ASME B107.58M-1998 — Riveting, Scaling, and Tinners’ Setting Hammers: Safety Requirements

28 10 月, 2026
ASME Standards

🔨 ASME B107.58M-1998 (Riveting, Scaling, and Tinners’ Setting Hammers: Safety Requirements) is a safety standard issued by the ASME B107 Standards Committee on Hand Tools and Accessories. It establishes safety requirements for the design, construction, testing, and use of three specialized hammer families: riveting hammers, scaling hammers, and tinners’ setting hammers. The Standard belongs to the B107 striking-tools family and was later consolidated into ASME B107.400 (Striking Tools, 2018 edition); its safety framework — materials, hardness, chamfers, head-handle joints, tests, and limitations of use — follows the same logic as the other B107 striking-tool standards.

💡 The three tools serve three trades: riveting hammers form rivet heads, scaling hammers chip rust, mill scale, and old paint from metal, and tinners’ setting hammers shape and smooth thin sheet metal. All three are “small-face, high-frequency, light-blow” tools — complementary to the heavy striking tools of B107.54.

1. Scope and the Three Tool Families 📌

The Standard (in line with the B107 family layout) sets safety requirements for three categories of hammers:

Tool Category	Use	Construction Features
Riveting Hammer	Forming rivet heads; upsetting and heading rivet shanks	Light compact head, flat striking face at one end, rounded or tapered heading face at the other
Scaling Hammer	Chipping rust, mill scale, and old paint from metal surfaces	One or both ends chisel-edged; light head for sustained chipping strokes
Tinners’ Setting Hammer	Forming, flattening, and dressing seams in thin sheet metal (tinplate, light sheet steel)	Wide flat face, longer handle for controlled blows and positioning

⚠️ The original PDF is a scan with no text layer; this article follows the safety-requirements framework of the comparable B107 series standards (e.g., B107.53 ball peen hammers, B107.57 bricklayers’ hammers). Refer to the official ASME publication for exact clause values.

2. Material and Hardness Requirements 🔧

As with the rest of the B107 striking-tool family, hammer heads should be made of steel (typically carbon or alloy steel, heat-treated) that meets the performance and safety requirements. Typical expectations include:

Striking-face hardness: working surfaces meet service hardness (per ASTM E 18 Rockwell methods) for wear resistance and shape retention;
Toughness control: hardness must not be so high that the head spalls or chips under repeated blows;
Defect control: heads free of cracks, seams, laps, pipes, and cold shuts that would jeopardize sound construction;
Surface safety: no nonfunctional sharp edges or burrs that could injure the user.

Item	Typical Requirement
Material	Carbon/alloy steel or equivalent meeting performance requirements
Striking-face hardness	Per ASTM E 18, within the standard’s working-hardness limits
Head-handle joint	Firmly seated and wedged; withstands specified tensile and static loads
Surface quality	Free of burrs, sharp edges, and harmful defects

3. Design and Test Requirements 📐

Safety design essentials include:

Chamfer: a chamfer or equivalent radius around the striking-face perimeter to prevent edge chipping and flying fragments — a shared requirement of all B107 striking-tool standards;
Handle: wood or synthetic handles free of cracks and splits, firmly attached to the head;
Static force test: applies a specified static load to the head through a fixture, proving structure and joint strength;
Tensile force test: applies axial pull to the head-handle joint so the head cannot detach during a swing. Such tests are inherently hazardous and require safeguards.

4. Safe-Use Essentials 🛠️

Riveting hammer: use only for rivet forming and heading; keep the face square to the rivet axis;
Scaling hammer: wear eye protection — chips travel far; keep bystanders clear;
Tinners’ hammer: control blow force on thin sheet to avoid over-stretching the metal with repeated heavy hits at one spot;
General: inspect heads for cracks and handles for looseness before each use; wear eye and face protection per ANSI Z87.1; mark safety labels per ANSI Z535.4.

🚨 Scaling-hammer chips can fly several meters at high speed — eye protection is mandatory. If a riveting or setting hammer head is loose, it will fly off during a swing: check and re-wedge the head-handle joint before every use.

5. Engineering Practice Essentials 🛠️

🔍 Selection: choose by trade — riveting hammers for rivets, scaling hammers for rust and paint removal, tinners’ hammers for sheet-metal work; do not interchange.
🔧 Blow control: these tools favor “many light taps” over heavy blows; gauge force by the material’s deformation response.
📊 Protection: rust-removal work produces dust and chips — pair eye protection with a dust mask and gloves.
📋 Maintenance: keep faces clean, scaling edges sharp, and joints tight; retire cracked heads immediately.

6. Frequently Asked Questions ❓

❓ Q: Which three hammer families does this Standard cover?
A: Riveting hammers (forming rivet heads), scaling hammers (removing rust, mill scale, and paint), and tinners’ setting hammers (shaping and dressing thin sheet metal).

❓ Q: How does this Standard relate to B107.400-2018?
A: ASME B107.400 (Striking Tools), 2018 edition, consolidated B107.58 and other individual striking-tool standards; in the current system those requirements live in B107.400, with B107.58M-1998 as the earlier stand-alone version.

❓ Q: Why must the striking face have a chamfer?
A: The chamfer (or equivalent radius) removes the sharp face edge so that repeated blows do not chip the rim and throw metal fragments toward the operator — a shared safety design across the B107 striking-tool series.

🔍 Q: What is the most important protection when using a scaling hammer?
A: Eye and face protection per ANSI Z87.1 — rust chips and paint scale fly fast and far; add a dust mask and keep bystanders at a distance.