• Model NO.：KM-143
• Size：Outside Diameter 10-194mm, Thickness 1-20mm
• Delivery Time：20-35 Days Ex Mill
• Sample：Can Be Provided
• Testing Way：The Third Party Test Acceptable
• Material Grade：42CrMo4
• Surface：Oiled or Black Painted
• Loading Port：Chinese Main Port
• MOQ：5tons , Each Size
• Transport Package：in Bundles or According to Customers′ Request
• Specification：ISO
• Trademark：kingmetal
• Origin：China
• Production Capacity：20000ton,Month

DIN/EN 10297-1 42CrMo4 +QT Steel Pipe For Oxygen Bottle

Chromium-Molybdenum Steel 42CrMo4 is suitable for oxygen cylinder and bottles with excellent corrosion resistance, high wear resistance and good strength properties. Steel pipe 42CrMo4 +QT is used for oxygen gas bottle or tank, bearing retaining parts. It's also used in vehicle, vessel manufacturing, machine engineering (e.g. crankshafts, pinions, balancer shafts). The steel shows high resistivity to static and dynamic loading. Lowest working temperature -20 °C.

 

Standards: DIN/EN 10297-1

Size: 89-368mm*4-18mm*5.8-12m

Heat treatment: Quenching and tempering

Delivery condition: Hot /Cold rolled

 

EQUIVALENT MATERIAL :

DIN

AISI

JIS

GB

42CrMo4

4130

SCM430(SCM2)

42CrMo4

 

CHEMICAL PROPERTIES:

C

Cr

Mn

Mo

Si

P

S

0.38 -   0.45

0.9 - 1.2

0.6 - 0.9

0.15 - 0.3

≤0.4

≤0.025

≤0.035

 

MECHANICAL PROPERTY: 

Size   in mm

Tensile   strength

Rp0,2   min

Yield   Strength

Rm

Elongation  

A5   (%)

Impact   strength

Kv/Ku   (J)

d≤16;   t≤ 8

900

1100-   1300

10.0

30

16<d≤40; 8<t≤20

750

1000-   1200

11.0

35

40<d≤100; 20<   t≤60

650

900-   1100

12.0

35

100<d≤160; 60   < t≤100

550

800-   950

13.0

35

160<d≤250; 100   < t≤160

500

750-   900

14.0

35

 

RELATED STANDARDS:

DIN EN 10297-1: Seamless tubes for mechanical and general engineering purpose-technical delivery conditions part 1: non-alloy and alloy steel tubes

DIN EN 10083-2: Seamless tubes for mechanical and general engineering purpose-technical delivery conditions part 2: Stainless steel;

 

The42CrMo4 steel has good machinability, high permeability, good toughness, easy to polish, even little deformation during quenching and high creep strength and endurance at high temperatures. 42CrMo4 +QT steel pipes are generally intended for the manufacture of quenched and tempered, flame or induction hardened machine parts, but alternatively may be supplied in the normalized condition.

 

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