Mast Raising Line & Drilling Wire Rope Product Guide (API 9A Standard)

1

EP6*19S-IWRC

High-strength carbon steel wires, IWRC (Independent Wire Rope Core) for added strength; EP coating for corrosion resistance

API 9A standard, 6-strand construction, 19S wires per strand, IWRC core

1. Fatigue from repeated mast raising/lowering cycles; 2. Abrasion from contact with rig hardware

1. Avoid sharp bends during mast erection (maintain minimum bend radius per API 9A Clause 5.4); 2. Inspect contact points with rig hardware for sharp edges and add protective sleeves

2

6*K31WS-EPIWRC

High-tensile carbon steel, K-shape strands, EPIWRC (Enhanced Plastic IWRC) core; corrosion-resistant plating

API 9A standard, 6-strand K31WS construction, EPIWRC core

1. Corrosion from outdoor oilfield moisture/saltwater; 2. Overloading beyond API 9A rated capacity

1. Clean and reapply corrosion-resistant grease after exposure to moisture/saltwater; 2. Never exceed rated load (verify with API 9A load charts before use)

3

EP6*26WS-IWRC

Carbon steel wires with EP (Ethylene Propylene) coating, 26WS wires per strand, IWRC core for rigidity

API 9A standard, 6-strand 26WS construction, EP coating, IWRC core

1. EP coating damage from friction with rough surfaces; 2. Fatigue from uneven load distribution

1. Avoid dragging the rope over rough rig surfaces; 2. Ensure even load distribution during mast raising (check rope alignment before lifting)

4

6*K26WS-IWRC

K-shaped carbon steel strands, 26WS wires per strand, IWRC core; heat-treated for enhanced wear resistance

API 9A standard, 6-strand K26WS construction, IWRC core

1. Strand deformation from sudden impact loads; 2. Abrasion from improper storage (kinking)

1. Avoid sudden impact loads (lower mast slowly to reduce stress); 2. Store in a straight, dry area to prevent kinking (follow API 9A storage guidelines)

5

6*K19S-IWRC

High-strength carbon steel, K19S stranded construction, IWRC core; anti-corrosion surface treatment

API 9A standard, 6-strand K19S construction, IWRC core

1. Wire breakage from repeated bending; 2. Corrosion from oilfield chemicals

1. Limit repeated bending at the same point (reposition rope periodically); 2. Clean immediately if exposed to oilfield chemicals to prevent coating damage

6

6*K36WS-IWRC

Thick carbon steel wires, K36WS strand design, IWRC core; reinforced for heavy-load applications

API 9A standard, 6-strand K36WS construction, IWRC core

1. Core damage from overloading; 2. Abrasion from contact with mast hardware during raising

1. Conduct pre-use load checks to ensure compliance with API 9A ratings; 2. Install wear pads at contact points with mast hardware

7

Mast raising line 76mm 52.2m 6*84WSNS+FC 1770MPa

Carbon steel wires, 84WSNS strands, FC (Fiber Core) for flexibility; 1770MPa tensile strength steel

76mm diameter, 52.2m length, 6*84WSNS+FC construction, 1770MPa tensile strength, API 9A compliant

1. Fiber core degradation from moisture; 2. Abrasion from outdoor debris (sand, gravel)

1. Keep rope dry (store in covered area when not in use); 2. Inspect for debris buildup before use and clean with compressed air

1

Drilling Raising rope 60mm 53.8m 6*76WSNS+IWRC ZS 177*⑴

Carbon steel wires, 76WSNS strands, IWRC core for strength; ZS lay direction, 1770MPa-grade steel

60mm diameter, 53.8m length, 6*76WSNS+IWRC construction, ZS lay, API 9A standard

1. IWRC core damage from sudden tensile shocks; 2. Corrosion from saltwater (offshore applications)

1. Avoid sudden tensile shocks (lift components gradually); 2. Use marine-grade corrosion inhibitor for offshore use (per API 9A Clause 6.3)

2

Drilling Raising rope 60.5mm 97.5m 6*76WSNS+FC 1770MPa

High-tensile carbon steel (1770MPa), 76WSNS strands, FC (Fiber Core) for flexibility; anti-corrosion coating

60.5mm diameter, 97.5m length, 6*76WSNS+FC construction, 1770MPa tensile strength

1. Fiber core rot from moisture; 2. Strand wear from contact with drilling tools

1. Inspect fiber core for moisture damage regularly (replace if soft/moldy); 2. Use protective sleeves where rope contacts sharp drilling tool edges

3

Drilling Raising rope 60.5 102.5 6*76WSNS+FC 1770

1770MPa carbon steel wires, 76WSNS strands, FC core; heat-treated for fatigue resistance

60.5mm diameter, 102.5m length, 6*76WSNS+FC construction, 1770MPa tensile strength, API 9A compliant

1. Wire breakage from repeated load cycles; 2. Coating damage from oilfield chemicals

1. Limit continuous load cycles (follow API 9A fatigue life guidelines); 2. Clean rope with neutral cleaner after chemical exposure

1

Drilling Wire rope 6*K19S IWRC left 35mm IPS 1200m

High-strength carbon steel, K19S strands, IWRC core; left lay direction, IPS (Improved Plow Steel) grade

35mm diameter, 1200m length, 6*K19S IWRC construction, left lay, IPS grade, API 9A standard

1. Abrasion from contact with drill floor surfaces; 2. Fatigue from repeated hoisting cycles

1. Install wear plates on drill floor contact points; 2. Rotate rope periodically to distribute wear evenly (per API 9A maintenance guidelines)

2

Drilling Wire rope 6*K19S IWRC left 32mm IPS 1200m

IPS-grade carbon steel, K19S stranded construction, IWRC core; left lay, anti-corrosion surface treatment

32mm diameter, 1200m length, 6*K19S IWRC construction, left lay, IPS grade

1. Corrosion from outdoor moisture; 2. Kinking from improper handling during installation

1. Reapply anti-corrosion grease monthly; 2. Uncoil rope slowly during installation to prevent kinking

3

Drilling Wire rope 6*K19S IWRC left 38mm IPS 2000m

Heavy-duty IPS carbon steel, K19S strands, IWRC core; left lay, reinforced for high-load hoisting

38mm diameter, 2000m length, 6*K19S IWRC construction, left lay, IPS grade

1. Core fatigue from continuous heavy loads; 2. Abrasion from winch drum contact

1. Avoid continuous operation at maximum load (allow periodic rest to reduce stress); 2. Inspect winch drum for rough spots and smooth if needed

4

Drilling Wire rope 6*K19S IWRC left 29mm IPS 1200m

IPS carbon steel wires, K19S strands, IWRC core; left lay, lightweight yet durable for medium-load use

29mm diameter, 1200m length, 6*K19S IWRC construction, left lay, IPS grade, API 9A compliant

1. Wire breakage from contact with sharp edges; 2. Corrosion from oil contamination

1. Remove sharp edges from rig components that contact the rope; 2. Clean rope regularly to remove oil buildup (use API 9A-approved cleaner)

5

6×19S-IWRC

Carbon steel wires, 19S wires per strand, IWRC core; precision-stranded for flexibility and strength

API 9A standard, 6-strand 19S construction, IWRC core

1. Fatigue from uneven bending; 2. Abrasion from rough surfaces

1. Maintain minimum bend radius (per API 9A Clause 5.4); 2. Avoid dragging rope over rough terrain

6

6×26SW-IWRC

26SW wires per strand, carbon steel, IWRC core; swaged strands for enhanced wear resistance

API 9A standard, 6-strand 26SW construction, IWRC core

1. Strand separation from improper loading; 2. Corrosion from saltwater

1. Ensure load is centered to prevent strand separation; 2. Rinse with fresh water after offshore use and reapply grease

7

6×31SW-IWRC

31SW wires per strand, high-tensile carbon steel, IWRC core; heat-treated for fatigue durability

API 9A standard, 6-strand 31SW construction, IWRC core

1. Core damage from impact loads; 2. Abrasion from winch contact

1. Avoid sudden impact loads (lower loads slowly); 2. Inspect winch drum alignment to prevent uneven wear

8

6×K26SW-IWRC

K-shaped 26SW strands, carbon steel, IWRC core; enhanced for heavy-load drilling applications

API 9A standard, 6-strand K26SW construction, IWRC core

1. Kink damage from improper storage; 2. Wire wear from chemical exposure

1. Store rope on a reel to prevent kinking; 2. Isolate rope from oilfield chemicals when not in use

9

6×49SWS-IWRC

49SWS wires per strand, carbon steel, IWRC core; multi-wire design for flexibility and strength

API 9A standard, 6-strand 49SWS construction, IWRC core

1. Wire fatigue from frequent bending; 2. Corrosion from moisture

1. Limit bending at the same point; 2. Store in a dry, well-ventilated area

10

6×76WSNS-IWRC

76WSNS strands, high-tensile carbon steel, IWRC core; designed for ultra-heavy loads

API 9A standard, 6-strand 76WSNS construction, IWRC core

1. Core failure from overloading; 2. Abrasion from mast hardware

1. Never exceed API 9A rated load; 2. Install wear pads at mast hardware contact points

11

6×84WSNS-IWRC

84WSNS strands, carbon steel, IWRC core; reinforced for extreme drilling conditions

API 9A standard, 6-strand 84WSNS construction, IWRC core

1. Strand wear from outdoor debris; 2. Fatigue from continuous operation

1. Clean rope before use to remove debris; 2. Schedule periodic inspections (per API 9A Clause 7.2)

12

6×19-FC

19 wires per strand, carbon steel, FC (Fiber Core) for flexibility; cost-effective for medium-load use

API 9A standard, 6-strand 19 construction, FC core

1. Fiber core damage from moisture; 2. Abrasion from rough surfaces

1. Keep rope dry; 2. Avoid contact with rough rig components

13

6×37-FC

37 wires per strand, carbon steel, FC core; flexible for applications requiring tight bends

API 9A standard, 6-strand 37 construction, FC core

1. Fiber core rot from damp storage; 2. Wire breakage from sharp edges

1. Store in a dry area; 2. Use protective sleeves near sharp edges

14

18×7

18 strands, 7 wires per strand, carbon steel; lightweight and flexible for light-load drilling tasks

API 9A standard, 18-strand 7-wire construction

1. Strand separation from uneven loading; 2. Abrasion from friction

1. Ensure even load distribution; 2. Lubricate regularly to reduce friction

15

6×7-FC

6 strands, 7 wires per strand, carbon steel, FC core; simple construction for general drilling use

API 9A standard, 6-strand 7-wire construction, FC core

1. Wire wear from repeated use; 2. Corrosion from oil

1. Inspect for wire breakage regularly; 2. Clean rope to remove oil buildup

16

5×7-FC

5 strands, 7 wires per strand, carbon steel, FC core; compact design for tight spaces

API 9A standard, 5-strand 7-wire construction, FC core

1. Core damage from bending; 2. Abrasion from confined spaces

1. Maintain minimum bend radius; 2. Inspect confined contact points for wear

17

K5×7-FC

K-shaped 5 strands, 7 wires per strand, carbon steel, FC core; enhanced strength for medium loads

API 9A standard, K5-strand 7-wire construction, FC core

1. Kink damage from improper handling; 2. Corrosion from moisture

1. Handle rope carefully to prevent kinking; 2. Reapply corrosion-resistant grease regularly

18

K5×19S-FC

K-shaped 5 strands, 19S wires per strand, carbon steel, FC core; balanced design for smooth operation

API 9A standard, K5-strand 19S construction, FC core

1. Strand wear from friction; 2. Fiber core degradation

1. Lubricate strands to reduce friction; 2. Replace rope if core becomes soft

19

6×36WS-IWRC

36WS wires per strand, carbon steel, IWRC core; versatile for various drilling tasks

API 9A standard, 6-strand 36WS construction, IWRC core

1. Wire breakage from impact loads; 2. Abrasion from winch drums

1. Avoid sudden impacts; 2. Check winch drum for wear

20

6×K49SWS-IWRC

K-shaped 6 strands, 49SWS wires per strand, carbon steel, IWRC core; heavy-duty for extreme loads

API 9A standard, 6-strand K49SWS construction, IWRC core

1. Core fatigue from continuous heavy loads; 2. Corrosion from harsh environments

1. Schedule periodic rest periods to reduce core stress; 2. Use environment-appropriate corrosion protection

Why is API 9A certification important for mast raising lines and drilling wire ropes?

API 9A is the authoritative industry standard for oilfield wire ropes, establishing strict requirements for material quality, tensile strength, fatigue life, and load ratings (per API 9A Clause 4). Non-API ropes often fail prematurely (like the one in our case study) due to subpar materials and construction, leading to safety risks, unplanned downtime, and higher maintenance costs. API 9A compliance ensures your ropes meet safety and performance standards for critical oilfield operations.

How do I determine the correct wire rope model for my drilling rig or mast raising system?

Start by checking your equipment’s OEM manual, which specifies the required rope construction, diameter, length, and load capacity. You should also consider your operating environment (onshore/offshore for corrosion resistance) and follow API 9A guidelines for load matching. If you’re unsure, provide your equipment type, load requirements, and operating conditions to our team—we’ll help you select the exact model from our lineup, ensuring compatibility and API 9A compliance.

What’s the difference between IWRC and FC cores, and which one should I choose?

IWRC (Independent Wire Rope Core) is made of steel wires, offering higher tensile strength, rigidity, and resistance to core damage—ideal for heavy-load applications (mast raising, ultra-heavy drilling hoisting). FC (Fiber Core) is made of synthetic fibers, providing greater flexibility and lighter weight—best for applications requiring tight bends (light to medium-load drilling tasks). Choose based on your load requirements: IWRC for heavy loads, FC for flexibility.