Oil Drill Rods Alloy Steel Seamless Pipes Round Steel Tubing High Strength
Brand Name:New Era
Certification:ISO9001,TS16949
Model Number:GOST8734-75
Minimum Order Quantity:1 tons
Delivery Time:45 days
Payment Terms:T/T
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73x8.5 83x9 38Cr2MoAlA 38CrMoAl 38H2MUA 38X2МЮА Alloy steel
seamless pipes for oil drill rods.
Additional technical requirements for steel grade 38H2MUA pipes
Asortment:
-ID 28mm, WT 1,2 mm
- ID З Зmm., WT 1,Зmm
- ID 39,4mm, WT 1,3 mm
- ID 45,4mm, WT 1,3 mm
- GOST 8734-75
- 3750mm
- Curvature shouldn’t exceed 1mm for 1m
- Mechanical properties, heat treatment should correspond to GOST 8734-75, 8733-74, group V
Chemical composition, %
| С | Мп | Мо | Р | S | Si | Сг | Аl | |
| GOST 4543-75 | 0,35±0.01 | 0.30±0.02 | 0.15± 0.02 | No more than 0.025 | No more than 0.025 | 0.20± 0.02 | 1.35± 0.05 | 0.70± 0.1 |
- 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
| Order for CDS acc GOST 8734-75 steel 38Cr2MoAlA (38X2МЮА) | |||||
| Report No 824-97 | |||||
Steel | Heat treatment | ||||||
|---|---|---|---|---|---|---|---|
Quench | Tempering | ||||||
Temperature, °С | Cooling sphere | Temperature, °С | Cooling sphere | ||||
1st quench or normalization | 2nd quench | ||||||
| 38Х2МЮА (38ХМЮА) | 940 | - | Water or oil | 640 | Water or oil | ||
Oil Drill Rods Alloy Steel Seamless Pipes Round Steel Tubing High Strength
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