Stainless Steel grade: EN 1.4313/AISI F6NM430/UNS J91540/DIN X3CrNiMo13-4

“Super martensitic stainless steel” is made by improving the smelting process of martensitic stainless steel, reducing carbon content, and adding nickel-molybdenum alloy elements. Its performance is better than conventional martensitic stainless steel. It not only has better corrosion resistance and weldability, Moreover, it has the characteristics of high strength and good low temperature toughness, and it has great application potential in the fields of hydropower, mining equipment, chemical equipment, food industry, transportation and high temperature pulp production equipment.

UNS J91540 (S-135/00Cr13Ni5Mo), also known as 04Cr13Ni5Mo, is an ultra-low carbon martensitic stainless steel developed on the basis of CA-6NM cast steel. It is a typical steel grade of super martensitic stainless steel.

M.-NR. / EN DIN AISI UNS BS AFNOR GOST
1.4313 X3CrNiMo13-4 F6NM430 J91540 425 C 11 Z 6 CN 13-04 03X13H4M

Standard of UNS J91540

China

Taigang

00Cr13Ni5Mo

S-135

GB/T 20878-2007

GB/T 3280-2015

GB/T 4237-2015

04Cr13Ni5Mo

S41595

JB/T 7349-2002

ZG06Cr13Ni5Mo

USA

ASTM A182-10a

F6NM,S41500

Japan

JIS G 3214:2009

SUS F6NM

JIS G 5121:2003

SCS6

Germany

DIN EN 10088-2:2005

X3CrNiMo13-4

1.4313

Composition specification (%) of UNS J91540

Standards Steel Grades
Chemical Composition %
C: Mn: Si: P: S: Cr: Ni: Mo: N:
EN 1.4313 – X3CrNiMo13-4
<0.05 <1.5 <0.7 <0.04 <0.015 12.0 – 14.0 3.5 – 4.5 0.3 – 0.7 >0.02
ASTM UNS S41500 – F6NM – F 6NM – 13Cr-4Ni – AISI 415
<0.05 0.5 – 1.0 <0.6 <0.03 <0.030 11.5 – 14.0 3.5 – 5.5 0.5 – 1.0
ASTM UNS J91540 – CA6NM – CA-6NM
<0.06 <1.0 <1.0 <0.04 <0.030 11.5 – 14.0 3.5 – 4.5 0.4 – 1.0
AF Z6CN13-04 – Z 6 CN 13-04
<0.06 <1.0 <0.75 <0.04 <0.015 12.0 – 13.5 3.5 – 4.5 0.3 – 0.5
BS 425C11 – 425 C 11
<0.1 <1.0 <1.0 <0.04 <0.03 11.5 – 13.5 3.4 – 4.2 <0.6
SNV

VSN

X5CrNi13-4 – X 5 CrNi 13-4
<0.07 <1.5 <1.00 <0.035 <0.025 12.0 – 13.5 3.5 – 4.5 0.4 – 0.6
JIS SCS5 – SCS 5
<0.06 <1.0 <1.0 <0.040 <0.040 11.0 – 14.0 3.5 – 4.5

❒ Mechanical properties of 1.4313, X3CrNiMo13-4 steel:


Delivery condition +A: 

  • Tensile strength, Rm: <1100 MPa
  • HBW Hardness: <320

Delivery condition +QT650 

  • Tensile strength, Rm: 700 – 850 MPa
  • Yield point, Re: >520 MPa
  • Elongation, A: > 15%
  • Impact resistance, KV: >70 J

Delivery condition +QT780 

  • Tensile strength, Rm: 780 – 980 MPa
  • Yield point, Re: >620 MPa
  • Elongation, A: > 15%
  • Impact resistance, KV: >70 J

Delivery condition +QT900 

  • Tensile strength, Rm: 900 – 1100 MPa
  • Yield point, Re: >800 MPa
  • Elongation, A: >12%
  • Impact resistance, KV: >50 J

Delivery condition +QT according to EN 10028-7 

  • Tensile strength, Rm: 780 – 980 MPa
  • Yield point, Re: >650 MPa
  • Elongation, A: >14%
  • Impact resistance, KV: >70 J

Characteristics of UNS J91540

UNS J91540 (S-135/00Cr13Ni5Mo) steel abandons high-carbon martensite and the strengthening means of forming carbides, and uses the formation of low-carbon martensite with high toughness and supplementary strengthening with nickel and molybdenum alloy elements as the main strengthening means. Through appropriate heat treatment, it has a composite structure of low-carbon lath martensite and reverse transformed austenite, which not only retains a high level of strength, but also has good toughness and weldability. In addition, this steel grade also has excellent erosion resistance, abrasion resistance, and corrosion resistance, which can meet the long-term requirements of water conservancy projects to withstand sediment erosion.

Application of UNS J91540

UNS J91540 (S-135/00Cr13Ni5Mo) steel is mainly used for high-strength load-bearing parts that need to be welded. The most common is as hydroelectric steel, used to manufacture the wear-resistant runner and runner lower ring of hydraulic turbine equipment; in the petroleum industry, it is used as a pipeline that is resistant to CO2, H2S and needs to be welded on site; in the nuclear industry, it is used The drive shaft and control rod drive mechanism of PWR 2 and 3 auxiliary pumps.

Related News

  • * 暂无相关文章
العربيةБългарски简体中文繁體中文DanskNederlandsEnglishFrançaisDeutschBahasa IndonesiaItaliano日本語한국어LatinPortuguêsРусскийEspañolதமிழ்ไทยTürkçe