Transmission-shaft stock; Round stock for machining; Shaft parts requiring a 40Cr base.
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40Cr, quenched and tempered
40Cr Q&T Ground Round Bar
Ground bar for shaft orders specifying 40Cr in a quenched-and-tempered condition, with dimensions and hardness agreed per order.
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SPECIFICATION REVIEW
Confirm the order requirements before feasibility
Use this table to structure technical discussion. It is not a promise of stock, size range or universal delivery values.
| Product | 40Cr Q&T Ground Round Bar |
|---|---|
| Material / condition | 40Cr, quenched and tempered |
| Heat-treatment route | Quenched and tempered |
| Surface | Ground finish; roughness and appearance agreed per order |
| Dimensions & tolerance | Confirmed by drawing, diameter, length and measurement method. 0.02 mm is a tolerance-band capability, not a universal default. |
| Inspection & documents | Test items, sampling, reports and acceptance criteria are agreed before order placement. |
If the final working surface requires hard chrome, confirm whether to select a chrome-plated product or reserve the part for downstream surface treatment.
SELECTION NOTES
Confirm before ordering
- 40Cr material specification
- Q&T condition confirmed by order
- Dimensions and tolerances reviewed against drawing
- Diameter, length, quantity, packing and delivery location
- Inspection method, sampling plan and acceptance criteria
APPLICATION DIRECTIONS
Match to the real operating condition
- 01Transmission-shaft stock
- 02Round stock for machining
- 03Shaft parts requiring a 40Cr base
PROCESS & QUALITY
Translate product requirements into checkable process points
- 01
Material condition
Review material and heat-treatment condition.
- 02
Dimensional processing
Follow the agreed process route and control critical dimensions.
- 03
Surface & inspection
Confirm grinding, chrome, hardness and appearance items for the product route.
- 04
Identification & packing
Identify, protect and prepare the product as agreed in the order.
RELEVANT PROCESS CAPABILITY
Technical baselines relevant to this product route
010.02 mmdrawing-based tolerance-band capability
Only capabilities relevant to this product route are shown. They are not default values for every size; final parameters must be confirmed against the drawing and application before order placement.
Inquire about 40Cr Q&T Ground Round Bar
Include the drawing, application, quantity and mandatory acceptance items where possible.
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