Yantai Enerserva Machinery Co., Ltd.

Yantai Enerserva Machinery Co., Ltd.

Sour Service Drill Pipe (H2S)

Category: Drill Pipe
Views: 1052

  • PRODUCT DETAIL

Standard: IRP1.8, NACE MR0175 / ISO 15156

Size Range: 2-3/8" ~ 6-5/8"

Special Features:

• Strict control over the S and P content (S+P < 0.03%)

• Increase of the Cr, Mo content, unique heat treatment process, grain refinement. (The grain size exceeds Grade 8 standards in ASTM Standard)

• Compound with double shoulder high torque connection (DS, DSHT)

• Strict control over the intensity, rigidity and other indexes.



Specification and Feature of Materials:

Contents

DP95SS

DP105SS

PIPE SPECS

Chemical composition wt%

S≤0.005, P≤0.010

S≤0.005, P≤0.010

metallographic structure

tempered martensite, ≥95%

tempered martensite, ≥95%

Grain size

ASTM E112 Grade 8 or finer

ASTM E112 Grade 8 or finer

Yield strength

655/758MPa(95/110KSI)

724/827MPa(105/120KSI)

Tensile Strength

724/896MPa(105/130KSI)

793/965MPa(115/140KSI)

Elongation %

≥17

≥17

Impact Energy (7.5*10*55, -20)

(single)≥80J(59Ft-Lb)

(single)≥80J(59Ft-Lb)

Hardness HRC

Single18---27, average≤25

Single21---29, average≤28

sulfur tolerance

≥557MPa(80.8KSI), ≥85%SMYS

≥616MPa(89.2KSI),

≥85%SMYS

TOOL JOINT SPECS (DPTJ110SS)

Chemical composition

S≤0.005, P≤0.010

S≤0.005, P≤0.010

metallographic structure

tempered martensite, ≥90%

tempered martensite, ≥90%

Grain size

Grade 7 or finer

Grade 7 or finer

Yield strength

758/862MPa (110/125KSI)

758/862MPa (110/125KSI)

Tensile Strength

862/1000MPa(125/145KSI)

862/1000MPa(125/145KSI)

Elongation %

≥15

≥15

Impact Energy (10*10*55, -20)

Single≥90J(66Ft-Lb)

Single≥90J(66Ft-Lb)

Hardness HRC

Single≤32, Average≤30

Single≤32, Average≤30

Sulfur Tolerance

≥493MPa(71.5KSI)

≥493MPa(71.5KSI)

≥65%SMYS

≥65%SMYS


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