Blast Joint 4140-80K/4140-110K
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Project location: Thailand
Product: Blast Joint
1. Blast Joint 3.063" OD x 1.610" ID x 18.00" OAL
250Ra OD 64Ra ID
Grade : AISI 4140-80K
Quantity: 2 pieces
2. Blast Joint 2.350" OD x 1.6" ID x 6FT
250Ra OD 64Ra ID
Grade : AISI 4140-80K
Quantity: 4 pieces
3. Blast Joint 2.350" OD x 1.6" ID x 10FT
250Ra OD 64Ra ID
Grade : AISI 4140-110K
Quantity: 4 pieces
1. Blast Joint 4140-80K
Chemical composition:
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | Al | V | Nb | Ti | Di(inch) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.41 | 0.23 | 0.95 | 0.009 | 0.003 | 1.05 | 0.18 | 0.22 | 0.10 | 0.030 | 0.008 | 0.002 | 0.0065 | 6.34 |
Mechanical Properties:
| Yield Strength(Mpa) | Tensile Strength(Mpa) | Elongation A(%) | Reduction Z(%) |
|---|---|---|---|
| 595 | 728 | 27 | 66 |
2. Blast Joint 4140-110K
Chemical composition:
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | Al | V | B |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.44 | 0.24 | 0.98 | 0.010 | 0.003 | 1.07 | 0.18 | 0.22 | 0.12 | 0.023 | 0.008 | 0.0003 |
Mechanical Properties:
| Yield Strength(Mpa) | Tensile Strength(Mpa) | Elongation A(%) | Reduction Z(%) |
|---|---|---|---|
| 933 | 1047 | 19 | 57 |
ETANG has just successfully delivered a batch of blast joint to a long-standing customer in Thailand. All delivered products have been processed, heat-treated, and surface-treated strictly in accordance with international standards to ensure their reliability, wear resistance, and durability in complex downhole environments.

ETANG has always been committed to providing high-quality tubular products and raw material inventory support to customers in the oil and gas sectors worldwide.
The company maintains a stable and abundant inventory, including S13Cr, L80-13Cr, 4140/4145 (80K/110K/140K), as well as 4145 pipe/bar, etc., enabling quick response to customers' engineering needs.
