Cold Drawn 4140 20cr SCR420 5120 5140 40cr SCR440 Precision Thick Walled Hexagonal Steel Pipe

• After-sales Service: Support Online
• Warranty: 1year
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Polished
• Model NO.: 4140 20Cr SCr420 5120 5140 40Cr SCr440
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Hexagonal
• Wall Thickness: 1-20 mm
• Tolerant: Plusmn;0.15mm
• Length: 1000-1200mm
• Tech: Cold Drawn / Cold Rolled
• Transport Package: Standard Airworthiness Packaging or as Required
• Specification: customizable
• Trademark: meide
• Origin: Shandong, China
• HS Code: 7304291000
• Production Capacity: 1000 Ton/Month

Product Description

Introduce

Hexagonal steel pipes, also known as irregular steel pipes, also have shapes such as octagonal pipes, diamond pipes, and elliptical pipes. For economic cross-section steel pipes, including those with non circular cross-section, equal wall thickness, variable wall thickness, diameter and wall thickness along the length direction, symmetrical and asymmetric cross-section, etc. Such as square, rectangular, conical, trapezoidal, spiral, etc. Specially shaped steel pipes are more suitable for the unique usage conditions, saving metal and improving labor productivity in component manufacturing. It is widely used in aviation, automobiles, shipbuilding, mining machinery, agricultural machinery, construction, light textile, and boiler manufacturing. The methods for producing shaped pipes include cold drawing, electric welding, extrusion, hot rolling, etc. Among them, the cold drawing method has been widely used.

Product Parameters

ALLOY STRUCTURE STEEL
Grade	AISI  /ASTM	DIN (W.Nr)	JIS	EN/ BS	GB
5120	5120	1.7027 /21Cr4	SCr420		20Cr
530M40 /5140	530M40 /5140	1.7035 /41Cr4	SCr440		40Cr
5145	5145		Scr445		45CR4
4118	4118	1.7243 /18CrMo4	SCM418 / SCM420		20CrMo
4135	4130	1.7218 /25CrMo4	SCM430	708A25/ 708M25	30CrMo
4140	4140	1.7225 /42CrMo4	SCM440	EN19/ 709M40	42CrMo
4340	4340	1.6582/ 34CrNiMo6	SNCM 439/ SNCM8	EN24/ 817M40	40CrNi2Mo
8620	8620	1.6523/ 21NiCrMo2	SNCM220	805M20	20CrNiMo

Product Description

RODUCT NAME	Precision shaped seamless steel pipe
MATERIAL	Q195, Q235, Q345; ASTM A53 GRA,GRB; STKM11,ST37,ST52, 16MN,ETC.
WALL THICKNESS	0.6MM~25MM
LENGTH	AS CUSTOMER'S ACTUAL REQUES
STANDARD	JIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002
BRAND	MEIDE
SECTION SHAPE	Circle/Triangle/Hexagonal/Other Shapes
PACKING	BUNDLE, OR WITH ALL KINDS OF COLORS PVC OR AS YOUR REQUIREMENTS
ENDS	PLAIN END/BEVELED,PROTECTED BY PLASTIC CAPS ON BOTH ENDS, CUT QUARE,GROOVED,THREADED AND COUPLING,ETC.
MOQ	1 TONS, MORE QUANTITY PRICE WILL BE LOWER
SURFACE TREATMENT	1. PVC,BLACK AND COLOR PAINTING 2. TRANSPARENT OIL,ANTI-RUST OIL 3. ACCORDING TO CLIENTS REQUIREMENT
ORIGIN	tianjin   shanghai qingdao guangzhou
DELIVERY TIME	USUALLY WITHIN 10-30 DAYS AFTER RECEIPT OF ADVANCE PAYMENT

Mechanical properties

Material	Diameter of sample d mm	Heat treatment or condition.	Tensile strength σb  Mpa	Point of yield σs  Mpa	Ratio of elongation δ  %	Reduction of section ψ  %	hardness  HBW	Shock absorption energy KV2  J
ASTM 5115 45Cr	d=15	Quenching + tempering	≥735	≥490	≥11	≥45	≤179	≥55
ASTM 5120 20Cr	d=15	Quenching + tempering	≥835	≥540	≥10	≥40	≤179	≥47
ASTM 5130 30Cr	d=25	Quenching + tempering	≥885	≥685	≥11	≥45	≤187	≥47
ASTM 5135 35Cr	d=25	Quenching + tempering	≥930	≥735	≥11	≥45	≤207	≥47
ASTM 5140 40Cr	d=25	Quenching + tempering	≥980	≥785	≥9	≥45	≤207	≥47
ASTM 5145 45Cr	d=25	Quenching + tempering	≥1030	≥835	≥9	≥40	≤217	≥39
ASTM  4119	d=30	Quenching + tempering	≥410	≥265	≥24	≥60	≤179	≥110
ASTM 4130	d=25	Quenching + tempering	≥930	≥785	≥12	≥50	≤229	≥63
ASTM 4317	d=25	Quenching + tempering	≥980	≥835	≥12	≥45	≤229	≥63
ASTM 4140	d=25	Quenching + tempering	≥1080	≥930	≥12	≥45	≤217	≥63
GB38CrMoAI/ JIS SCM645	d=30	Quenching + tempering	≥980	≥835	≥14	≥50	≤229	≥50
ASTM 6150	d=25	Quenching + tempering	≥1280	≥1130	≥10	≥40	≤255	d=25
ASTM 4142	d=25	Quenching + tempering	≥980	≥785	≥10	≥45	≤217	≥63

Delivery conditions

+C(BK)	Cold drawn/hard.After the last cold forming,no heat treatment.
+LC(BKW)	Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing pass.
+SR(BKS)	Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.
+A(GBK)	After the final cold drawing process the tubes are stress relieved annealed in a controlled atmosphere.
+N(NBK)	Normalized. After the last cold drawing process the tubes are annealed in a controlled atmosphere.

storage

1. For the storage of special-shaped steel pipe products, the site or warehouse should be selected in a clean and tidy place with smooth drainage, and away from factories and mines with harmful gases or dust. The ground should be cleaned of weeds and all debris to maintain the cleanliness of the steel.
2. In the warehouse, it is not allowed to stack materials that have a corrosive effect on steel, such as acid, alkali, salt, and sensitive soil. Different types of steel should be classified and stacked to avoid confusion and contact with corrosive objects.
3. Large steel pipes, rails, steel plates, large-diameter steel pipes, forgings, etc. can be stacked outdoors.
4. Small and medium-sized shaped steel, wire rods, steel bars, medium diameter steel pipes, steel wires, and wire ropes can be stored and placed in a well ventilated material shed, and it is important to remember to cover the top and cushion the bottom.
5. Small scale steel, thin steel plates, steel strips, small diameter or irregular steel pipes, various cold-rolled and cold-drawn steels, as well as expensive and easily corrosive metal products, can be stored and placed in storage.
6. The warehouse should be selected based on geographical conditions, and ordinary closed warehouses should be used when deemed appropriate, that is, warehouses with roofs, walls, tight windows, and ventilation devices.
7. The warehouse requires frequent maintenance of a suitable storage background, with attention to ventilation on sunny days and closed to prevent moisture on rainy days.

Packaging	1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips.  2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles
20 feet container contains dimension	Length under 6000mm
40 feet container contains dimension	Length under 12000mm
By bulk vessel	Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo

FAQ

1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.

2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;

3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.

5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese

6. How can we get your price?
A. We need the following information to quote for you:
1).  Product Name
2).  standard
3).  Material grade (chemical composition)
4).  dimension
5).  amount
6).  Special part drawin