IATF16949 JIS G3441 Alloy Steel Tube for Mechanical Structure Parts Purpose, Scm440tk

• Customization: Available
• After-sales Service: Free
• Warranty: Free
• Model NO.: OD 15-75mm
• Type: Seamless
• Technique: Cold Rolled
• Material: Alloy Steel
• Surface Treatment: Oiled
• Usage: Hydraulic/Automobile Pipe, Machinery Industry, Special Purpose
• Section Shape: Round
• IATF16949: Yes
• Od: 15-75mm
• Thinckness: 1-20mm
• Deform: Cold Drawn/Rolling
• Transport Package: Bund
• Trademark: bluesky pipe
• Origin: China
• HS Code: 7304319000
• Production Capacity: 50000 Ton/Year

Product Description

Product Description

 

 

Cold rolled seamless pipe is a precision-crafted seamless steel pipe renowned for its outstanding dimensional accuracy and exceptional surface smoothness. These pipes are indispensable for mechanical structures and hydraulic equipment. The technique of cold rolling surpasses hot rolling in terms of dimensional precision, ensuring a superior final product.
Advantages:
Boasting an impressive molding speed, our process ensures high output while maintaining the integrity of the coating. This versatile cold rolling method can create a variety of cross-sectional shapes, perfectly tailored to meet diverse application requirements. Furthermore, cold rolling induces considerable plastic deformation in steel, significantly boosting its yield point and enhancing its overall performance.

 

The widespread promotion and application of high-precision cold-rolled precision steel pipes are transformative, offering a remarkable potential to conserve steel and improve processing efficiency. These pipes save energy while delivering strict inner and outer diameter dimensional accuracy, excellent surface smoothness, optimal roundness, and precise straightness. This translates to substantial reductions in machining time, heightened material utilization, and an elevation in product quality.

Product application

 

Our product is incredibly versatile, finding utility across a broad spectrum of industries. It is predominantly used in automotive parts, motorcycle components, and hydraulic engineering machinery, highlighting its adaptability and reliability in demanding applications.

 

Detailed Photos

 

 

Product Parameters

 

JIS G3441 Alloy Steel Tubes Chemical Component

Designation of grade	C	Si	Mn	P	s	Ni	Cr	Mo	Cu
SMn420TK	0.17 to 0.23	0.15 to 0.35	1.20 to 1.50	0.030 max.	0.030 max.	0.25 max.	0.35 max.	/	0.30 max.
SMn433TK	0.30 to 0.36	0.15 to 0.35	1.20 to 1.50	0.030 max.	0.030 max.	0.25 max.	0.35 max.	/	0.30 max.
SMn438TK	0.35 to 0.41	0.15 to 0.35	1.35 to 1.65	0.030 max.	0.030 max.	0.25 max.	0.35 max.	/	0.30 max.
SMn443TK	0.40 to 0.46	0.15 to 0.35	1.35 to 1.65	0.030 max.	0.030 max.	0.25 max.	0.35 max.	/	0.30 max.
SMnC420TK	0.17 to 0.23	0.15 to 0.35	1.20 to 1.50	0.030 max.	0.030 max.	0.25 max.	0.35 to 0.70	/	0.30 max.
SMnC443TK	0.40 to 0.46	0.15 to 0.35	1.35 to 1.65	0.030 max.	0.030 max.	0.25 max.	0.35 to 0.70	/	0.30 max.
SCM15TK	0.13 to 0.18	0.15 to 0.35	0.60 to 0.90	0.030 max.	0.030 max.	0.25 max.	0.90 to 1.20	/	0.30 max.
SCM20TK	0.18 to 0.23	0.15 to 0.35	0.60 to 0.90	0.030 max.	0.030 max.	0.25 max.	0.90 to 1.20	/	0.30 max.
SCr430TK	0.28 to 0.33	0.15 to 0.35	0.60 to 0.90	0.030 max.	0.030 max.	0.25 max.	0.90 to 1.20	/	0.30 max.
SCr435TK	0.33 to 0.38	0.15 to 0.35	0.60 to 0.90	0.030 max.	0.030 max.	0.25 max.	0.90 to 1.20	/	0.30 max.
SCM40TK	0.38 to 0.43	0.15 to 0.35	0.60 to 0.90	0.030 max.	0.030 max.	0.25 max.	0.90 to 1.20	/	0.30 max.
SCM45TK	0.43 to 0.48	0.15 to 0.35	0.60 to 0.90	0.030 max.	0.030 max.	0.25 max.	0.90 to 1.20	/	0.30 max.
SCM415TK	0.13 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.18	0.35	0.90	max.	max.	max.	1.20	0.25	max.
SCM418TK	0.16 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.21	0.35	0.90	max.	max.	max.	1.20	0.25	max.
SCM420TK	0.18 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.23	0.35	0.90	max.	max.	max.	1.20	0.25	max.
SCM421TK	0.17 to	0.15 to	0.70 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.23	0.35	1.00	max.	max.	max.	1.20	0.25	max.
SCM425TK	0.23 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.28	0.35	0.90	max.	max.	max.	1.20	0.30	max.
SCM430TK	0.28 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.33	0.35	0.90	max.	max.	max.	1.20	0.30	max.
SCM432TK	0.27 to	0.15 to	0.30 to	0.030	0.030	0.25	1.00 to	0.15 to	0.30
	0.37	0.35	0.60	max.	max.	max.	1.50	0.30	max.
SCM435TK	0.33 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.38	0.35	0.90	max.	max.	max.	1.20	0.30	max.
SCM440TK	0.38 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.43	0.35	0.90	max.	max.	max.	1.20	0.30	max.
SCM445TK	0.43 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.15 to	0.30
	0.48	0.35	0.90	max.	max.	max.	1.20	0.35	max.
SCM822TK	0.20 to	0.15 to	0.60 to	0.030	0.030	0.25	0.90 to	0.35 to	0.30
	0.25	0.35	0.90	max.	max.	max.	1.20	0.45	max.
SNC236TK	0.32 to 0.40	0.15 to 0.35	0.50 to 0.80	0.030 max.	0.030 max.	1.00 to 1.50	0.50 to 0.90	/	0.30 max.
SNC415TK	0.12 to 0.18	0.15 to 0.35	0.35 to 0.65	0.030 max.	0.030 max.	2.00 to 2.50	0.20 to 0.50	/	0.30 max.
SNC631TK	0.27 to	0.15 to	0.35 to	0.030 max.	0.030 max.	2.50 to	0.60 to	/	0.30 max.
	0.35	0.35	0.65			3	1
SNC815TK	0.12 to	0.15 to	0.35 to	0.030 max.	0.030 max.	3.00 to	0.60 to	/	0.30 max.
	0.18	0.35	0.65			3.5	1
SNC836TK	0.32 to	0.15 to	0.35 to	0.030 max.	0.030 max.	3.00 to	0.60 to	/	0.30 max.
	0.4	0.35	0.65			3.5	1
SNCM220TK	0.17 to	0.15 to	0.60 to	0.030 max.	0.030 max.	0.40 to	0.40 to	0.15 to	0.30 max.
	0.23	0.35	0.9			0.7	0.6	0.25
SNCM240TK	0.38 to	0.15 to	0.70 to	0.030 max.	0.030 max.	0.40 to	0.40 to	0.15 to	0.30 max.
	0.43	0.35	1			0.7	0.6	0.3
SNCM415TK	0.12 to	0.15 to	0.40 to	0.030 max.	0.030 max.	1.60 to	0.40 to	0.15 to	0.30 max.
	0.18	0.35	0.7			2	0.6	0.3
SNCM420TK	0.17 to	0.15 to	0.40 to	0.030 max.	0.030 max.	1.60 to	0.40 to	0.15 to	0.30 max.
	0.23	0.35	0.7			2	0.6	0.3
SNCM431TK	0.27 to	0.15 to	0.60 to	0.030 max.	0.030 max.	1.60 to	0.60 to	0.15 to	0.30 max.
	0.35	0.35	0.9			2	1	0.3
SNCM439TK	0.36 to	0.15 to	0.60 to	0.030 max.	0.030 max.	1.60 to	0.60 to	0.15 to	0.30 max.
	0.43	0.35	0.9			2	1	0.3
SNCM447TK	0.44 to	0.15 to	0.60 to	0.030 max.	0.030 max.	1.60 to	0.60 to	0.15 to	0.30 max.
	0.5	0.35	0.9			2	1	0.3
SNCM616TK	0.13 to	0.15 to	0.80 to	0.030 max.	0.030 max.	2.80 to	1.40 to	0.40 to	0.30 max.
	0.2	0.35	1.2			3.2	1.8	0.6
SNCM625TK	0.20 to	0.15 to	0.35 to	0.030 max.	0.030 max.	3.00 to	1.00 to	0.15 to	0.30 max.
	0.3	0.35	0.6			3.5	1.5	0.3
SNCM630TK	0.25 to	0.15 to	0.35 to	0.030 max.	0.030 max.	2.50 to	2.50 to	0.50 to	0.30 max.
	0.35	0.35	0.6			3.5	3.5	0.70 b)
SNCM815TK	0.12 to	0.15 to	0.30 to	0.030 max.	0.030 max.	4.00 to	0.70 to	0.15 to	0.30 max.
	0.18	0.35	0.6			4.5	1	0.3
SACM645TK	0.40 to	0.15 to	0.60 max.	0.030 inax.	0.030 max.	0.25 max.	1.30 to	0.15 to	0.30 max.
	0.5	0.5					1.7	0.3

 
 

Grade	Rel(Mpa)	Rm(Mpa)	A(%)
SCM415	≥295	≥440	≥22
SCM418	≥735	≥880	≥15
SCM420	≥685	≥885	≥12
SCM430	≥785	≥930	≥12
SCM435	≥835	≥985	≥12
SCM440	≥930	≥1080	≥12

Size tolerance
OD	Standard tolerance			Special tolerance
Outer Diameter	GB/T3639	DIN2391	EN10305	O D	thickness
4mm-20mm	±0.10 mm	±0.08 mm	±0.08 mm	±0.05mm	±0.05mm
20mm-30mm	±0.10 mm	±0.08 mm	±0.08 mm	±0.08 mm	±0.08 mm
31mm-40mm	±0.15 mm	±0.15 mm	±0.15 mm	±0.10 mm	±0.08 mm
41mm-60mm	±0.20 mm	±0.20 mm	±0.20 mm	±0.15 mm	±0.15 mm
61mm-80mm	±0.30 mm	±0.30 mm	±0.30 mm	±0.20 mm	±0.20 mm
81mm-120mm	±0.45 mm	±0.40 mm	±0.40 mm	±0.30 mm	±0.30 mm

Equivalent Material referance:
GB	TOCT	ASTM	BS	JIS	NF	DIN
10F		1010	040A10		XC10
10	10	10,101,012	045M10	S10C	XC10	C10,CK10
20	20	1020	050A20	S20C	XC18	C22,CK22
45	45	1045	080M46	S45C	XC45	C45,CK45
30CrMo	30XM	4130	1717COS110	SCM420	30CD4
42CrMo		4140	708A42		42CD4	42CrMo4
			708M40
35CrMo	35XM	4135	708A37	SCM3	35CD4	34CrMo4

Material	10#-45#, 16Mn, A53-A369, Cr-Mo alloy, Q195-Q345, ST35-ST52, 10#, 20#, 45#,  16Mn, A213, A315, 30CrMo, Q195, Q215, Q235, Q345, ST35, St37, St45, St52
Surface	Black/ Bright
Standard	DIN, GB, JIS, DIN 17175, DIN 2391, GB 5310-1995, GB/T 13793-1992, GB/T 3094- 2000, GB/T 8163-1999, JIS G3101
Size	OD 15mm-70mm
	Thickness 1-12mm
Processing	Cold rolled/ Cold drawn
	1. BK (+C)  No heat treatment after last cold forming process.
	2. BKW (+LC) After last heat treatment there is a light finishing pass ( cold drawing)
	3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
	4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled  atmosphere.
	5. NBK (+N) After the final cold forming process the tubes are annealed above the  upper transformation point in a controlled atmosphere.
Packing	Woven bag/ Wooden or crate carton/ Bundle Packing/ Plain end or vanished as per  customer's request.
Delivery time	Normally 20-30 working days

Company Profile

 

FAQ

 

Q: Are you trading company or manufacturer?
A: We are professional manufacturer for steel pipes,and our company also is a very professional and technical foreign trade company for steel products. We have more export experience with competitive price and best after-sales service. Apart from this,we can provide a wide range of steel products to meet the requirement of customer.

Q:Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time no matter if the price change lot or not. Honesty is our company's tenet.

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

Q: How can I get your quotation as soon as possible?
A: The email and fax will be checked within 24 hours,meanwhile,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.

Q: Do you have any certifications?
A: Yes,that's what we guarantee to our clients. we have IS09000,IATF16949 certinicate,ISO 14001 certificates etc.Our products are of high quality and we have professional engineers and development team.

Q: What is your terms of payment?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipmenit or paid against copy of B/L within 5 working days. 100% Irrevocable L/C at sight is favorable payment term as well.

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