1.2316 (X38CrMo16)  steel is a prehardened mold steel recognized for its superior corrosion resistance, achieved through the addition of chromium and molybdenum. It  widely apply in mold applications, including cores, inserts, and mold cavities, this steel  also use for the production of corrosive materials like PVC.

Standard:

DIN 1.2316 steel belongs  to the DIN standard EN ISO 4957 :2018

1.2316 steel round bar-OTAI 1.2316 Steel  Equivalent  and Chemical Composition

Standard Steel Grade
Chemical composition %
C: Mn: Si: P: S: Cr: Mo: Ni:
EN 10088-3:2014 X39CrMo17-1 – 1.4122
0.33 – 0.45 <1.5 <1.0 <0.04 <0.03 15.5 – 17.5 0.8 – 1.3 <1.0
ISO 4957：2018 X38CrMo16 – 1.2316
0.33 – 0.45 <1.5 <1.0 <0.03 <0.03 15.5 – 17.5 0.8 – 1.3 <1.0
DIN 17350：1980 X36CrMo17 – 1.2316
0.33 – 0.43 <1.0 <1.0 <0.03 <0.030 15.0 – 17.0 1.0 – 1.3 <1.0
NF A35-590 Z38CD16-01
0.33 – 0.45 <1.0 <1.0 <0.04 <0.015 15.5 – 17.5 0.8 – 1.3 –
NF Z35CD17
0.33 – 0.45 <1.5 <1.0 <0.03 <0.03 15.5 – 17.5 0.8 – 1.3 <1.0
PN 3H17M
0.33 – 0.43 <1.0 <1.0 <0.045 <0.030 15.5 – 17.5 1.0 – 1.3 <1.0

 

1.2316 Steel Physical Properties:

Thermal conductivity W.m-1.K-1 Thermal expansion Coefficient (10-6.K-1)
20°C 20-100°C 20-200°C 20-300°C 20-400°C Specificheat J/kg.°C
24.3 11 11.1 11.4 11.7 460

 

1.2316 Steel Mechanical Properties:

1.2316 delivery condition  usually  quenched and tempered to 280 – 325 HB (29 – 33 HRC)

Hardness  Rp 0.2  Yield
Strength		 Rm Tensile
strength		  Elongation  Reduction of area  Elastic modulus
HB MPa ksi MPa ksi % Z% GPa ksi
300 855 124 1020 148 13 38 205 29733

DIN 1.2316(X38CrMo16) steeel Heat treatment:

1.2316 steel Hardness -tempering temperature curves-OTAI1.2316 steel l is normally supplied in the quenched and tempered condition with a hardness of approximately 300 HB.

  • Annealing: 760 to 800 °C for about 4 to 5 hours; slow controlled cooling of 10 to 20 °C per hour to about 650 °C; further cooling in air, max. 230 HB
  • Stress Relieving: Soaking is done at temperature 600 – 650°C and then it is furnace cooled. This process is done at approx. 650 °C.
  • Hardening: Heat to 1020 – 1040 °C. Quench in oil at 500 – 550°C. Hardness after quenching: 48 – 52 HRC
  • Tempering: The hardness varies depending on the tempering temperature, ranging from 32 HRC to 49 HRC.

In case of complicated parts, holding time should be determined considering the thicker section of the part.

1.2316 Steel Applications:

-Suitable for manufacturing PVC, POM and other plastic products, or other corrosive plastics and high-gloss plastic molds;

-Thermoplastic plastic injection molds, extrusion molds;

-Thermoplastic blow molds;

-Main components of heavy-duty mold;

-Cold structural parts;

-It often use in the manufacture of TV casings, washing machines, refrigerator inner casings, buckets, etc.

Quality Assurance and Certification:

– Ensuring that the steel aligns with industry standards is crucial. Verify relevant certifications, such as DIN EN ISO 9001 for quality management systems.

Considerations for Buyers:

– Stress the importance of understanding the application’s specific requirements to choose the most suitable steel grade.
– Provide MTCs to check the chemical compositions and propertities if it is meet the material requirement

Conclusion:

1.2316 steel is a versatile mold steel offering prehardened convenience, excellent corrosion resistance, and adaptability to humid environments. Thanks to its mechanical and physical properties and coupled with straightforward heat treatment, make it a preferred choice for various applications in the mold industry.

Want to know more about the details of 1.2316, stock list and price , pls contact :

Joann -Otai specai steelE-mail:joann@otaisteel.com

WhatsApp:+8613128068365