WELDING PROCEDURE SPECIFICATION (WPS)
Clause 5 — Prequalified — AWS D1.1:2020
WPS Number
WIQ-COMBO-6010-71T1C-G2-001
Title
E6010 Root (SMAW) + E71T-1C Fill/Cap (FCAW-G) — CJP V-Groove 60° — Group II — All Position
JOINT DESIGN
Code Reference
Figure 5.1 — B-U2-GF (open root)
DESIGNATION: B-U2-GF
| DIMENSION | AS DETAILED | AS FIT-UP TOLERANCE | NOTES |
|---|
| Groove Angle (α) | 60° | +10°, −0° | — |
| Root Opening (R) | 1/8 to 3/16 in | +1/16 in, −0 | Set for E6010 keyhole |
| Root Face (f) | 0 to 1/16 in | Not limited | — |
BASE METAL
Specifications
A36 (all thk), A53 Gr B, A500 Gr B/C, A501, A516 Gr 65/70, A529 Gr 50/55, A572 Gr 42, A572 Gr 50, A572 Gr 55, A588, A709 Gr 36, A709 Gr 50, A709 Gr 50S, A709 Gr 50W, A709 HPS50W, A710 Gr A, A913 Gr 50, A992, A1011 HSLAS Gr 50, A1018, A1085, API 5L X52, API 5L X60, API 5L X65, ABS Gr A/B/D/E
Thickness Range
3/16 in to unlimited
POSITION
Qualified Positions
1G, 2G, 3G, 4G
Vertical Progression
uphill
PREHEAT & INTERPASS TEMPERATURE
Minimum Preheat
32°F (≤3/4 in) / 150°F (>3/4–1-1/2 in) / 225°F (>1-1/2–2-1/2 in) / 300°F (>2-1/2 in)
Code Reference
Table 5.8, Category A (E6010 root governs)
SHIELDING
Gas Type
100% CO2 (FCAW passes only)
APPROVED FILLER METAL SIZES
Welder may use any size listed below. Each size has its own amperage/voltage range and position limit per Table 5.1.
| Size | Class | Amps | Volts | Position Limit | Notes |
|---|
| 3/32 in | E6010 | 40-80 | 18-22 | All | ROOT PASS ONLY — SMAW DCEP |
| 1/8 in | E6010 | 75-130 | 19-24 | All | ROOT PASS ONLY — SMAW DCEP |
| 0.035 in | E71T-1C | 130-210 | 24-28 | All | Fill/Cap passes — FCAW-G |
| 0.045 in | E71T-1C | 150-300 | 24-30 | All | Fill/Cap passes — FCAW-G |
| 0.052 in | E71T-1C | 175-350 | 25-31 | All (reduced WFS for V/OH) | Fill/Cap passes — FCAW-G |
WELDING PARAMETERS
| Pass | Process | Filler / Class | Size | Current | Amps | Volts | Speed | Technique |
|---|
| Root | SMAW | E6010 | 3/32 in | DCEP | 40-80 | 18-22 | 3-7 in/min | either / uphill |
| Root | SMAW | E6010 | 1/8 in | DCEP | 75-130 | 19-24 | 4-8 in/min | either / uphill |
| Hot Pass | FCAW-G | E71T-1C | 0.035 in | DCEP | 130-210 | 24-28 | 8-16 in/min | either / uphill |
| Hot Pass | FCAW-G | E71T-1C | 0.045 in | DCEP | 150-300 | 24-30 | 8-16 in/min | either / uphill |
| Hot Pass | FCAW-G | E71T-1C | 0.052 in | DCEP | 175-350 | 25-31 | 8-16 in/min | either / uphill |
| Fill | FCAW-G | E71T-1C | 0.035 in | DCEP | 130-210 | 24-28 | 8-16 in/min | either / uphill |
| Fill | FCAW-G | E71T-1C | 0.045 in | DCEP | 150-300 | 24-30 | 8-16 in/min | either / uphill |
| Fill | FCAW-G | E71T-1C | 0.052 in | DCEP | 175-350 | 25-31 | 8-16 in/min | either / uphill |
| Cap | FCAW-G | E71T-1C | 0.035 in | DCEP | 130-210 | 24-28 | 8-16 in/min | either / uphill |
| Cap | FCAW-G | E71T-1C | 0.045 in | DCEP | 150-300 | 24-30 | 8-16 in/min | either / uphill |
| Cap | FCAW-G | E71T-1C | 0.052 in | DCEP | 175-350 | 25-31 | 8-16 in/min | either / uphill |
PREQUALIFIED VARIABLE TOLERANCES (TABLE 5.2)
| VARIABLE | TOLERANCE | NOTES |
|---|
| Amperage (Current) | ± 10% | From values specified on WPS |
| Voltage | ± 15% | From values specified on WPS |
| Travel Speed | ± 25% | From values specified on WPS |
| Wire Feed Speed | ± 10% | GMAW, FCAW, SAW only |
TABLE 5.1 ADDITIONAL LIMITS
•SMAW max electrode: 1/4 in (groove F/H), 5/16 in (fillet F/H), 5/32 in (V/OH)
•Pass width at surface ≥ pass depth (width/depth rule)
•Vertical progression: uphill (except undercut repair with ≥70°F preheat)
•Power source: Constant Voltage (CV) required
TECHNIQUE
Cleaning
Grind root pass to bright metal. Wire brush/grind between all passes.
FIELD TIPS — WeldIQ
▸Keep electrodes in a hot rod oven (250-300°F) until use. Low-hydrogen rods exposed >4 hours must be re-baked per manufacturer spec.
▸E6010/E6011: whip-and-pause technique for root. Listen for the crackle — consistent arc sound = good penetration.
▸Cellulosic rods produce heavy smoke. Ensure adequate ventilation, especially in confined spaces.
▸Open root: fit-up is EVERYTHING. Consistent root opening = consistent penetration. Check gap at least every 12 inches.
▸Use bridge tacks or tack from inside when possible. Tacks in the groove must be ground to feather edge before root pass.
▸Multi-electrode WPS: GRIND the root pass before switching to fill electrode. Hot pass must fuse completely into root.
▸Preheat category is based on the non-low-hydrogen electrode (E6010/E6011 = Category A, higher preheat than E7018).
▸Verify preheat with a temperature-indicating crayon (Tempilstik) or contact pyrometer. Check 3 inches from the weld on both sides.
CODE CITATIONS
D1.1:2020 Clause 5.2 · Table 5.3 Group II · Table 5.4 (E6010 + E71T-1C) · Table 5.8 Cat A · Clause 5.2.2
Generated by WeldIQ™ · AWS D1.1:2020 · Prequalified per Clause 5 — Prequalified