| After-sales Service: | 7*24hours Online |
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| Warranty: | 12 Months |
| Type: | Steel Plate |
| Standard: | ASTM, AISI, GB, JIS, DIN, BS |
| Certification: | ISO, RoHS, IBR |
| Surface Treatment: | Blackface |
| Samples: |
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| Customization: |
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Audited Supplier The heat treatment process of 42CrMo mainly includes four processes: annealing, normalizing, quenching, and tempering. Among them, annealing process is used to eliminate internal stress and improve processing performance; Normalizing process is used to improve the strength and hardness of materials; Quenching process is used to improve the strength, hardness, and wear resistance of materials; The tempering process is used to reduce the brittleness of the material and improve its toughness.
The delivery hardness of 42CrMo is usually 240-270HB. After normalizing, the hardness can reach 280-320HB, after quenching, the hardness can reach 50-55HRC, and after tempering, the hardness can reach around 50HRC. Different heat treatment processes will have different effects on the hardness, strength, and toughness of materials.
Hot rolling can be divided into ordinary carbon structural steel, low alloy steel, and alloy steel according to their different materials and properties. According to their different uses, they can be divided into: cold formed steel, structural steel, automotive structural steel, corrosion-resistant structural steel, mechanical structural steel, welded gas cylinder and pressure vessel steel, pipeline steel, etc.
Production process
The hot-dip galvanized hot-rolled sheet production line adopts the improved Sengimir annealing process, with the raw material being hot-rolled and pickled sheet coils. The production process is as follows:
Hot rolled pickling plate coil → uncoiling → cutting head and tail → welding → inlet looper → improved Sengimir method horizontal annealing furnace → hot galvanizing → cooling after plating → zinc layer thickness gauge → smooth leveling and straightening → passivation treatment → inspection table → electrostatic oiling → coiling → weighing and packaging → finished product warehousing.
| Specification | |
Steel Grade |
GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B,Q235R Q345R Q345B,Q345C,Q345D,Q345E,Q390A,Q390B,Q390C,Q390D,Q390E,Q420,Q420B,Q420C,Q420DQ420E,Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D,Q620E,Q690D,Q690E EN: S185, S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade 42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80 JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE AISI SAE4140 4145 1020 1Cr5mo 1050 1045 1070 1080 50Crv 12Cr1mov 16Mo3 15Crmo 20Crmo 20Cr 20Mncr5 25CrMo4 35CrMo 40Cr 42Crmo4 NM360 NM400 NM450 NM500 NM550 65MN |
| Standard | GB/T709-2006, ASTM A36, JIS G4051, DIN EN 10083, SAE 1045, ASTM A29M |
| Thickness | 0.15mm-300mm |
| Width | 500-2250mm |
| Length | 1000mm-12000mm or according to customer's special request |
| Tolerance | Thickness: +/-0.02mm, Width:+/-2mm |
| MOQ | 2 Tons |
Application |
1.Automobile, Bridges, Buildings. 2.Machinery, Pressure vessel industries. 3.Ship building, Engineering construction. 4.Mechanical manufacturing, Pavement slab, ect. |
| Package | Bundle with steel strip,Container shipping |
| Capacity | 200000 tons /month |
| Mill MTC | can be supplied before shipment |
| Inspection | The Third Party inspection can be accepted BV |
Q1. Are you trading company or manufacturer ?
A: We are professional manufacturer, providing a wide range of steel products.
Q2. Do you provide samples ?
A: Yes ,we would provide samples For Free . The courier freight will be covered by customer's account.
Q3.what about the payment terms ?
A: We accept different payment terms like T/T, L/C , Cash, Western Union, Alibaba online paying etc .
Q4.How about the delivery time?
A: Normally it takes 7-15 days since order confirmation.
Q5. Could you customized as our request?
A: Yes, just tell your demands, we can offer the customized solution for you, such as material, hardness, thickness,width and so on.
Q6.How can I visit your factory ?
A: Welcome to visit our factory at any time. We will help you accessing the business visa to China . Assist arranging your
schedule in China ,including the factory visiting , products quality checking , car picking up, hotel booking , food service etc
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Audited Supplier 
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