China supplier customized worm spur material pinion gear shaft
We are a direct OEM factory to supply machine parts according to drawings. Here are some details of the products for your reference.
1. Main products: Forging & Casting Parts, Shafts, Gears, Shaft Couplings, Stabilizer, BOP Body, Die Forging Mould, Mining Machinery Parts etc.
2. Materials: Carbon steel, Alloy steel
3. Supplying range: Shafts, Sleeves, Rings, Cylinders, Blocks, Modules etc
4. Process: Forging/Casting – Normalizing & Tempering – Proof Machining- Quenching & Tempering – Finish Machining
We can offer you in various process conditions.
5. QA DOC.: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report
The data on chemical composition report and mechanical properties report are approved by third party, Luoyang Ship Material Research Institute, CSIC.
UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.
Heat Treatment Report: provide original copy of heat treatment curve/time table.
Steel Ingot: EAF-LF-VD/ESR. Material Certificate according to En10204-3.1 is requested from ingot supplier.
| Product name | Gear shaft |
| Material | Carbon steel, Alloy steel |
| Material Standard | GB, EN, DIN, ASTM, GOST, JIS, ISO |
| Material Processing | Forging, Casting, Welding |
| Heat Treatment | Annealing, Normalizing, Q&T, Induction Hardening |
| Machining Tolerance | Max. 0.01mm |
| Machining Roughness | Max. Ra 0.4 |
| Module of Gear | 8-60 |
| Accuracy of Teeth | Max. ISO Grade 5 |
| Weight/Unit | 100kgs - 60 000kgs |
| Application | Mining, Cement, Construction, Chemical, Oil Drilling, Steel Mill, Sugar Mill and Power Plant |
| Certification | ISO 9001 |
Pinion gear material
42CRMO STEEL DATA
CHEMICAL LIST
C : 0.38-0.45%
Si: 0.17-0.37%
Mn: 0.50-0.80%
S : Allow residual content <0.035%
P : Allow residual content <0.035%
Cr: 0.90-1.20%
Ni: Allow residual content <0.030% Cu: Allow residual content <0.030%
Mo: 0.15-0.25%
MECHANICAL DATA
Tensile Strength σb (MPa): >1080(110)
Yield point σs (MPa): >930(95)
Elongation σ5 (%): >12
Reduction of area ψ (%): >45 Akv (J): Impact absorbing energy Akv(J): >63
Impact toughness value αkv (J/cm2): >78(8)
Hardness: <217HB
Sample size: The blank size of the sample is 25mm
PHYSICAL DATA
Critical point temperature (approximate value): Ac1=730ºC, Ac3=800ºC, Ms=310ºC
Linear expansion coefficient: temperature: 20~100ºC/20~200ºC/20~300ºC /20 ~400ºC/20~500ºC /20~600ºC
linear expansivity: 11.1x10K/12.1x10K/12.9x10K/13.5x10K/13.9x10K14.1x10K
| item | remaek |
| normal materials | 35crmo, 42crmo |
| better materials | 17crnimo6,20crmoA |
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