4140 seamless precision cold drawn steel pipe

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Product detail:

 4140 seamless precision cold drawn steel pipe

 

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Seamless Tubing sizes used in the oil and gas industry for above ground and down hole applications. A519-4140 material is stocked in the annealed, normalized or quenched and tempered conditions. The heat treated material is controlled to L80, P110, Q125 or the customer’s specified properties. The material is weldable but requires a pre-heat before welding.

American Piping Products Inc.  4140 Tubing:

A519-4140

L80, P110, Q125 heat treated mechanicals

2.5 to 15” OD

.375” to 4.000”

 

Zhangjiagang Huadian Import & Export Co., Ltd is a company based in China, we have two factories, one factory manufactures steel tubes and the other factory produces power station equipment.

Jiangsu Dehai Group (Parent Company)
Zhangjiagang Huadian Im &Ex Co., Ltd (Subsidiary)
Zhangjiagang Huagang IndustrialCo.,Ltd (Factory)	Specializes in the production of cold-drawn/cold-rolled precision seamless steel tubes,such as  bright oil tubes etc.
Zhangjiagang Huadian Power  Equipment Co.,Ltd (Factory)	A manufacturer of power station boiler, industrial boiler,  waste heat boiler, refusefired boiler, biomass boiler  and the correlated pressure parts integrating the design,  manufacture, installation, repair and maintance

 

Chemical composition(%)

	4130	4140	4142
Carbon max. %	0.28 - 0.33	0.38 - 0.43	0.40 - 0.45
Manganese %	0.40 - 0.60	0.75 - 1.00	0.75 - 1.00
Phosphorous, max. %	0.04	0.04	0.04
Sulfur, max. %	0.04	0.04	0.04
Silicon, min.%	0.15 - 0.35	0.15 - 0.35	0.15 - 0.35
Chrome, max. %	0.80 - 1.10	0.80 - 1.10	0.80 - 1.10
Molybdenum, max. %	0.15 - 0.25

 

Mechanical Properties

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Mechanicals	Heat Condition	Hardness	Yield	Tensile
A519-4130 / 4140	Quenched and Tempered	28-32 RC	Not Tested	Not Tested
API 5CT L80 in 4519-4100	Quenched and Tempered	18-22 RC	80 - 95 ksi	95 ksi min
API 5CT P110 in 4519-4100	Quenched and Tempered	30-36 RC	110 - 140 ksi	125 ksi min
API 5CT Q125 in 4519-4100	Quenched and Tempered	32-36 RC	125 - 150 ksi	135 ksi min

 

Heat conditions

Condition	Grade	Medium
Annealed	A519-4130 CD	Air
Annealed or Normalized	A519-4130 / A519-4140	Air
Quenched and Tempered	A519-4130	Water
Quenched and Tempered	A519-4140	Polymer or Oil
Quenched and Tempered	A519-4142	Oil

 

Tolerances

Condition	OD	Wall
Annealed or Normalized	ASTM A519	ASTM A519
Quenched and Tempered	+/-1%	+/-12.5%

 

Jiangsu Dehai Group(Parent Company)
	Zhangjiagang Huadian Im &Ex Co., Ltd
Enterprise Purpose	Providing you with the best solutions of high –quality precision seamless steel pipe
Target Market	Southeast Asia; Mid East ;South America; Eastern Asia, etc
	ISO9001:2000; TS16949
Main Produce Standard	GB; ASTM ; DIN;
Address	Zhangjiagang(not far from Shanghai, Suzhou; Wuxi)