Wholesale Direct Sales Uns S30100/1.4310 Austenitic Stainless Steel Bar for Medical Surgical Instruments Medical Device Materials 301 Steel Rod

• Customization: Available
• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Model NO.: 301 Bar/Rod
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Color Coated
• Alloy: Non-alloy
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel
• Key Words: 301 Bar/Rod
• Thickness: 2mm - 100mm
• Outside Diameter: 4.0 - 1219mm
• Length: as Your Requirments
• Diameter Tolerance: H9, H11, H13, K9, K11, K13 etc
• Sample: Free-Sample
• Surface: Lack, Peeled, Polishing, Bright, Sand Blast, Hl
• MOQ: 100kgs
• Stock: in Stock
• Transport Package: Wooden Package
• Specification: 301
• Trademark: LORK
• Origin: China
• HS Code: 7219350000
• Production Capacity: 50000kg/Month

Product Description

Product Description

Introduction

Stainless Steel Type 301 is an austenitic chromium-nickel stainless steel that is available in the annealed and cold worked conditions. In the annealed condition, Type 301 offers the highest level of stretch formability of any stainless steel and in the heavily cold worked condition offers the highest strength level of any 300 series stainless steel. Type 301 is non-magnetic in the annealed condition but becomes magnetic as a result of cold working.

Stainless steel grade 301 is usually supplied in the form of strips and wires, with a tensile strength of up to 1800 Mpa, to produce tempers ranging from 1/16 Hard to Full Hard. By subjecting grade 301 to controlled analysis it is capable of retaining sufficient ductility even in ½ hard conditions. This form of grade 301 may be used in aircraft, rail car components and architectural structures. Tempers of this grade, ranging from ¾ to full hard, may be used in applications requiring high wear resistance and spring features with simple form designs.

Composition

Composition ranges of stainless steel grade 301 are tabulated below.

Composition ranges for 301 grade stainless steel

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
301 ASTM A666	min. max.	- 0.15	- 2.0	- 1.0	- 0.045	- 0.030	16.0 18.0	-	6.0 8.0	- 0.10

 

Grade Specification

Grade	UNS	DIN	EN	AMS	ASTM		JIS
301	S30100	-	1.4310	-			SUS 301

Mechanical Properties

The mechanical properties of grade 301 stainless steels are listed in the table below. The bend test is obtained around a diameter of the bend factor multiplied by the steel thickness.

Mechanical properties of 301 grade stainless steel

Grade 301 Temper ASTM A666	Tensile Strength (MPa) min.	Yield Strength 0.2% Proof (MPa) min.	Elongation (% in 50mm) (thick.>0.76mm) min.	Bend Test (thickness > 1.27mm)
				Bend Angle (°)	Factor
Annealed	758	276	60	-	-
1/16 Hard	620	310	40	180	1
1/8 Hard	690	380	40	180	1
1/4 Hard	862	514	25	90	2
1/2 Hard	1034	758	18	90	2
3/4 Hard	1205	930	12	90	3
Full Hard	1276	965	9	90	5

Physical Properties

Physical properties of grade 301 stainless steels are listed in the table below.

Physical properties of 301 grade stainless steel

Grade	Density (kg/m^3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (μm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100^°C (J/kg.K)	Electrical Resistivity (nΩ.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
301	7880	193	16.9	17.2	18.2	16.2	21.4	500	695

Characteristic

Heat Resistance
Grade 301 exhibits good oxidation resistance for intermittent services up to 840°C and for continuous service up to 900°C.

Corrosion Resistance
The resistance to corrosion offered by stainless steel grade 301 is similar to that offered by 304. This grade exhibits good resistance to corrosion in mildly corrosive environments at ambient temperatures.


Technology

Heat Treatment
Stainless steel grade 301 is subjected to solution treatment annealing in temperatures ranging from 1010oC to 1120°C followed by rapid cooling. For intermediate annealing a low temperature range is chosen. Thermal hardening does not suit this grade of stainless steel.

Cold Working
Stainless steel grade 301 and low carbon variants of this grade are predominantly used as high strength stainless steel. The work hardening rates of these grades are very high, in the range of a 14MPa increase per 1% reduction in area of cold work. As a result of this characteristic high strength can be achieved from cold rolling and roll forming operations.

Through such forming methods strain hardened austenite may be partially transformed to martensite. In spite of achieving such high strengths, the residual ductility in the alloy is capable of causing severe cold deformation. The alloy is non-magnetic in the annealed condition, but shows strong magnetism when cold worked.

Welding
Stainless steel grade 301 is suitable for all forms of standard welding methods. The use of grade 308L as filler metal is recommended. Welded parts in grade 301 must be subjected to annealing in order to attain maximum corrosion resistance. For grades 301L and 301LN annealing is not necessary after welding. The purpose of welding followed by annealing is to remove the high strength brought about by cold rolling.

The process of spot welding is used to assemble the cold rolled 301 components; this rapid welding technique does not hamper the overall strength of the component.

 

Possible Alternative Grades

A list of the possible alternatives to grade 301 stainless steels is given in Table 5.

Possible alternative grades to 301 grade stainless steel

Grade	Reason for choosing the alternate grade
304	The lower work hardening rate of 304 is acceptable, giving better ductility required for forming.
316	A higher corrosion resistance is required, and the lower work hardening rate of 316 can be compensated for.

Applications

Surgical instruments such as surgical forceps, wrenches, and wire guides require high corrosion resistance and reliability, and 301 stainless steel can meet these requirements. 

Orthopedic and dental surgical instruments, such as fixing plates and screws, require good biocompatibility and durability. 

Connecting parts of medical devices, such as bolts and nuts, require high strength and corrosion resistance. 

In addition, 301 stainless steel also has good processing performance, is easy to process and form, can be cold-processed and hot-processed, and has good plasticity and weldability. 

These characteristics give 301 stainless steel a significant advantage in medical device manufacturing.

 

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Process

 

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