S35C S45C Carbon Steel Seamless Tubes

S35C S45C Carbon Steel Seamless Tubes for machining or structural use (hereafter referred to as steel tubes) are manufactured by cold rolled or cold drawn. This material applies to steel products with a uniform cross-section, generally supplied for use after a further process such as cold working, cutting, and heat treatment.

S35C S45C Carbon Steel Seamless Tubes are widely used in mechanical equipment manufacturing, automotive parts manufacturing, and other finishing industries.

• Reference standard for S35C S45C material: JIS G4051
• The reference standard for S35C and S45C steel tube pipe production is JIS G3445, DIN2391, EN10305, GB/T3639.

Classification	Symbols of grades
Carbon steel	S10C, S12C, S15C, S17C, S20C, S22C, S25C, S28C, S30C, S33C, S35C, S38C, S40C, S43C, S45C
JIS G 4051 -2016 Symbols of grades

 
 
 

 
 
 
S35C S45C Carbon Steel Seamless Tubes Production details:

Description: Seamless carbon steel tube

Standard: JIS G3445, DIN2391, EN10305-1, GB/T 3639

Grade: S35C, S45C

Delivery Condition: Cold finished condition or Annealing condition

Size: OD.: 6mm to 114.3mm, Thickness:1mm to 12mm

Length: 12m max

Shape: Round, Square, Rectangle, oval, and other special-shaped.

Production capacity：300ton per month

Central Importer Countries: Thailand, Malaysia, Singapore, Indonesia, Vietnam, etc.

Supplier: CHANGZHOU TREMEN STEEL CO., LTD. (hereafter referred to as CTS TUBES)

Click to download the details of  S35C S45C Carbon Steel Seamless Tubes.

S35C, S45C Chemical composition:

Chemical composition %
Grades	C	Si	Mn	P	S	Ni	Cr	Cu	Ni+Cr
S35C	0.32 to 0.38	0.15 to 0.35	0.6 to0.9	0.03max	0.035max	0.20 max	0.20max	0.30max	0.35max
S45C	0.42 to 0.48	0.15 to 0,35	0.6 to0.9	0.03max	0.035max	0.20 max	0.20max	0.30max	0.35max

Sizing Methods:

HF-Hot Finished,

CW-Cold worked,

RT-Rough Turned,

G- Ground.

Thermal Treatments:

A-Annealed,

N- Normalized,

QT-Quenched and Tempered,

SR-Stress Relieved or Finished Anneal.

S35C, S45C cold finished Condition mechanical property

Cold finished Condition
Steel Grade	Tensile	Yield	Elongation
	Strength Rm (MPa)	Strength ReL (Mpa)	A (%)
S35C	550min	480min	≥10
S45C	600min	520min	≥10

S35C S45C Carbon Steel Seamless Tubes size tolerance:

Generally according to customer requirements or according to JIS standards as follows:

Description	Tolerances on outside diameter and inside diameter
Cold-drawn or cold-rolled tubes	Under 25mm                    ±0.12mm
	25mm or over to and excl. 40mm ±0.15mm
	40mm or over to and excl. 50mm ±0.18mm
	50mm or over to and excl. 60mm ±0.20mm
	60mm or over to and excl. 70mm ±0.23mm
	70mm or over to and excl. 80mm ±0.25mm
	80mm or over to and excl. 90mm ±0.30mm
	90mm or over to and excl.100mm ±0.40mm
	100mm or over      ±0.50%

Thickness tolerance:

Description	Tolerances on wall thickness
Cold-drawn or cold-rolled tubes	Under 3mm
	±0.3mm
	3mm or over
	±10%

S35C S45C Carbon Steel Seamless Tubes Inspection Photos:

Application

S35C S45C Carbon Steel Seamless Tubes are used for machinery, automobiles, bicycles, furniture, appliances, and other machine parts.

We are the S35C S45C Carbon Steel Seamless Tubes manufacturer in China, and our main products include JIS S35C seamless carbon pipe and JIS S45C seamless carbon pipe.

Mechanical Test Requirements:

Hardness Test; Tension Tests; Nondestructive tests; Steel Cleanliness; Hardenability; Flaring Test.

Note:

• Mill test certificates will be issued according to EN10204.3.1B
• All tubes shall be supplied as per applicable JIS
• The tubes Shall be Seamless, and the test Methods and Definitions for Mechanical Testing of Steel Products.
• Orders for material under JIS standard should include the Quantity (Feet, weight, or the number of pieces), Name of material (seamless carbon or alloy steel mechanical tubing), and Form (round, square, rectangular, or unique shapes).
• S35C S45C Orders for material under JIS Standard should provide delivery conditions (A, N, QT, SR).

Package and loading