St52 St52.3 E355 16mn Q345b/D Cold Drawn Seamless Steel Tube/Pipe for Hydraulic Cylinder

• After-sales Service: Support
• Warranty: 1 Year
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Black
• Model NO.: St52 St52.3 E355 16mn Q345b/D
• 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
• Payment Terms: T/T, L/C
• Others: Customized
• Packing: Standard Packing
• Deliver Time: 15 Days
• Transport Package: Standard Fpacking
• Specification: 10-910mm
• Trademark: Boer King
• Origin: Tianjin China
• HS Code: 730419
• Production Capacity: 10000 Tons/Year

Product Description

Congratulations you find us the best supplier ↓

We do care: 
                   --Good Quality
                       --On-time Delivery
                          --Competitive Price
                             --Efficient After Service 
 

Why you choose us?

1. more than 20 years experiences in steel business

2. good quality

3. competitive price

4. meet your needs via reprocessing

5. excellent service

6. short delivery time

7. long mutual beneficial business cooperation

Product description
 

Name : honed tubes, honing pipe, hydraulic cylinder tubes, pneumatic cylinder tubes, honed pipe, honing tube, seamless
honed steel tube, precision tubes, cold drawn honed tubes, skived tubes, skived and roller burnished tubes, skived pipes,
SRB tube, SRB pipe, hydraulic SRB tube, hydraulic cylinder skived tubes
Popular standard and steel grade:

EN10305-1	E355 E235 E410 E470 C45E
DIN2391-1	ST52 ST45 ST52.3
ASTM A519	SAE1020 SAE1045 SAE1026
GB/T	20# 45# 16Mn Q345B Q345D Q345E 42CrMo 27SiMn

Application: hydraulic cylinder, pneumatic cylinder,Jack, cylinder barrel
Manufacture Method: cold drawn, cold rolled, Hot rolled+Deep Hole Boring
Heat Treating Method/Delivery Condition:

BK	BKS	GBK	NBK	Q+T
+C	+SR	+A	+N	Q+T
Cold drawn	Stress relieved	Annealed	Normalized	QUENCHED + TEMPERED

Hydraulic & pneumatic tube size and parameters:

Manufacture method	Cylinder ID (mm)	Length (m)	Straightness (mm/m)	Tolerance on ID	Tolerance on WT	Roughness (μm)
Cold drawn	40-420	≤16M	0.2-0.5	Depends on requirement	±8%	0.8-1.6
Cold rolled	30-100	≥14M	0.2-0.5	Depends on requirement	±5%	0.8-1.2
Cold drawn-honed	40-420	14M	0.2-0.3	H8-H9	±8%	0.2-0.8
Cold drawn-skived & burnished	40-300	9M	0.2-0.3	H8-H9	±8%	≤0.4
Deep hole boring- honed	50-1000	12M	0.2-0.3	H8-H9	±8%	≤0.8
Deep hole boring- skived	50-300	9M	0.2-0.3	H8-H9	±8%	≤0.4

Mechanical property:

Final Supply Condition	Cold finished (Hard)(BK)		Cold drawn and stress-relieved (BK+S or + SR)			Hardness HB
Parameters	T.S obN/mm²	Elongation δ5%	T.S obN/mm²	Y.S OsN/mm²	Elongation δ5%
20# (A106B, ST45, E255)	>=550	>=8	>=520	>=375	>=12	175
45#(CK45)	>=650	>=5	>=600	>=500	>=10	190
Q345B(ST52, E355)	>=640	>=5	>=600	>=520	>=15	190
25Mn	>=640	>=5	>=600	>=510	>=15	195
27SiMn	>=840	>=5	>=720	>=600	>=10	210

Chemical Properties:
 

Material	C%	Mn%	Si%	S%	P%
20#	0.17-0.23	0.35-0.65	0.17-0.37	≤0.035	≤0.035
ST45	≤0.21	≥0.4	≤0.35	≤0.025	≤0.025
E255	≤0.21	0.4-1.1	≤0.35	≤0.025	≤0.025
45#	0.42-0.50	0.50-0.80	0.17-0.37	≤0.035	≤0.035
Q345B	≤0.20	≤1.70	≤0.50	≤0.035	≤0.035
E355	≤0.22	≤1.6	≤0.55	≤0.025	≤0.025
ST52	≤0.22	≤1.6	≤0.55	≤0.04	≤0.04
25Mn	0.22-0.29	0.70-1.0	0.17-0.37	≤0.035	≤0.035
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	≤0.035	≤0.035

Tolerance on ID:
 

ID	Tolerance for ID (μm)
	H7	H8	H9	H10
30	+21 0	+33 0	+52 0	+84 0
>30-50	+25 0	+39 0	+62 0	+100 0
>50-80	+30 0	+46 0	+74 0	+120 0
>80-120	+ 35 0	+ 54 0	+87 0	+140 0
>120-180	+40 0	+63 0	+100 0	+160 0
>180-250	+46 0	+72 0	+115 0	+185 0
>250-315	+52 0	+81 0	+140 0	+210 0
>315-400	+57 0	+89 0	+170 0	+230 0

Part of size list (ID*OD)
 

40*50		100*127		240*273
40*55		110*130		250*266
50*60		120*140		250*280
50*63		120*145		250*300
60*70		125*140		280*323
60*73		125*145		280*325
63*73		140*165		300*320
63*76		140*168		300*356
70*80		150*180		320*340
70*82		160*184		320*356
70*85		160*194		320*370
80*90		170*200		350*370
80*92		180*210		400*420
80*95		200*216
80*100		200*220
90*102		200*232
90*105		200*245
100*114		220*250
100*121		220*273

Product Show 





Packing and shipping




Shipping--- by container (Apply to a few or common quantity) or in bulk ( Apply to huge quantity)
Container sizes: 
20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High)
40ft HC:12032mm(Lengh)x2352mm(Width)x2698mm(High) 
For 20feet container load 25tons-28tons pipes whose max. length is 5.8m. 
For40feet container load 25tons-26tons pipes whose max. length is 12m.

Company information 

     Tianjin Boer King Steel is a  professional  trading company and has been in steel industry for more than 15years, specializing in seamless steel pipe,oil casing/drill pipe, galvanized steel pipe, stainless steel pipe,ERW/SSAW/LSAW/ welded pipe.

      Also we sale hot and cold rolled steel coils,steel plates,galvanized steel coils, all kinds of profiles like H-beam, Angel bar,C profile etc.

      We have established long term cooperations with several famous steel manufactures all over the world, and we can offer you best quality products with competitive price which will give you an edge over your competitors.

      Besides, we offer best service all the time.We will do our best to satisfy you needs for the products. Our products have been sold in many countries and areas of the world including South America, Iran, Kenya, Israel etc, and our export volume reaches 160,000tons per year.
 
      We execute quality gurantee system ISO 9001,2008 strictly and all certicates and the third party inspection like MTC,API,ABS,ISO9001,SGS BV etc. will be provided as client's requirements.



FAQ

Q1:How about the quality?
A:Third party inspections are always welcomed, like TUV, BV, SGS.   All of the goods will be released together with MTC and stamped by TPI. 

Q2: Can you accept customization?
A: Yes.we can do customization for you.

Q3: Do you provide samples? Free or not?
A: Yes, we could offer the sample for free but do not pay the cost of freight.

Q4: How long is the delivery time?
A: Generally about 5-10 days if the goods in stock. Or will be 15-30 days if not in stock.

Q5: How about the trade terms?
A: EXW, FOB, CFR, CIF, LC will be accepted.

Contact: James Wang
Tianjin Boer King Steel IMP&EXP Co.,Ltd
Add: No.602,Shuanggang Development Zone,Tianjin,300350 China.
Web: http://boerkingsteel.en.made-in-china.com