AISI SAE 4340 Alloy Steel Tube +Qt Hollow Bar

• Customization: Available
• After-sales Service: Technical/Sample/Quality
• Warranty: One Year
• Model NO.: 4340
• Type: Seamless
• Technique: Rolled or Forged
• Material: Alloy Steel
• Surface Treatment: Black/Peeled/Polished
• Usage: Oil/Gas Drilling
• Section Shape: Round
• Transport Package: Anticorrosion Seaway Packages
• Specification: OD 30-850mm
• Trademark: SHUNFU
• Origin: China
• Production Capacity: 100000 Tons Per Year

Product Description

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

Company Profile

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 tempered

 Tube 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 pieces
 
4340 ALloy Steel Pipe, mechanical Tubing, Hollow Bar, 4340, 1.6565,  40CrNiMo6, EN24,  817M40, SNCM439 , SNCM8, 40CrNiMo