The Right Combination

Alloy Steel

Iron plus carbon equals steel. But additional elements are usually present, too — sulphur and phosphorus, for example, are common impurities. Minimizing these elements improves steel quality, and by adding the perfect proportions of chromium, molybdenum, vanadium or nickel, we can create the perfect material for your needs.

⚙️ Alloy Steel

Alloy Steel Grades

A steel alloy is created when other metals are added to the basic combination of iron and carbon, improving its properties. Looking for higher strength, corrosion resistance or better response to heat treatment? There's an alloy for that. When the percentage of alloy material is below the level indicated by specialized terms such as 'chrome' or 'stainless,' the product is simply called 'alloy steel.'

Key Characteristics

Enhanced strength through alloying elements
Improved heat treatment response
Better wear resistance
Controlled molybdenum, vanadium, or nickel content
Superior toughness in demanding conditions

Applications

Drilling equipment
Tubing and casing
Mechanical components
High-strength fasteners
Wear-resistant parts

8630 Mod

Mechanical Bar & Tube

General purpose pipe manufactured to ASTM Specification 519. Widely used in oil-patch applications such as connectors, hangers and block valves. Higher strength levels can be achieved by suitable heat treatment, but these are not NACE MR0175 approved.

Composition:

Element	Min %	Max %
C	0.28	0.33
Mn	0.7	0.95
Mo	0.35	0.45
Cr	0.4	0.6
Ni	-	0.9
P	-	0.035
S	-	0.04
Si	-	0.35

Mechanical Properties	Metric	Imperial
Tensile Strength	655 MPa min	95,000 psi min
Yield Strength	517 MPa min	75,000 psi min
Total Elongation Under Load	17.000 %	-
Hardness	22 Max HRC	-

K55

Mechanical Bar & Tube OCTG & Linepipe

General purpose pipe manufactured to API specification 5CT. Similar to J55 but the minimum tensile strength is higher

Composition:

Element	Min %	Max %
P	-	0.03
S	-	0.03

No mechanical properties available for this yield condition.

4130

Mechanical Bar & Tube

General purpose pipe manufactured to ASTM Specification 519. 4130 has improved weldability compared to 4140 (which has a higher carbon level) though this is achieved at the expense of through thickness strength.

Composition:

Element	Min %	Max %
C	0.28	0.33
Mn	0.4	0.6
Mo	0.15	0.25
Cr	0.8	1.1
P	-	0.04
S	-	0.04
Si	-	0.35

Mechanical Properties	Metric	Imperial
Tensile Strength	689 MPa min	100,000 psi min
Yield Strength	552 MPa min 655 MPa max	80,000 psi min 95,000 psi max
Total Elongation Under Load	20.000 %	-
Hardness	23 Max HRC	-

4130M

Mechanical Bar & Tube

General purpose pipe manufactured to ASTM Specification 519.

Composition:

Element	Min %	Max %
C	0.25	0.33
Mn	0.6	0.9
Mo	0.65	0.75
Cr	1.2	1.5
Ni	-	0.25
Cu	-	0.25
P	-	0.015
S	-	0.01
Si	-	0.35

Mechanical Properties	Metric	Imperial
Tensile Strength	689 MPa min	100,000 psi min
Yield Strength	552 MPa min 655 MPa max	80,000 psi min 95,000 psi max

4140

Mechanical Bar & Tube

General purpose pipe manufactured to ASTM Specification 519.

Composition:

Element	Min %	Max %
C	0.38	0.43
Mn	0.75	1
Mo	0.15	0.25
Cr	0.8	1.1
Ni	-	0.25
Cu	-	0.25
P	-	0.04
S	-	0.04
Si	-	0.35
V	-	0.3
Al	-	0.04

Mechanical Properties	Metric	Imperial
Tensile Strength	689 MPa min	100,000 psi min
Yield Strength	552 MPa min 655 MPa max	80,000 psi min 95,000 psi max
Total Elongation Under Load	20.000 %	-
Hardness	22 Max HRC	-

4145

Mechanical Bar & Tube

Composition:

Element	Min %	Max %
C	0.43	0.48
Mn	0.75	1
Mo	0.15	0.25
Cr	0.8	1.1
P	-	0.04
S	-	0.04
Si	-	0.35

No mechanical properties available for this yield condition.

4145M

Mechanical Bar & Tube

Composition:

Element	Min %	Max %
C	0.042	0.049
Mn	0.75	1.3
Mo	0.15	0.35
Cr	0.75	1.2
Ni	-	1
P	-	0.025
S	-	0.025
Si	-	0.035

Mechanical Properties	Metric	Imperial
Tensile Strength	965 MPa min	140,000 psi min
Yield Strength	758 MPa min	110,000 psi min
Total Elongation Under Load	14.000 %	-
Hardness	36 Max HRC	-

4330 V MOD

Mechanical Bar & Tube

Composition:

Element	Min %	Max %
C	0.28	0.33
Mn	0.75	1
Mo	0.35	0.6
Cr	0.8	1.1
Ni	-	3
Cu	-	0.35
P	-	0.015
S	-	0.005
Si	-	0.3
V	-	0.12

Mechanical Properties	Metric	Imperial
Tensile Strength	1,103 MPa min	160,000 psi min
Yield Strength	1,034 MPa min	150,000 psi min
Total Elongation Under Load	14.000 %	-
Hardness	40 Max HRC	-

4340

Mechanical Bar & Tube

Composition:

Element	Min %	Max %
C	0.38	0.43
Mn	0.6	0.8
Mo	0.15	0.45
Cr	0.7	0.9
Ni	-	2
P	-	0.035
S	-	0.04
Si	-	0.35

Mechanical Properties	Metric	Imperial
Tensile Strength	1,069 MPa min	155,000 psi min
Yield Strength	800 MPa min	116,000 psi min
Total Elongation Under Load	11.000 %	-
Hardness	37 Max HRC	-

H40

OCTG & Linepipe

General purpose pipe manufactured to API specification 5CT.

Composition:

Element	Min %	Max %
P	-	0.03
S	-	0.03

Mechanical Properties	Metric	Imperial
Tensile Strength	414 MPa min	60,000 psi min
Yield Strength	276 MPa min 552 MPa max	40,000 psi min 80,000 psi max
Total Elongation Under Load	0.500 %	-

J55

OCTG & Linepipe

General purpose manufactured to API specification 5CT. Similar to K55, except that the minimum tensile strength is lower.

Composition:

Element	Min %	Max %
P	-	0.03
S	-	0.03

Mechanical Properties	Metric	Imperial
Tensile Strength	517 MPa min	75,000 psi min
Yield Strength	379 MPa min 552 MPa max	55,000 psi min 80,000 psi max
Total Elongation Under Load	0.500 %	-

N80

OCTG & Linepipe

General purpose pipe manufactured to API specification 5CT. Available in both standard Quench and Tempered API N80 and lower cost Normalized API N80 (walls less than 0.5"). Inspection, testing and dimensions are in accordance with API 5CT for grade N80. Charpy V-notch impact test absorbed energy results meet API SR16 and are lower in Normalized N80 than Quench and Tempered N80.

Composition:

Element	Min %	Max %
P	-	0.03
S	-	0.03

Mechanical Properties	Metric	Imperial
Tensile Strength	689 MPa min	100,000 psi min
Yield Strength	552 MPa min 758 MPa max	80,000 psi min 110,000 psi max
Total Elongation Under Load	0.500 %	-

L80

OCTG & Linepipe

Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. L80 is usually used in wells with sour (hydrogen sulfide) environments.

Composition:

Element	Min %	Max %
C	-	0.43
Mn	-	1.9
Ni	-	0.25
Cu	-	0.35
P	-	0.03
S	-	0.03
Si	-	0.45

Mechanical Properties	Metric	Imperial
Tensile Strength	655 MPa min	95,000 psi min
Yield Strength	552 MPa min 655 MPa max	80,000 psi min 95,000 psi max
Total Elongation Under Load	0.500 %	-
Hardness	23 Max HRC 241 Max HBW	- -

9Cr-L80

OCTG & Linepipe

Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. Used in wells with carbon dioxide environments.

Composition:

Element	Min %	Max %
C	-	0.15
Mn	0.3	0.6
Mo	0.9	1.1
Cr	8	10
Ni	-	0.5
Cu	-	0.25
P	-	0.02
S	-	0.01
Si	-	1

Mechanical Properties	Metric	Imperial
Tensile Strength	655 MPa min	95,000 psi min
Yield Strength	552 MPa min 655 MPa max	80,000 psi min 95,000 psi max
Total Elongation Under Load	0.500 %	-
Hardness	23 Max HRC 241 Max HBW	- -

13Cr-L80

OCTG & Linepipe

Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. Used in wells with carbon dioxide environments.

Composition:

Element	Min %	Max %
C	0.15	0.22
Mn	0.25	1
Cr	12	14
Ni	-	0.5
Cu	-	0.25
P	-	0.02
S	-	0.01
Si	-	1

Mechanical Properties	Metric	Imperial
Tensile Strength	655 MPa min	95,000 psi min
Yield Strength	552 MPa min 655 MPa max	80,000 psi min 95,000 psi max
Total Elongation Under Load	0.500 %	-
Hardness	23 Max HRC 241 Max HBW	- -

C90

OCTG & Linepipe

API controlled yield strength grade generally for use in sour condensate wells. Extensive hardness testing is required along with SSCC testing per NACE Standard TM-0177-Method A. The minimum threshold stress required is 80 percent of specified minimum yield strength.

Composition:

Element	Min %	Max %
C	-	0.35
Mn	-	1.2
Mo	0.25	0.85
Cr	-	1.5
Ni	-	0.99
P	-	0.02
S	-	0.01

Mechanical Properties	Metric	Imperial
Tensile Strength	689 MPa min	100,000 psi min
Yield Strength	621 MPa min 724 MPa max	90,000 psi min 105,000 psi max
Total Elongation Under Load	0.500 %	-
Hardness	25 Max HRC 255 Max HBW	- -

T95

OCTG & Linepipe

API controlled yield strength grade. Generally for use in sour condensate wells. Extensive hardness testing is required along with SSCC testing per NACE Standard TM-0177-Method A. The minimum threshold stress required is 80 perfect of specified minimum yield strength.

Composition:

Element	Min %	Max %
C	-	0.35
Mn	-	1.2
Mo	0.25	0.85
Cr	0.4	1.5
Ni	-	0.99
P	-	0.02
S	-	0.01

Mechanical Properties	Metric	Imperial
Tensile Strength	724 MPa min	105,000 psi min
Yield Strength	655 MPa min 758 MPa max	95,000 psi min 110,000 psi max
Total Elongation Under Load	0.500 %	-
Hardness	25 Max HRC 255 Max HBW	- -

C110

OCTG & Linepipe

API controlled yield strength grade generally for use in deeper sour condensate wells. Extensive hardness testing is required along with SSCC testing per NACE Standard TM-0177-Method A. The minimum threshold stress required is 85 percent of specified minimum yield strength.

Composition:

Element	Min %	Max %
C	-	0.35
Mn	-	1.2
Mo	0.25	1
Cr	0.4	1.5
Ni	-	0.99
P	-	0.02
S	-	0.005

Mechanical Properties	Metric	Imperial
Tensile Strength	793 MPa min	115,000 psi min
Yield Strength	758 MPa min 827 MPa max	110,000 psi min 120,000 psi max
Total Elongation Under Load	0.700 %	-
Hardness	30 Max HRC 286 Max HBW	- -

P110

OCTG & Linepipe

API grade for general use in deep wells. This grade is not generally considered suitable for sour condensate wells.

Composition:

Element	Min %	Max %
P	-	0.03
S	-	0.03

Mechanical Properties	Metric	Imperial
Tensile Strength	862 MPa min	125,000 psi min
Yield Strength	758 MPa min 965 MPa max	110,000 psi min 140,000 psi max
Total Elongation Under Load	0.600 %	-

Q125

OCTG & Linepipe

API grade for general use in deep wells. This grade is not generally considered suitable for sour condensate wells.

Composition:

Element	Min %	Max %
C	-	0.35
Mn	-	1.35
Mo	-	0.85
Cr	-	1.5
Ni	-	0.99
P	-	0.02
S	-	0.01

Mechanical Properties	Metric	Imperial
Tensile Strength	931 MPa min	135,000 psi min
Yield Strength	862 MPa min 1,034 MPa max	125,000 psi min 150,000 psi max
Total Elongation Under Load	0.650 %	-

Ready to Transform Your Operations?

Partner with us to streamline your supply chain, reduce costs, and accelerate growth. Get a customized quote tailored to your specific needs.

Request a Quote Connect With Us

50+

Years Experience

Global Facilities

ISO 9001

Certified

24/7

Support Available