Active Member
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[China]
Address: Building 1, Cross-border E-commerce Industrial Park, Comprehensive Bonded Zone, Zhengpugang New District, Ma’anshan City, Anhui Province
Contact name:kelly Wang
Maanshan Kingrail Technology Co.,Ltd. |
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OEM Factory Custom Precision Steel Forging Cars Auto Parts Machining Products
OEM Forging | |
Main Process | Material Cutting, Material Heating, Forging, Heat Treatment,
Blasting&Polishing, CNC Machining |
Material | Aluminum, Carbon Steel, Stainless Steel Brass, ,DC53 or as customer
request |
Surface Treatment | Shot/sand blast, Polishing, Surface Passivation, Primer Painting ,
Powder Coating, ED- Coating, Chromate Plating, Zinc Plating,
Dacromat Coating, Finish Painting |
Application | 1. Construction: lifting anchors for precast concrete, spherical
head anchors 2. Automotive industry: piston, connecting rods, cams, camshafts, crankshafts 3. Heavy machinery: Rock breaker, excavator parts 4. Energy: Anvil, gate valve, wellhead control EQP, wellhead EQP 5. Defense: Black receiver, aluminum trigger guards and receivers 6. Truck: Cylinder heads, oil sump, clutch housing, front and rear brake calipers. |
Machining Process | CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling/
Tapping/ Broaching/ Reaming /Grinding/Honing and etc. |
Machining Tolerance | From 0.005mm-0.01mm-0.1mm |
Drawing Format | jpg/.pdf/.dxf/.dwg/.igs./.stp/x_t. etc |
Testing Machine | CMM, Digital Height Gauge, Caliper, Coordinate Measuring Machine,
Projecter Machine, Roughness Tester, Hardness Tester and so on |
| Certificate | ISO9001, CE, TUV, SGS or as your requirement to do test by the third party |
| Delivery time | 10-15 days for sample, 35-40 days for bulk order |
| Packing | Plywood pallet, plywood box or as per your requirement |
| Quality Control | Conducted by ISO9001 System and PPAP Quality control documents |
| Service | Warm and quick response service provided by the professional Export Sales Team with many years' experience in handling exports to the US, Europe, Japan and other countries and regions. |
SCM440 SCM435 4130 4140 4145 forged bars forging shaft forged parts
Forged Alloy Steel Round Bar 4140 1.7225
Hot forging steel bar
Forged parts
SCM440 SCM435 4130 4140 4145 forged bars
1. Chemical Composition (%):
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 42CrMo4 | 0.38-0.45 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.25 |
| 1.7225 | 0.38-0.45 | ≤0.40 | 0.60-0.90 | ≤0.025 | ≤0.035 | 0.90-1.20 | 0.15-0.30 |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
2. Available sizes:
Round: Dia. 16 - 1000mm
16mm-350mm with hot rolled supply condition;
200-1000mm with forged supply condition
3. Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.
4. Applications:
Statically and dynamically stressed components for vehicles,
engines and machines. For parts of larger cross-sections,
crankshafts, gears.
5. Heat Treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
6. Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3
CLASS C/C
7. Packing situation: standard seaworthy packing or as customer required
8. Delivery time: 30 days after order confirmed
9. Process: EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) +
Heat Treatment (optional)
Further details of
Product Description OEM Factory Custom Precision Steel Forging Cars Auto Parts
Machining Products:
1) 15years' production experience
2) could help customer design the mold and offer valued suggestions
to reduce costs for customer
3) ISO9001-2008 certified
4) OEM & ODM both accepted.
5) PPAP documents is available if needed.
Available Information:
| Process | Material Available |
| Investment Casting | Plain Carbon Steel,Alloy Steel,Stainless Steel |
| Sheet Metal Fabrication | SPCC,SHCC,SECC,SGCC,Cooper,Aluminum Plate,Aluminum Extrusions,Stainless Steel |
| Sand Casting | Steel,Alloy Steel,Gray Iron,Ductile Iron,Aluminum,Cooper |
| Lost Foam Casting | Gray Iron,Ductile Iron |
| Die Casting | Aluminum Alloys,Zinc Alloys |
| Forging | Plain Carbon Steel,Alloy Steel,Stainless Steel,Aluminum,Cooper |
| Stamping | Steel Plate Cold Commercial,Steel Plate Hot Commercial,SPTE,SUS |
| Powder Metallurgy | Iron,Carbon Steel,Cooper Iron,Iron-Nickel,Nickel Steel,Stainless Steel |
| Additional machining | turning , milling, drilling, grinding, threading, CNC machining, etc. |
Some forging equipments
Main Production Equipment List
| No. | Equipment | Type | Qty | Status | Note |
| 1 | Vertical lathe | VTC6070 | 36 | working | Finishing workshop |
| 2 | VMC | AVL-860 | 3 | working | Finishing workshop |
| 3 | VMC | VMC850B | 14 | working | Finishing workshop |
| 4 | Multi-function machine | HTC2050n | 20 | working | Finishing workshop |
| 5 | CAK | 5085di | 10 | working | Finishing workshop |
| 6 | Steyr CNC lathe | CK7520ACK50 | 8 6 | working | Finishing workshop |
| 7 | Milling and drilling machine | XZ8210C | 2 | working | Finishing workshop |
| 8 | CNC milling and drilling machine | TY-ZT5060 | 6 | working | Finishing workshop |
| 9 | OD milling machine | MB32BX500 | 2 | working | Finishing workshop |
| 10 | Air compressor | HLGD-75 | 1 | working | Finishing workshop |
| 11 | Vertical drilling machine | Z5140A | 6 | working | Finishing workshop |
| 12 | CNC suspended tapping machine | SKXFGS.PS | 5 | working | Finishing workshop |
| 13 | CNC hobbing machine | YK3180CNC3 | 6 | working | Finishing workshop |
| 14 | Marking machine | HZP-90*160D etc. | 6 | working | Finishing workshop |
| 15 | Natural gas furnace | WLS-DZ-001 etc. | 2 | working | Forging workshop |
| 16 | Air hammer | C41-2000 etc. | 15 | working | Forging workshop |
| 17 | Press | J53-2500C etc. | 18 | working | Forging workshop |
| 18 | Ring rolling machine | D51-450A etc. | 8 | working | Forging workshop |
| 19 | Electric furnace | KGPS-600KW etc. | 10 | working | Forging workshop |
| 20 | Compressor | 175A-20.5 etc. | 3 | working | Forging workshop |
| 21 | CNC sawing machine | GZ4232 | 16 | working | Raw material workshop |
| 22 | Automatic normalization furnace | HRDW-600KW | 8 | working | Heat treatment workshop |
| 23 | Suspended gas normalization furnace | WD-0138 | 2 | working | Heat treatment workshop |
| 24 | Shot blasting machine | Q3210,Q69 etc. | 4 | working | Finishing workshop |
Main Testing and Inspection Device
| No. | Device | Type | Qty | Status | Note |
| 1 | End quenching machine | DZJ-I | 1 | working | Testing |
| 2 | Electric resistance furnace | SX2-8-12 | 2 | working | Testing |
| 3 | Inverted metallurgic microscope | 4XCE | 1 | working | Inspection |
| 4 | High temperature box resistance furnace | SX2-4-13 | 1 | working | Testing |
| 5 | Automatic digital display Rockwell hard-tester | 200HRS-180 | 1 | working | Inspection |
| 6 | Electronic Brinell hardness tester | THB-3000 | 1 | working | Inspection |
| 7 | HR-150B Rockwell hardness tester | HR-150B | 1 | working | Inspection |
| 8 | Rapid multi-element analyzer | JS-DN328 | 1 | working | Inspection |
| 9 | Electric arc furnace | JSDL-8 | 1 | working | Testing |
| 10 | Rapid multi-element analyzer(C & S) | JS-DN328 | 1 | working | Inspection |
| 11 | Infrared thermometer | AR872 | 2 | working | Inspection |
| 12 | Portable chemical composition analyzer | AR872 | 2 | working | Inspection |
| 13 | Test specimen sampler | KW30-6 | 1 | working | Inspection |
