Specifications

Grade :45# , 20#, Q345B, 25Mn, 16Mn 42CrMo
MOQ: 5Ton
fastest ship date: within 10days for some styles
QC: ISO9001 standard

Burnished precision cold rolled stk400 steel pipe  

 

 

What we want to say:

Dear Sir/Madam, Welcome~

We are Yantai Xinpeng Steel Pipe Co.,Ltd

♦ Professional tube manufacturer which have over 20years experience 

♦High reputation in tube world benefit by competitive price, quality and service.

♦ Supply all kinds of steel pipes such as:

√ hot rolled/cold drawn seamless steel pipes 

√ honed and skived pipes

√ cold drawn welded tubes(DOM tubes)

♦ Our Website:  http://ytxinpeng.en.china.cn

 

 

 About our productions:

Production Details:
Grade:	20#(CK20,AISI1020),45#(CK45,AISI1045),Q345,ST52(16Mn,Q345D), 42CrMo,25Mn (STKM13C-T),27SiMn.etc cold drawn seamless pipes
ID:	50-250mm
ID tolerance:	H8,H9
Surface roughness:	Ra 0.02—0.4μm
Final supply condition:	cold drawn and stress-relieved(BK+S)
Machining allowance:	0.5-1.5mm
Wall thickness:	10%×ID

 

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Mechanics performance:
Material	Tensile strength	Yield strength	Elongation	Hardness
CK20/20#/AISI1020	>520 N/ mm2	>375 N/mm2	>15%	>85HB
CK45/45#/AISI1045	>600 N/ mm2	>520 N/ mm2	>15%	>85HB
ST52/16Mn/Q345D	>600 N/ mm2	>520 N/ mm2	>15%	>85HB
25Mn/STKM 13C-T	>600 N/ mm2	>530 N/ mm2	>15%	>85HB

 

 

Variety :
Processing	Cylinder Diameter	Straightness	Size Accuracy	W.T/mm	Inner Bore Roughess
Cold drawn/cold rolled	ID30-250	0.3	H9-H11	±10%	0.4~1.6um
Honed tube	ID50-250	0.3	H7-H9	±10%	<0.4um

 

 

Tolerance on ID:
No.	Inside diameter (mm)	ID machining allowance (mm)
1	300-80	0.5-0.8
2	81-125	0.7-1.1
3	125-200	0.9-1.2
4	200-250	1-1.5
Other dimension can be customize

 

 

 

 

 

 

 

About our work flow:

 

  

 

 

 

About our package:

 

About our test equipment:

 

About our company:

 

 

 

 

About our certificate: 

 

 

About our business partner:

About our deliver conditions:

1. Standard packing with plastic caps and strapped bundles.

2. Commercial length 2000~10500mm,custom lengths upon request

3. Surface protection

 

About our service:

1. Cargo track service during transporting and feedback service after cargo is loaded on board

2. Flexible terms of payment by T/T and L/C
3. Big discount for repeat customers
4. Smooth delivering procedure

 

 

♥ If you are interested in us, please feel free to contact us:

<Thank you so much for all of your concern and precious time! ♥>