Seamless Steel Pipe St52 Bk+S Honed Tubes

• Customization: Available
• After-sales Service: Acceptable for Third-Party Testing
• Warranty: 20 Years
• Model NO.: ST52 20#
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Length: 12m, 6m, 6.4m, 5.8m-12m
• Deliver Time: 5-7 Working Days
• Price Term: CIF CFR Fob EXW
• Brand: Baowu Steel, Ansteel, Masteel, Shougang, etc
• MOQ: 1 Ton
• Is It in Stock?: Stock
• Transport Package: Standard Shipping Packaging
• Specification: 1mm-100mm or as Your Requirements
• Origin: China
• HS Code: 7306900090
• Production Capacity: 8000 Tons/Month

Product Description

Honed tube is a precision seamless tube with high dimensional accuracy and good surface finish after cold drawing or cold rolling, which is suitable for mechanical structures and hydraulic equipment. Using precision seamless steel to manufacture mechanical structures or hydraulic equipment can greatly save processing time, improve material utilization and improve product quality.
 

Steel Grade	C	SI	Mn	P	S	Cr	Ni	Cu
20#	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.250	0.250
45#	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035	0.250	0.250
Q345B	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.030	0.250	0.08
Q345D	≤0.2	≤0.5	1.00-1.60	0.030	0.030	0.250	0.250	0.15
25Mn	0.22-0.29	0.17-0.37	0.70-1.00	0.035	0.035
27SiMn	0.22-0.32	1.10-1.40	1.10-1.40	0.035	0.035	0.300	0.300
E355	0.2	≤0.55	≤1.6	0.025	0.025

 

I.D(mm)	Honed tube ID tolerance(mm)				Wall thinckness                (mm)
	H7	H8	H9	H10
≤30	+0.02110	+0.03310	+0.05210	+0.08410	+7.5%>210mm+10%
30≤50	+0.02510	+0.039/0	+0.06210	+0.100/0
50≤80	+0.02510	+0.04610	+0.07410	+0 12010
80≤120	+0.035/0	+0.05410	+0.087/0	+0.140/0
120≤180	+0.035/0	+0.05410	+0.100/0	+0.160/0
180≤250	+0.046/0	+0.07210	+0.11510	+0.185/0
250≤315	+0.05210	+0.081/0	+0.13010	+0.21010
315≤700	+0.05711	+0.089/0	+0.140/0	+0.21010

 

Honed tube
Standard	DIN2391, EN10305, JIS G3445, ASTM A519, GB/T 8713...
Material	ST45, ST52, E355, E355SR, STKM13C, SAE1026, 20#, Q235B, CK45...
Heat treatment	BK+S
Specification	Outer diameter(mm)	Inner diameter(mm)
	50-300mm	40-250
I.D Tolerance	H8-H9
Length	3-9m (Customers usually choose the 4~5.8m)
Straightness	1/1000
ID roughness	RA 0.4micron(max)
Technology	Honed & SRB(SKIVED AND ROLLER BURNISHED )
Scope	Honed tube for hydraulic cylinder, swivel crane, injection machine and  construction machine application

Packing Details  : Export standard package,bundled or be required.

                              The inner size of container is below:

                              20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)

                              40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)

                              40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)

Delivery Details :  5-7 Working days,or according to the order quantity or upon negotiation

1.Q: Are you trading company or manufacturer ?
A: We are professional manufacturer for steel pipe, and our company also is a very professional a trade company for steel

2.Q: Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.

3.Q: Do you provide samples ? is it free or extra ?
A: The sample could can provide for customer with free,but the courier freight will be covered by customer account.

4.Q: Do you accept the third party inspection?
A: Yes absolutely we accept.

5.Q: How do we trust your company?
A: We specialise in steel business for years, headquarter locates in Shandong province, you are welcome to investigate in any ways.
 
6.Q: How can I get your quotation as soon as possible?
A: The email and fax will be checked within 24 hours,meanwhile,the Wechat and WhatsApp will be online in 24 hours.Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will work out a best price soon.