Chinese Manufacturer Supplier Factory Hot Rolled Cold Drawn Cold Rolled Honed Thermal Expansion Carbon Alloy Stainless Steel Seamless Steel Tube Steel Pipe

• After-sales Service: Reasonable Returns or Exchanges Are Supported
• Warranty: 12 Months Warranty
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Oiled
• Model NO.: Seamless Steel Pipes
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Automobile/Aerospace/Marine/Power Station
• Section Shape: Round/Square/Rectangular/Hexagon/Special Shaped
• Standard: ASTM/En/DIN/JIS/GOST/GB
• Diameter: 4mm~530mm
• Thickness: 0.5mm~130mm
• Length: 5.8m/6m/11.8m/12m or as Requested
• Pipe Ends: Plain/Bevelled/Threaded/Chamfer
• Machining: Cutting/Turning/Bending/Punching Is Supported
• Trade Terms: EXW/Fob/CIF/DAP
• Transportation: by Vessel/Air/Rail
• Third Party: Available
• Service: Customized/OEM/ODM
• Origin Certificate: Co/Form E/Form a/Rcep and etc.
• Certificate: ISO9001
• Market: Latin America/Asia/Europe/Africa/Austalia
• Transport Package: External Packing by PVC Bags and Knit Bags
• Specification: OD: 6mm-325mm; ID: 2-250mm
• Trademark: HYT
• Origin: China
• HS Code: 7304319000
• Production Capacity: 100000 Tons Per Year

Product Description

Standard & Material	Carbon Steel	ASTM A519 Standard	MT1010, MT1020, 1008, 1010, 1018, 1020, 1025, 1030, 1045, 1518
		JIS G3445 Standard	STKM11A  STKM12A  STKM12B  STKM12C   STKM13A  STKM13B   STKM13C   STKM14A  STKM14B  STKM14C  STKM15A  STKM15C   STKM16A  STKM16C   STKM17A   STKM17C  STKM18A  STKM18B  STKM18C   STKM19A  STKM19C  STKM20A
		JIS G3473 Standard	STC370, STC440, STC510A, STC510, STC540, STC590A, STC590B
		DIN 2391 Standard	St 35, St45, St52
		EN 10297-1 Standard	E235, E275, E315, E355, E470
		EN 10305-1 Standard	E215, E235, E355
		EN 10305-4 Standard	E215, E235, E355
		BS 6323-3 Standard	HFS 3, HFS 4, HFS 5, HFS 8
		NF A49-311	TU 37-b, TU 52-b, TU 56-b, TU XC35
	Alloy Steel	ASTM A519 Standard	1345, 3140, 4130, 4135, 4140, 4150, 4320, 4340, 5120, 5130
		JIS G3429 Standard	STH11, 12 STH21, 122 STH31
		JIS G3441 Standard	SCR420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM440TK
	Stainless Steel	ASTM A511 Standard	MT304, MT304L, MT310S, MT316, MT316L, MT317, MT321, MT347,   MT403, MT410, MT431
		ISO Standard	NACE MR-0175
Size		Size Range	Tolerance
	OD	6-325mm	-0.035 -- +0.045mm
	ID	2-250mm	±0.035mm
	WT	1-32mm	depends on sizes
	Length	random or fixed length	+0-3.5mm
	Straightness	0.15:1000, 0.4:1000, 0.5:1000 1:1000 or customized
	Surface Roughness	Ra 0.02-0.4μm

CHEMICAL COMPOSITION

Steel Grade	C(%)	Si(%)	Mn(%)	P(%)	S(%)	Nb/V(%)
STKM11A	≤0.12	≤0.35	≤0.60	≤0.040	≤0.040	-
STKM12A	≤0.20	≤0.35	≤0.60	≤0.040	≤0.040	-
STKM12B	≤0.20	≤0.35	≤0.60	≤0.040	≤0.040	-
STKM12C	≤0.20	≤0.35	≤0.60	≤0.040	≤0.040	-
STKM13A	≤0.25	≤0.35	0.30~0.90	≤0.040	≤0.040	-
STKM13B	≤0.25	≤0.35	0.30~0.90	≤0.040	≤0.040	-
STKM13C	≤0.25	≤0.35	0.30~0.90	≤0.040	≤0.040	-
STKM14A	≤0.30	≤0.35	0.30~1.00	≤0.040	≤0.040	-
STKM14B	≤0.30	≤0.35	0.30~1.00	≤0.040	≤0.040	-
STKM14C	≤0.30	≤0.35	0.30~1.00	≤0.040	≤0.040	-
STKM15A	0.25~0.35	≤0.35	0.30~1.00	≤0.040	≤0.040	-
STKM15C	0.25~0.35	≤0.35	0.30~1.00	≤0.040	≤0.040	-

MECHANICAL PROPERTIES

Steel Grade	Tensile Strength(N/mm²)	Yield Strength(N/mm²)
STKM11A	≥290	-
STKM12A	≥340	≥175
STKM12B	≥390	≥275
STKM12C	≥470	≥355
STKM13A	≥370	≥215
STKM13B	≥440	≥305
STKM13C	≥510	≥380
STKM14A	≥410	≥245
STKM14B	≥500	≥355
STKM14C	≥550	≥410
STKM15A	≥470	≥275
STKM15C	≥580	≥430

DELIVERY CONDITION

+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.

 

Package	1) Bundle with strip 2) Water-proof sheeting 3) Woven bags 4) PVC package 5) Clients' Requirements
Shipping	1) 20ft container: 26tons (Can load 5.8M Max) 2) 40ft container: 26tons (Can load 12M Max) 3) More than 100tons:can pack by bulk vessel 4) As your requirement
Port of Shipment	Shanghai/Tianjin Port, China
Date of Delivery	According to the quantity and specification of each order

1. Q: What's the surface roughness of seamless mechanical tubing you could do ?
    A:Surface Roughness: a=0.02~0.4micron or depends on the customer's requirement.
 
2. Q: How's the straightness of cold drawn mechanical tubes?
    A: Straightness:0.3~0.8mm/1000mm
 
3. Q: Shall we get the discount if repeating our orders?
    A: Of course, biggest discount will be shared with the regular customers.


Jiangsu HYT International Trading Co., Ltd was established in 2010, which is a wholly-owned subsidiary of Wuxi Lusheng Special Steel Co., Ltd.. Jiangsu HYT International Trading Co. Is responsible for the overseas marketing business of various metal products produced by our group. We specialize in alloy steel, stainless steel, carbon steel, copper, aluminum, high nickel chromium alloy and other materials of pipes, plates, bars, profiles, piping fittings and welding materials, we dediceted in providing one-stop service for petroleum, chemical, electric power and automobile manufacturing industries.
Our group is a modern industrial enterprise integrating production, development, sales and service... We have a complete and effective quality management and quality assurance system, we had passed the ISO 9001: 2008 Quality Management System Certification, the National Special Equipment Manufacturing License (Pressure Pipeline Level A2), ISO 14001: 2004 Environmental Management System Certification, OHSAS18001: 2001 Occupational Health and Safety Management System Certification and Classification Society Certification.