Quench & Tempered Rods Vs Normalized & Tempered Rods

For Years the sucker rod market has never had the infrastructure to mass-produce quality Quenched & Tempered sucker rods. The machinery is costly, the process is difficult to master, and the industry has widely defaulted to the easily manufactured Normalized & Tempered rods.

Today’s operators are missing out on the most substantial benefit of Quenched & Tempered sucker rods…Fatigue Resistance. Stress cracks are inevitable with all steel, especially under stress loads. The fatigue resistance of a steel determines how resistant to failure a rod will be once those stress cracks initiate. Aside from chemical programs, well design, rod handling and many other variables that plague sucker rod failures…Operators should have confidence that the rod they’re receiving is the most durable and reliable product they can find.

The below test was a blind Charpy Impact test conducted by an independent third party metallurgy lab in Houston. They collected “KD” (4320, 4330, 4720, etc.) and High Strength (4138, 3130, etc.) from all major manufacturers to conduct this test. This test proved that Q&T rods are more fatigue resistant that N&T rods in all categories.

API-D Sucker Rod

Product Overview

Material AISI 4142 steel
Heat-treatment Method Normalized and Tempered
Suitable Application and Environment Medium to Medium-high Load, Limited Corrosive Wells

Mechanical Properties

Rod Steel Heat Treatment Tensile Strength Yield Yield Elongation Reduction Hardness
ksi Mpa ksi Mpa 8″, % % RC
D 4142 Normalized & Tempered 120/140 827/965 85 min 586 min 10 min 45 min 23/31
Swipe right to see more 

Chemical Properties

C Mn Mo Cr Ni Cu P S Si V Al
0.38/0.45 0.80/1.00 0.15/0.25 0.80/1.10 0.45 max – 0.035 max 0.035 max 0.15/0.35 – –
Swipe right to see more 

Download Datasheet to See Full Specifications

Download Datasheet

EKD Sucker Rod

Product Overview

Material 3130
Heat-treatment Method Quenched and Tempered
Suitable Application and Environment Light to Medium Loading, Inhibited Corrosive Wells

Mechanical Properties

Rod Steel Heat Treatment Tensile Strength Yield Yield Elongation Reduction Hardness
ksi Mpa ksi Mpa 8″, % % RC
EKD 3130 Quenched & Tempered 125/140 862/965 115 min 793 min 12 min 55 min 25/31
Swipe right to see more 

Chemical Properties

C Mn Mo Cr Ni Cu P S Si V Al
0.22/0.29 0.71/1.00 0.05 max 0.41/0.65 0.70/1.00 0.35 max 0.025 max 0.035 max 0.15/0.35 – –
Swipe right to see more 

Download Datasheet to See Full Specifications

Download Data Sheet

EHK High Strength Sucker Rod

Product Overview

Material AISI 3130 steel
Heat-treatment Method Quenched and Tempered
Suitable Application and Environment Heavy Loading, Deep and Inhibited Corrosive Wells

Mechanical Properties

Rod Steel Heat Treatment Tensile Strength Yield Yield Elongation Reduction Hardness
ksi Mpa ksi Mpa 8″, % % RC
EHK 3130 Quenched & Tempered 140/155 965/1068 130 min 896 min 11 min 50 min 30/35
Swipe right to see more 

Chemical Properties

C Mn Mo Cr Ni Cu P S Si V Al
0.22/0.29 0.71/1.00 0.05 max 0.41/0.65 0.70/1.00 0.35 0.025 max 0.035 max 0.15/0.35 – –
Swipe right to see more 

Download Datasheet to See Full Specifications

Download Data Sheet

EH Ultra-High Strength Sucker Rod

Product Overview

Material Special Alloy Steel
Heat-treatment Method Quenched and tempered + Induction Case Hardened
Suitable Application and Environment Extreme Heavy Load, Non-corrosive Wells

Mechanical Properties

Rod Steel Heat Treatment Tensile Strength Yield Yield Elongation Reduction Hardness
ksi Mpa ksi Mpa 8″, % % RC
EH 25CrMoA Induction Case Hardened 140-180 993/1241 – – – – –
Swipe right to see more 

Chemical Properties

C Mn Mo Cr Ni Cu P S Si V Al
0.25/0.28 0.40/0.70 0.15/0.25 0.80/1.10 0.30 max 0.20 max 0.025 max 0.025 max 0.17/0.37 – –
Swipe right to see more 

Download Datasheet to See Full Specifications

Download Datasheet

EH9 Chromium, High Strength Sucker Rod

Product Overview

Material Exceed Chromium Special Alloy Steel
Heat-treatment Method Normalized and Tempered
Suitable Application and Environment Heavy Loading / Extreme Corrosive Environment

Mechanical Properties

Rod Steel Heat Treatment Tensile Strength Yield Yield Elongation Reduction Hardness
ksi Mpa ksi Mpa 8″, % % RC
EH9 00Cr12 Normalized & Tempered 145/167 1000/1150 115 min 793 min 10 min 45 min 30/34
Swipe right to see more 

Chemical Properties

C Mn Mo Cr Ni Cu P S Si V Al
0.07 max 0.80/1.00 0.15/0.25 11.0/12.0 0.80/1.00 0.30/0.40 0.025 max 0.01 max 0.5 max 0.05/0.12 0.06 max
Swipe right to see more 

Download Datasheet to See Full Specifications

Download Datasheet