H8 Tolerance Honing Tube E355 1020 1040 1045 4120 4140 5120 4340 8620 Cold Rolled Precision Seamless Honed Steel Tube

• Type: Seamless
• Technique: Cold Rolled
• 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
• Section Shape: Round
• Model NO.: 1020 1040 1045 4120 4140 5120 4340 8620
• Invoicing: by Actual Weight
• Thickness: 4mm-150mm
• Length: 12m
• Tolerance: ±5%, ±1%
• Oiled or Non-Oiled: Shop Primer and Shot Blasting
• Delivery Time: 7-20 Days
• Product Name: Seamless Alloy Steel Tube/Pipe
• Standard: DIN, GB, DIN 2391, DIN En 10305, GB/T 8713
• Grade: C20, St52, SAE1026, Ck45, 25mn
• Application: Hydraulic Pipe
• Transport Package: Customized or Regular Shipping According to Custom
• Specification: OD 4-2420MM
• Trademark: MEIDE
• Origin: Shandong, China
• HS Code: 7304319000
• Production Capacity: 200000 Ton/Tons Per Month

Product Description

Product Description

Product Name	Hydraulic Honed Tube Pipe
Material	ST52, CK45,1020,1045,4120,5120,5140,4340, 4140, 16Mn, 42CrMo, E355, Q345B, Q345D, Stainless Steel 304/316, Duplex 2205,etc.
Delivery Condition	BK, BK+S, GBK, NBK
Salt Spray Test	Available as per request
Straightness:	≤ 0.5/1000
Roughness:	0.2-0.4 u
Diameter	6mm - 1000mm
Length	1000mm - 12000mm
Tolerance EXT:	DIN2391, EN10305, GB/T 1619
Tolerance INT:	H7, H8, H9
Shape	Round
Technology	perforation /acid pickling / phosphorization /cold drawn /cold rolled /annealing/ anaerobic annealing
Protection:	anti-rust oil on inside and outside surface, plastic caps in both ends.
Used	Hydraulic Cylinders
Packing:	bundle with steel strip and PE sheet package or wooden case.

Chemical Composition (%)

Material	C%	Mn%	Si%	S%	P%
1020,20#	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
1045,45#	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
1026,25Mn	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

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%
1020,20# (A106B, ST45, E255)	>=550	>=8	>=520	>=375	>=12	175
1045,45#(CK45)	>=650	>=5	>=600	>=500	>=10	190
Q345B(ST52, E355)	>=640	>=5	>=600	>=520	>=15	190
1026,25Mn	>=640	>=5	>=600	>=510	>=15	195
27SiMn	>=840	>=5	>=720	>=600	>=10	210

Part of size list (ID*OD)

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

Inner diameter tolerance

Hydraulic Cylinder Honing Tube
Inside Dia   (mm)	ID Tolerance (mm)				WT Tolerance    (mm)
	H7	H8	H9	H10
≤30	+0.021/0	+0.033/0	+0.052/0	+0.084/0	±7.5% >210mm ±10%
30 - ≤50	+0.025/0	+0.039/0	+0.062/0	+0.100/0
50 - ≤80	+0.030/0	+0.046/0	+0.074/0	+0.120/0
80 - ≤120	+0.035/0	+0.054/0	+0.087/0	+0.140/0
120 - ≤180	+0.040/0	+0.063/0	+0.100/0	+0.160/0
180 - ≤250	+0.046/0	+0.072/0	+0.115/0	+0.185/0
250 - ≤315	+0.052/0	+0.081/0	+0.130/0	+0.210/0
315 - ≤700	+0.057/0	+0.089/0	+0.140/0	+0.230/0

Packaging & Shipping

1. Bundle and pack.
2. Warning for inclined end or flat end or according to buyer's requirements.
3. Marking: According to customer requirements.
4. Apply varnish.
5. Plastic covers at both ends.

FAQ

Q1:who are we?
A:We are based in Shandong, China, start from 2022,sell to North America(60.00%),Western Europe(14.00%),South America(6.00%).
There are total about 11-50 people in our office.

Q2. how can we guarantee quality?
A:Always a pre-production sample before mass production;
Always final Inspection before shipment;

Q3.what can you buy from us?Which ports are accepted for delivery?
A:Copper,Aluminum,Mould steel, Seamless carbon steel,Precision steel pipe,The steel plate,Alloy steel,Titanium,Custom machine parts.It can be delivered from Qingdao, Tianjin, Shanghai, Guangzhou and other ports.

Q4.why should you buy from us not from other suppliers?
A:Shandong Meide Import and Export Co., Ltd. has 25 years of production experience. With advanced precision production equipment
and modern large warehouses, has a stockpile of 200,000 tons of goods, has a number of long-term stable cooperative customers.

Q5.what services can we provide?
A:Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,PayPal;
Language Spoken:English,Chinese

Q6.Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.

Q7.How can we get your price ?
A:We need below information to quote for you:
1). Product Name
2). Standard
3). Material Grade (Chemical Composition)
4). Dimension
5). Quantity
6). The Drawing for Special Parts