&p=1818"},"modified":"2023-11-13T02:58:32","modified_gmt":"2023-11-13T02:58:32","slug":"aisi-4130qt-steel-bars","status":"publish","type":"portfolio","link":"https:\/\/waldunsteel.com\/fr\/des-produits-2\/barres-en-acier-aisi-4130qt\/","title":{"rendered":"AISI 4130+QT Steel Bars"},"content":{"rendered":"

AISI 4130+QT Steel Bars<\/b><\/strong><\/h1>\n

\"AISI<\/p>\n

AISI 4130+QT Steel Bars manufacturers and suppliers,supplied with round rods,square\/flat bars,rollers,shafts,blocks and forging pieces.<\/b><\/strong><\/p>\n

AISI 4130+QT Steel Bars grade is a low-alloy steel including chromium and molybdenum as strengthening elements which has good strength and toughness,weldability and machinability. AISI 4130+QT Steel Bars\u00a0is widely used in the oil and gas industry. Typical applications include components such\u00a0as valve \u00a0bodies, pumps and fittings.<\/p>\n

AISI 4130+QT Steel Bars<\/b><\/strong>\u00a0<\/b><\/strong>Chemical Composition per ASTM A29; Mechanical Properties per API 6A – 60K,75K<\/b><\/strong><\/h2>\n\n\n\n\n
GRADE<\/b><\/strong><\/td>\nC<\/b><\/strong><\/td>\nSi<\/b><\/strong><\/td>\nMn<\/b><\/strong><\/td>\nP<\/b><\/strong><\/td>\nS<\/b><\/strong><\/td>\nCr<\/b><\/strong><\/td>\nMo<\/b><\/strong><\/td>\n<\/tr>\n
4130+QT<\/b><\/strong><\/td>\n0.28-0.33<\/td>\n0.15-0.35<\/td>\n0.40-0.60<\/td>\n\u2264 0.035<\/td>\n\u2264 0.040<\/td>\n0.80-1.10<\/td>\n0.15-0.25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

AISI 4130+QT Steel Bars<\/b><\/strong>\u00a0<\/b><\/strong>SIZE TOLERANCE&PROCESS<\/b><\/strong><\/h2>\n\n\n\n\n\n\n\n
Shape<\/td>\nSize(mm)<\/td>\nProcess<\/td>\nTolerance<\/td>\nLength(mm)<\/td>\n<\/tr>\n
Round<\/td>\n\u03a66-\u03a650<\/td>\nCold Drawn<\/td>\nH11<\/td>\n3000-5800<\/td>\n<\/tr>\n
Round<\/td>\n\u03a640-\u03a6300<\/td>\nHot Rolled<\/td>\n-0\/+3mm<\/td>\n3000-10000<\/td>\n<\/tr>\n
Round<\/td>\n\u03a6120-\u03a61000<\/td>\nHot Forged<\/td>\n-0\/+3mm<\/td>\n3000-10000<\/td>\n<\/tr>\n
Flat\/Square\/Block<\/td>\nThickness:120-800
\nWidth:120-1500<\/td>\n		Hot Forged<\/td>\n-0\/+3mm<\/td>\n500-6000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

AISI 4130+QT Steel Bars<\/b><\/strong>\u00a0<\/b><\/strong>HEAT TREATMENT<\/b><\/strong><\/h2>\n

Normalizing For AISI 4130+QT Steel Bars<\/b><\/strong>
\n1.Nominal normalizing temperature:850-900\u00b0C
\n2.Hold the temperature for several hours
\n3.Cooling in the air<\/p>\n

Annealing For AISI 4130+QT Steel Bars<\/b><\/strong>
\n1.Nominal Annealing\u00a0temperature:690-720\u00b0C
\n2.Cool slowly in the furance
\n3.Maximum Brinell hardness of 225<\/p>\n

Hardening and Tempering(QT) For AISI 4130+QT Steel Bars<\/b><\/strong><\/p>\n

1.Nominal Hardening temperature:860-890\u00b0C
\n2.Hold at this temperature then quench in oil or water
\n3.Tempering \u00a0as soon as possible when the temperature low to ambient
\n4.Heat uniformly to the suitable temperature of 550-640\u00b0C
\n5.keep the material out of the furnace ,then cool in the air<\/p>\n

AISI 4130+QT Steel Bars<\/b><\/strong>\u00a0<\/b><\/strong>MECHANICAL PROPERTY(\u00a0FOR REFERENCE ONLY)<\/b><\/strong><\/h2>\n

1.Tensile strength: 940MPa
\n2.Yield point: 790MPa
\n3.Percentage reduction of area after fracture: 52%
\n4.Elongation after fracture: 13%
\n5.Impact test (+20\u00b0C): Transverse \u2013 27~35J; Longitud \u2013 47~50J<\/p>\n

AISI 4130+QT Steel Bars<\/b><\/strong>\u00a0<\/b><\/strong>DELIVERY CONDITION<\/b><\/strong><\/h2>\n

1.Shape:Round\/Square \/ Flat\/Shafts\/Rollers\/Blocks
\n2.Surface condition:Black surface\/Bright surface
\n3.Heat Treatment:Normalized\/Annealed\/QT
\n4.Straightness:Max 3mm\/m(Enhanced straightness may be available on request)
\n5.Length:3000-5800mm suitable for 20\u2033container. \u00a0above 6000mm,suitable for 40\u2033 container
\n6.Grain Size: 5-8 acc to ASTM E112-96
\n7.Ultrasonic Standard: Sep1921\/ASTM A388\/EN 10228-3
\n8.Typical Hardness:HB207-235
\n9.Non Metallic Inclusion:\u00a02 max acc to ASTM E45 \/K4\u226420 acc to\u00a0DIN 50602
\n10.Forging Ratio:\u00a0minimum 4 : 1
\n11.Marking:\u00a0Grade\/Weight\/Length\/Size\/Heat Number<\/p>\n

AISI 4130+QT Steel Bars<\/b><\/strong>\u00a0<\/b><\/strong>QUALITY CERTIFICATION<\/b><\/strong><\/h2>\n

A material test report(Inspection Certificate EN 10204 3.1) will be provided, documenting the following:
\n1.Chemical analysis
\n2.Mechanical properties
\n3.Surface hardness
\n4.Non Metallic Inclusion
\n5.Heat Treatment Process
\n6.Grain size
\n7.Forging ratio
\n8.NDE test method\/criteria<\/p>\n<\/div><\/section><\/div>

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Latest Products<\/h3>