Industrial Thin Wall Steel Tubing Alloy Steel Seamless Tubes High Precision
Basic Properties
Place of Origin:
China
Brand Name:
New Era
Certification:
ISO9001,TS16949
Model Number:
GOST8734-75
Trading Properties
Minimum Order Quantity:
1 tons
Price:
Negotiation
Payment Terms:
T/T
Supply Ability:
3000 tons/month
Product Summary
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...
Product Details
Highlight:
seamless alloy steel tube
,alloy steel seamless tubes
,alloy round tube
Material:
SACM645 41CrAlMo74 BS905M39
Delivery Condition:
HR, CW, SR, A, N
OD Size:
6-108mm
WT Size:
1-15mm
Surface:
Free Of Oxide Scale
Application:
Mechanical Purpose
Product Name:
Round Steel Tubing
Advantage:
Excellent Strength And Durability
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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