9cr18mo/102cr17mo/440c Hot Rolled Round Bar Martensitic Stainless Steel Bar Steel Round Bar High Hardness

Product Description

Product Description

Introduction

It is a high-carbon and high-chromium martensitic stainless steel with properties and applications similar to those of 95Cr18 (9Cr18) steel. Due to the addition of molybdenum and vanadium in the steel, its hot strength and temper resistance are both superior to those of 95Cr18 (9Cr18) steel. After appropriate heat treatment, 9Cr18Mo can achieve a high hardness of HRC 58-60 while maintaining good rust resistance. It is suitable for occasions requiring high strength, wear resistance and corrosion resistance, but has poor weldability and is generally not used for welded structural components.

Applications

It is mainly used to manufacture parts that bear friction and work in corrosive media, such as measuring tools and cutting tools. It can also be used for corrosion-resistant and wear-resistant equipment in chemical and marine environments, such as compressor components: piston rods and guide rings; seawater desalination equipment: wear-resistant rings and valve seats of high-pressure pumps, etc.

Equivalent Grades Standards

Steel Grade	Specification	Specification Name
9Cr18Mo / 102Cr17Mo / S45990	GB/T 1220	Stainless steel bars
	GB/T 4356	Stainless steel wire rods
UNS S44004 / 440C	ASTM A276/A276M	Standard specification for stainless steel bars and shapes
	ASTM A493	Standard Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
1.4125 / X105CrMo17	EN 10088-3	Stainless Steels Part 3-Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
SUS440C	JIS G 4303	Stainless Steel bars
	JIS G 4308	Hot rolled stainless steel sheet and strip
	JIS G 4318	Cold finished stainless steel bars
Products produced as per other specifications or technical agreements (if need) are available.

Chemical composition

Elements	C	Si	Mn	P	S	Ni	Cr	Mo
Content%	0.95~1.10	≤0.80	≤0.80	≤0.040	≤0.030	≤0.60	16.00~18.00	0.40~0.70
Products produced as per other specifications or technical agreements (if need) are available.

Typical delivery condition & mechanical properties

Delivery Condition	Mechanical Properties and Hardness of Heat-Treated Specimens
	Rp0.2/(N/mm2)	Rm/(N/mm2)	A/%	Zb/%	Aku2d/J	HBW	HRC
Annealed Condition(800℃-900℃, cool slowly)	/	/	/	/	/	≤269	/
Q+T(1000℃-1050℃, oil; 200℃-300℃, air)	/	/	/	/	/	/	≥55
Products produced as per other specifications or technical agreements (if need) are available.

FAQ

1. Are you a factory or trader?

-Factory, Shifang Xin'gong is a professional manufacturer with own smelting, forging, heat treatment and precision machining equipment, has own test lab.

-SMTCO is the only direct export department of Shifang Xin'gong.

2. Do you have stock?

-Yes, we have 4 stock warehouses located in Sichuan, Jiangsu and Guangdong province, with more than 3000 tons stock, including steel bars and plates/sheets of 9Cr18, 9Cr18Mo, 9Cr18MoV, 1.4313, 17-4PH, 15-5PH etc.

3. Customized production capability?

-Yes, we can conduct research & develop customized production according to special technical requirements and small batch.

4. How to guarantee the quality?

-4.1 Achieved certification of ISO 9001:2015 and GJB 9001C-2017. MTC according to EN 10204-3.1.

-4.2 Fully traceable in the entire production & inspection process. Inspection covers chemical composition analysis, mechanical property testing, macro and micro structure inspection, 100% ultrasonic testing (NDT), dimension and surface inspections, special requiremnets as required.

-4.3 The third party inspection before delivery is accepted.

5. MOQ and sample?

-1 kg for products in stock, max 3 tons for customized products.

-Sample or small trial batch are accepted.

6. Price level?

-Middle or little higher than market average, because of the complete quality control during the entire production process with more than 99.9% qualify rate.

7. Delivery time?

-7 days for stock – prepare export license and documents.

-65 days for new production – start from smelting.

8. Which port nearest?

-Shanghai port for transportation by sea, Chengdu or Suzhou railway station for transportation by train (China-Europe Railway Express). 

9. What is your positioning? 

-Better price and lower MOQ than large manufacturers, more professionalism and better quality control than small and medium-sized ones.

-Aim to be the most cost-effective one-stop solution provider for special stainless steel.

10. Core competitiveness?

-Sufficient stock & Small batch available.

-System-driven, fully traceable.

-Uphold standards, control processes.

-Demand-driven production, precision customization.

-Fully monitored by own lab, third-party inspection accepted.