Audited Supplier
4340
Technical/Sample/Quality
One Year
Seamless
Rolled or Forged
Alloy Steel
Black/Peeled/Polished
Oil/Gas Drilling
Round
SHUNFU
Anticorrosion Seaway Packages
OD 30-850mm
China
Product Description
| Advantage | Thick Wall, Precision Dimension, +QT, Polished Surface, API certificated |
| Standard | API 5CT, |
| Grades | 4130, 4140, 4145, 4145H, 4145H MOD, 4330V, 4317, 4340, ETC |
| Category | Seamless Round Steel Tube |
| Outside diameter inch | 0.405 to 34 |
| Inside diameter inch | 0.049 to 1.25 |
| NPS | 1/8 to 34 |
| Outside diameter mm | 10 to 864 |
| Inside diameter mm | 1 to 80 |
| Length Meter | Max 15 |
| Length Foot | Max 49 |
| Process | Forged or Hot rolled+cold drawn or Borehole |
| Heat treatment | Normalized ; Annealed ; Quenched and Tempered etc |
| Surface condition | Black, Peeled, Polished etc |
| Test | Tensile strength, Yield strength, elongation, impact value, hardness, grain size, ultrasonic test, magnetic particle testing, etc. |
| Packing | Sea worth standard exporting packing |
| Shipping term | In bulk / FCL / LCL, partial shipment allowed |
| Trade term | FOB, CIF, CFR, DDU etc |
| Payment | TT, LC etc |
| Delivery time | Within 7 days for stocks and 30 days for production |
Applications:
ASTM A519 AISI 4340 Steel Pipe can be made into gears, pinions, cams, cranks, clutch shafts, shafting, die cases, and a multitude of machinery parts and components etc
Dimensions:
| Process | Outer Diameter | Wall Thickness | Length |
| Cold Drawn | 1/4 - 16 Inch | 1/50 - 1 5/8 Inch | 12000 mm max |
| Hot Rolled | 1 1/2 - 30 Inch | 1/8 - 8 Inch | 12000 mm max |
Steel Grade Comparison
| ASTM | AS | DIN | BS | JIS | GB |
| 4340 | 4340 | 1.6565 / 40CrNiMo6 | EN24 / 817M40 | SNCM439 / / SNCM8 | 40CrNiMo |
Chemical Composition (%):
| C | Mn | Si | P | S | Cr | Ni | Mo |
| 0.37-0.44 | 0.55-0.90 | 0.10-0.35 | 0.040 max | 0.040 max | 0.65-0.95 | 1.55-2.00 | 0.20-0.35 |
Delivery dondition:
HF: Hot Finished, CW; Cold Worked, SR: Stress Relieved or Finish Anneal, A: Annealed,:
N: Normalized, Q+T: Quenched and temperedTube ends:
The tubes come with square cut and deburred ends.Certification:
The product is supplied with 3.1.B inspection certificate, according to the standards EN 10204 and ISO 10474.Identification and Marking:
The tubes are marked in indelible ink, the details being repeated along the entire length of each tube and on a label, as follows:Manufacturer's trademark - manufacturing standard - dimensions -steel grade - supply condition - cast no. - item number.
Packaging:
The tubes come in strapped bundles. The minimum weight of each bundle is 2000kg; the maximum bundle weight being 5000kg, with a minimum of 4 pieces4340 ALloy Steel Pipe, mechanical Tubing, Hollow Bar, 4340, 1.6565, 40CrNiMo6, EN24, 817M40, SNCM439 , SNCM8, 40CrNiMo
