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Martensitic Martensite Stainless Steel

EN 10269 EN10302 EN10088-1 DIN17240 1.4938 X12CrNiMoV12-3 Stainless Steel








EN 10269 EN10302 EN10088-1 DIN17240 1.4938 X12CrNiMoV12-3 Stainless Steel is martensitic stainless steel for forming into stainless steel wrought products, known as Wrought Martensitic Creep-Resisting Steel and Heat Resisting Stainless Steel. 1.4938 steel is High strength steel with good oxidation resistance. The use purpose of 1.4938 is similar with 1.4913 stainless steel.

1.4938 Stainless Steel Standard Specification:

EN 10302 Creep resisting steels, nickel and cobalt alloys
EN 10269 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
EN 10088-1 Stainless steels. List of stainless steel
DIN 17240 Heat Resisting and Highly Heat Resisting Materials for Bolts and Nuts; Quality Specifications


EN10088-1 1.4938 X12CrNiMoV12-3Stainless Steel Physical Properties

Grade Density g/cm³ Elastic Modulus at
Gpa		 Mean Coefficient of Thermal
Expansion between 20°C and 		Thermal Conductivity at 20°C (W/m.K) Specific Thermal Capacity at 20°C (J/kg.K) Electrical Resistivity at 20°C
(Ω.m²/m)
20°C 100°C 200°C 100°C 200°C 300°C 400°C 500°C 600°C
1.4938 7.8 216 209 200 10.8 11 11.3 11.6 11.9 12.1 30 460 0.60

EN10269 1.4938 X12CrNiMoV12-3 Stainless Steel Mechanical Properties
Designation Max dia. mm Minimum proof strength Rp0.2 N/mm2 at a temperature of (°C)
Steel name Steel No. 50 100 150 200 250 300 350 400 450 500 550 600 650
Steel for quenching and tempering
X12CrNiMoV12-3 1.4938 160 730 680 668 655 653 650 630 610 560 505 400 - -

Yield Strength
Rp0.2 (MPa)		 Tensile Strength
Rm (MPa)		 Impact
KV/Ku ( J )		 Elongation
A  (%)		 Reduction in
cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell Hardness (HBW) max
760 930/1130 24 14 40 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

EN10269 1.4938 X12CrNiMoV12-3 Stainless Steel Chemical Composition
Designation Chemical Composition (% by mass - max unless stated)
Steel name Steel number C Si Mn P max S max Al tot B Cr Mo Ni V Other
Steels for quenching and tempering
X12CrNiMoV12-3 1.4938 0.08
/0.15		 0.50 0.40
/0.90		 0.025 0.015 - - 11.00
/12.50		 1.50
/2.00		 2.00
/3.00		 0.25
/0.40		 N 
0.02
/0.04

1.4938 Stainless Steel is usually produced by AOD/VIM/VOD and followed by electroslag refining (ESR) if necessary for special purpose.

1.4938 Stainless Steel Bars and, where applicable, 1.4938 Stainless Steel forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements. Bars are usually supplied bright in the solution annealing condition.

Final heat treatment - heat treatment / Quenched and Tempered / Solution treatment
Steel number Heat Treatment Symbol Quench/Anneal Temperature Cooling Temper Temperature
1.4913 Quenched and Tempered 1035°C /1062 °C oil 600°C /670 °C


EN10269 1.4938 X12CrNiMoV12-3Stainless Steel Size Availability
Steel Grade Specification Processing Range (mm)
1.4938 Stainless Steel Round Bar and Hollow Bar Φ1 to Φ2000mm
Square and Flat Steel Φ10 to Φ100mm
Plate and Sheet 0.08-800 (Length)×10-1500(Width)×Thickness
Tubing or Pipe OD:Φ4-410, Wall Thickness:1-35 mm, Lenght:10-12000mm
Coil and Strip Steel Thickness:0.1mm Width:1500mm
Forging Rings / Cylindrical / Disks


Wrought Stainless Steel

  Stainless Steel Tube/Pipe/Tubing, Nickel Alloy Tubing, Brass Alloy Tubing, Copper Nickel Pipe Material Grades


EN10269 1.4913 X19CrMoNbVN11-1Stainless Steel Tubing Size range:
Size:1/4″ × 0.035″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:3/8″ × 0.035″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1/2″ × 0.035″ 
1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:5/8″ × 0.035″ 
1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:3/4″ × 0.035″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1″ × 0.035″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:5/16″ × 0.035″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1/4″ × 0.049″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:3/8″ × 0.049″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1/2″ × 0.049″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:5/8″ × 0.049″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:3/4″ × 0.049″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1″ × 0.049″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1/4″ × 0.065″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:3/8″ × 0.065″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1/2″ × 0.065″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:5/8″ × 0.065″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:3/4″ × 0.065″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1″ × 0.065″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 
Size:1″ × 0.120″ 
EN 10302 EN10269 EN 10088-1 DIN 17240 1.4938 X12CrNiMoV12-3 Stainless Steel Tubing and Pipes 

Related References:
EN 10269 Chemical Compositions of Stainless Steel
EN 10269 Elevated and Sub-Zero Temperature Mechanical Properties
EN 10269 Room Temperature Mechanical Properties of Stainless Steel
Martensitic and Precipitation Hardening Steel Comparison Table
Martensitic Stainless Steel for Knife Applications – Part 1: Fe-Cr-C

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EN 10216-5
ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
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UNS N08020 Alloy 20 Tubing
UNS N02200 Alloy 200 Tube
UNS N02201 Alloy 201 Pipe
UNS N04400 Monel 400 Tubing
N06600 Inconel 600 Tube
N06601 Inconel 601 Tubing
N06625 Inconel 625 Tubes
N08800 Incoloy 800 Tube
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N08811 Incoloy 800HT Tubing
UNS N08825 Incoloy 825 Pipe
ASTM B622 N10276 C276 Tubing
ASTM B622 N06022 Hastelloy C-22 Alloy Tubes
C28000 Brass Seamless Tubes C44300 Brass Seamless Tubes
C68700 Brass Seamless Tubes
C70600 Copper Nickel Tubes
C71500 Copper Nickel Tubes
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DIN 2393 St28 St34.2 St37.2 St44.2 St52.3 Welded Precision Steel Tubes
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