High Quality Precision Steel Tube for Drive Shaft Monobloc

• Warranty: 3 Years
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Model NO.: wst
• Section Shape: Round
• Carbon Steel: GB/T 8162 & 8163 & 3639
• Outer Diameter: 10-120mm (0.4 Inch - 4.7 Inch)
• Wall Thickness: 1-20mm (0.04 Inch - 0.78 Inch)
• Length: Less Than 11.8m
• Tech: Cold Drawn / Cold Rolled
• Tolerance: ±0.15mm
• Transport Package: Sea Transportation
• Specification: Varnish, Plastic Caps, in Bundled, or Customized
• Trademark: Tenjan
• Origin: China
• HS Code: 7304319000
• Production Capacity: 50000 Ton/Year

Product Description

Precision Welded Steel Tube 

--High precision
--Smooth and Clean OD and ID surfaces without welding joint
--Excellent machining characteristics
--Advanced manufacturing and quality processes to meet standards
--Cost savings with controlled quality
 

1.Product Description /Specifications

Production Range	Outer Diameter:10-120mm (0.4 inch - 4.7 inch)
	Wall Thickness:1-20mm (0.04 inch - 0.78 inch)
Material / Grade	Q195, Q235, Q345, E195, E235, E355, ST37-2, ST52-3(DIN 2393-2/EN 10305-2), Others can be customized
Tolerance	Can be customized according to customer's requirements
Technique	Cold Drawn / Cold Rolled
Shape	Triangle, Hexagon, Square, Rectangle, Octagon, Others can be customized
Further Processing for Steel Tubes	Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking

 

International Steel Grade Table
	China	ASTM A519	DIN	JIS 3445	JIS G4051
Carbon Steel	10#	1010	DIN C10/CK10	STKM11A	S10C
	20#	1020	DIN C22/CK22	STKM12A/STKM12B/      STKM12C	S20C
	25#	1026		STKM13A/STKM13B/ STKM13C	S25C
	35#	1035	DIN C35/CK35		S35C
	45#	1045	DIN C45/CK45		S45C
	55#				S55C
	CF53	1050	CF53
	Q235B
	Q235C
	A105
Alloy Steel	16Mn(Q345B)		St52
	20Cr	5120	20Cr4 (EN 10084-1998)	JIS SCr420( JIS G4053)
	40Cr	5140	41Cr4(1.7035)	JIS SCr440( JIS G4053)
	15CrMo		15CrMo4	SCM415 (JIS 4053)
	20CrMo		25CrMo4(1.7218)	SCM420 (JIS 4053)
	28CrMo
	30CrMo	4130
	35CrMo	4135	35CrMo4(1.7220)	SCM432/SCRRM3
	42CrMo	4140	42CrMo4(1.7225)	SCM4
	20CrMnTi
	40MnMoV
	20Mn2
	ZF6		16MnCr5(1.7131)
	16MnCr5
	20MnCr5
	38Mn2V
	36Mn2V
	09CrCuSb(ND)
Steel Tube Standard	Seamless Steel Tubes for Structural Purposes    GB/T 8162-2018	ASTM A519	DIN17121/EN 10297-1	JIS3441/JIS3444/JIS3445
	Seamless Steel Pipes for Liquid Service   GB/T 8163-2018	ASTM A106
	Seamless Cold-drawn or Cold-rolled Steel Tubes for Precision Applications  GB/T 3639-2009		DIN1629/DIN2391           / EN 10305-1
	Cold Drawn Shaped Steel Tubes GB/T 3094-2012	ASTM A500 / ASME SA500
	Seamless Steel Tubes for Automobile Stabilizer Bar GB/T 33821-2017
Rebar Coupler Standard	Couplers for Rebar Mechanical Splicing JG/T 163-2013

 

2.Production process of seamless steel pipe

Row Material storage/inspection and cutting by saw machine

 

Hot Perforaction

 

Squeeze head and raw tube inspection

 

Cycling pickling

 

Cycling cold drawing/roling

 

Cycling annealing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Straightening

 

Eddy current inspection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Products inspection and test

 

 

Certificate

Changzhou Tenjan Steel Tube Co., Ltd. was founded in 2004. The annual production capacity can reach 60,000 tons under years of development. We are a leading technical manufacturer in the seamless steel tube and rebar coupler industry. Tenjan's chairman, Wensheng Gu, already has 25-year experience in steel tube industry and is the major constitutor of national standard Couplers for Rebar Mechanical Splicing JG/T 163-2013. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ABOUT TENJAN

Tenjan is specialized in custom production of high quality seamless steel tubes under international standards ASTM A519, ASTM A106, ASTM A500, ASME SA500, DIN2391, DIN1629, EN10305-1, DIN17121, EN10297-1, JIS3441, JIS3444 and JIS3445. We provide small batch customization service, especially for small and medium-size enterprises. Raw material, internal and external dimensional tolerances and consistency, internal and external surface roughness, straightness, mechanical properties, eccentricity, special shape, alloy steel, small-diameter thick-walled seamless steel tubes all can be customized. The production range for outer diameter is from 10 to 120mm and for wall thickness is from 1 to 20mm

 

Why Choose Tenjan?
 

(1) Large Scale Production,Strong R&D Capability

The annual production capacity can reach 60,000 tons under years of development. Every-year R&D investment and a team of technicians enable Tenjan with strong R&D capability. Tenjan has full system of production with advanced equipment, such as perforation, pickling, cold rolling, cold drawing, straightening, flaw detection, tensile test and machining.

 

(2) Quality Control 

Every batch of products can be traced and guaranteed by the raw material certificate and steel tube quality certificate. Complete quality control system, following ISO9001, to ensure a full inspection process such as pull force test, chemical composition test and eddy current detection.

 

(3) Certification

The chairman of Tenjan, Mr. Wensheng Gu, is one of the major constitutors of national standard Couplers for Rebar Mechanical Splicing JG/T 163-2013. And Tenjan has won the Quality System Certificates of ISO9001 and IATF16949.

 

(4) Major Customer Case

We have long-term relationship with customers such as BMW, MCC, CNNP, CRRC, Midea, Sinohydro, China Pingmei, China Academy of Building Research and so on.

 

(5) Export Countries

Our products were exported to Europe, America, Japan, South Korea, The Middle East, Southeast Asia and in total six continents over 20 countries, and which has been consistently trusted by customers.

 

(6) Customer Service

Tenjan provides considerate service to every customer with fast feedback, quality track and technical support.