The Complete Guide to Ping G425 irons specs

The Ping G425 irons are game-improvement clubs with strong lofts, a high-strength Maraging steel face insert, and a multi-material badge structure. The set runs from 3-iron through LW, with standard lofts starting at 17.5° in the 3-iron and ending at 60° in the lob wedge, and standard lengths ranging from 39.625″ (3-iron) to 36.125″ (PW). Swing weight lands at D2 for steel-shafted builds and D1 for graphite at standard length.

Loft, Length, and Lie Specifications

The table below shows the standard production specs for the Ping G425 irons at the black color code (standard lie). Offsets are measured in millimeters and represent the distance from the leading edge to the hosel center line.

Iron	Loft (°)	Length (″)	Lie Angle (°)	Offset (mm)	Standard Swing Weight
3	17.5	39.625	59.75	4.76	D2 (steel) / D1 (graphite)
4	19.5	39.125	60.50	4.60	D2 / D1
5	22.0	38.625	61.25	4.44	D2 / D1
6	25.5	38.125	62.00	4.28	D2 / D1
7	29.0	37.625	62.75	4.12	D2 / D1
8	33.0	37.125	63.50	3.96	D2 / D1
9	38.0	36.625	64.25	3.80	D2 / D1
PW	43.0	36.125	65.00	3.64	D2 / D1
UW	48.0	35.625	65.00	3.48	D2 / D1
SW	54.0	35.375	65.50	3.32	D2 / D1
LW	60.0	35.125	65.50	3.16	D2 / D1

The offset is progressive — highest in the long irons to help square the face at impact, tighter in the scoring clubs for shot-shaping control.

Stock Shaft Options and Specs

Ping offered two stock shaft families for the G425 irons, each with different weight and flex profiles.

Ping AWT 2.0 Steel

The AWT 2.0 is a stepless steel shaft designed with ascending weight as the irons get shorter. This means the long irons use a lighter shaft to help launch the ball higher, while the short irons and wedges use a heavier shaft for feel and control.

Flex	Weight Range (grams)	Torque (°)
Soft Regular	95–105	2.1
Regular	99–111	2.0
Stiff	109–121	1.9
X-Stiff	119–131	1.8

Alta CB Red Graphite

The Alta CB Red is a counter-balanced graphite shaft that shifts the balance point higher in the grip, which lets you use a slightly heavier head weight without increasing the overall swing weight. It is designed to help golfers with moderate swing speeds launch the ball higher.

Flex	Weight Range (grams)	Torque (°)
Regular	65–73	4.2
Stiff	74–82	4.0

Other Factory Shaft Options

Ping also offered the G425 irons with premium no-upcharge shaft options including the Project X LZ (steel), True Temper Dynamic Gold (steel), Nippon N.S. Pro Modus³ (steel), and the Mitsubishi Tensei AV Series (graphite). Each shaft is available in multiple flexes and weighs differently, so check the specific shaft specs on Ping’s custom sheet or measure your current build if you are matching a set.

Head Technology and Construction Specs

The G425 iron head uses three main construction pieces that determine the performance specs:

• Maraging steel face insert — A high-strength stainless steel alloy that is thinner than standard 17-4 stainless. The face thickness varies across the hitting area (variable-face-thickness design) to preserve ball speed on off-center strikes. The face is welded into the main body rather than cast as one piece.
• Internal tungsten toe weight — Each head contains a high-density tungsten plug positioned in the toe. The weight of the plug varies by iron number to maintain consistent swing weight across the set. For example, the long irons use a heavier plug (up to 35 grams) to boost MOI, while the short irons use a lighter plug.
• Multi-material badge — An elastomer insert and aluminum plate cover a cavity behind the hitting area. The badge is designed to dampen vibration and improve sound at impact. It also contributes to the 9-gram total discretionary weight budget inside the head.

The combined result is a head with an MOI that Ping rates among the highest in the game-improvement category. The CG location is positioned low and slightly toward the heel in the long irons, then shifts progressively more centered in the short irons. Practically, this means heel-side mis-hits on a 4-iron still launch well with minimal distance loss, while toe-side shots on the 9-iron hold their line better. If you consistently miss toward the toe on mid-irons, the CG shift helps — but if your miss is consistently heel-side on short irons, a slight lie adjustment may balance the impact pattern.

Face Thickness and CT Values

Ping does not publish exact face thickness maps or CT (characteristic time) numbers for retail clubs. The face insert meets USGA and R&A spring-effect limits. If you need a CT measurement for competition verification, your club’s serial number can be submitted to Ping’s customer service for a factory report.

Custom Fitting: Color Codes and Lie Angles

Every Ping G425 iron is built to one of eight color codes that correspond to a specific lie angle offset from standard (black dot).

Color Code	Lie Angle Adjustment
Maroon	+4.5° upright
Silver	+3.0° upright
White	+2.0° upright
Green	+1.5° upright
Black	Standard (0°)
Blue	–0.75° flat
Purple	–1.5° flat
Gold	–3.0° flat

Each half-degree change in lie angle also adjusts the effective length by 1/8″ in the opposite direction (up to the next color-coded spec). This means a silver dot (upright) club will play roughly 1/8″ shorter than the same length black dot club for the same feel at setup.

How to Verify and Adjust Your Current Fit

Start by checking the color code mark in the cavity. It is a single paint dot near the sole — look for it at the back of the head, just above the hosel. If the dot is still visible, you already know your spec. If it is worn off or painted over, you have two options: take the club to a Ping authorized fitter for a lie board test, or mail the club to Ping’s Custom Department in Phoenix for re-certification.

Branch – what the test tells you: After a lie board test, you will see impact marks on the sole. If the marks are centered on the sole, the lie is correct. If they are toward the toe (impact point closer to the heel), the club is too upright and needs to be flattened. If marks are toward the heel (impact closer to the toe), the club is too flat and needs to be bent upright. Make note of which direction you need before any bending.

Verification step: After bending, repeat the lie board test. The new impact marks should now be centered front-to-back on the sole. If they are off-center again, the adjustment was either too little or too much. Re-measure and adjust in 0.5° increments until the marks center consistently after three swings.

Failure mode to watch for: If you attempt to bend and feel sudden resistance or hear a metallic creak, stop immediately. The 17-4 stainless heads can be bent up to ±2° from factory spec, but exceeding that may crack the face weld or dislodge the internal tungsten plug. A cracked weld often reveals itself as a dull thud sound at impact and a sudden drop in ball speed. If that happens, do not keep playing the club — send it to a Ping certified repair center for evaluation. The same stop threshold applies: any bending attempt that does not move smoothly means you have reached the mechanical limit; do not force it.

Escalation threshold: If you need more than 2° of lie change, the head alone cannot deliver it safely. In that case, order a new set from Ping with the correct color code. The factory builds the lie into the hosel during casting, so a +3° silver dot is not the same as bending a black dot +3°. The factory spec avoids stress points that field bending would introduce.

Stock Grip Specs

The standard factory grip on the Ping G425 irons is the Golf Pride Tour Velvet 360 (60R, round profile). This grip has a core size of 0.600″ and a total weight of approximately 52 grams. The grip is installed with a single layer of tape under the entire length, but Ping’s factory offers up to four additional wrap layers (at no charge) for build-up sizing.

If you prefer a different grip size, Ping’s custom order system lets you choose from over a dozen grip models including the Lamkin Crossline, Golf Pride MCC Plus4, and Ping’s own ID8 grip. All factory grip changes are applied at build time, so you can order a set with midsize or jumbo grips without adding aftermarket build-up tape.

Frequently Asked Questions

How do the G425 lofts compare to previous Ping game-improvement irons?

The G425 lofts are approximately 1° stronger than the G400 irons and 2° stronger than the G30 irons in the mid-irons, while the wedges (PW through LW) are about 0.5° weaker to maintain consistent gapping with the shorter club lengths.

Can I bend the G425 irons for lie angle adjustments?

Yes. The heads are forged from 17-4 stainless and can be bent up to ±2° from the factory spec without risk of cracking. Bending beyond 2° may damage the face weld or the tungsten plug bond, so any major lie change should be handled by a Ping certified fitter.

What is the standard total weight of a G425 7-iron?

A standard-length 7-iron with the AWT 2.0 steel shaft (Regular flex) and Tour Velvet grip weighs approximately 440 grams. The same club with the Alta CB Red graphite shaft (Regular flex) weighs about 390 grams.

Are the G425 irons compatible with Arccos sensors?

Yes. The G425 grips have a pre-installed Arccos sensor port in the butt end of the grip. The sensor is sold separately, but no drilling or grip removal is needed — it simply screws into the opening.

Do the G425 irons use a standard 0.370″ parallel tip or 0.355″ taper tip?

The G425 irons use a 0.370″ parallel tip diameter. This is consistent with Ping’s long-standing design for their game-improvement irons and allows for easy shaft replacement with most aftermarket parallel-tip shafts.