Industrial Thin Wall Steel Tubing Alloy Steel Seamless Tubes High Precision
Price:
Negotiation
MOQ:
1 tons
Delivery Time:
45 days
Brand:
New Era
Product Description
JIS SACM645 ISO 41CrAlMo74 BS 905M39 905M31 Alloy Steel tubes steel pipes for boring bar and machine spindle
Additional technical requirements for steel grade 38H2MUA pipes
Chemical composition, %
| С | Мп | Мо | Р | S | Si | Сг | Аl | |
|
SACM645 41CrAlMo74 BS905M39 |
0,35±0.01 | 0.30±0.02 |
0.15± 0.02 |
≤ 0.025 | ≤0.025 |
0.20± 0.02 |
1.35± 0.05 |
0.70± 0.1
|
| Our tolerance | ±0.05 | ±0.1 | ±0.05 | Same | Same | ±0.1 | ±0.2 | ±0.2 |
Mechanical properties:
| steel | yield (N/ mm²) |
tensile (N/ mm²) |
elongation % | Hardness, HB max |
|
SACM645 41CrAlMo74 BS905M39 |
420 | 617 | 12 | 250 |
Size list:
| OD, mm | WT, mm | L, mm* |
| 159.0 | 25 | 3 700.0 |
| 144 | 16 | 4 000.0 |
| 71.0 | 8.50 | 4 200.0 |
| 83.0 | 9.00 | 4 200.0 |
- Heat treatment should be made in protective atmosphere during the process of production
- Pipe surface should be jeopardized by chemical etching without immunization.
- preservative oil is impossible
|
Steel |
Heat treatment |
||||||
|---|---|---|---|---|---|---|---|
|
Quench |
Tempering |
||||||
|
Temperature, °С |
Cooling sphere |
Temperature, °С |
Cooling sphere |
||||
|
1st quench or normalization |
2nd quench |
||||||
|
SACM645 41CrAlMo74 BS905M39 |
940 | - | Water or oil | 640 | Water or oil | ||
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Company
NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
Location
No.101 Shijing East Road, Tudian Town, Tongxiang, China
Contact Person
Denny